Page 1 ® Advanced Test Equipment Rentals www.atecorp.com 800-404-ATEC (2832) User Manual CSA7404 & CSA7154 Communications Signal Analyzers, TDS7404, TDS7254, TDS7154, TDS7104, & TDS7054 Digital Phosphor Oscilloscopes, & TDS6604 & TDS6404 Digital Storage Oscilloscopes 071-7010-02 This document supports firmware version 2.3.0 and above.
Page 2 Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077-0001 TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Page 3 WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If this product proves defective during its warranty period, Tektronix, at its option, will either repair the defective product without charge for parts and labor, or provide a replacement in exchange for the defective product.
Page 5: Table Of Contents
......Contacting Tektronix ..........
Page 6 Table of Contents Operating Basics Operational Maps ......... 2- -1 Documentation Map .
Page 7 Table of Contents Using FastFrame ..........3- - 56 Using FastFrame Acquisitions .
Page 8 Table of Contents Sequential Triggering ..........3- - 113 Using Sequential Triggering .
Page 9 Table of Contents Defining Spectral Math Waveforms ........3- - 202 Using Spectral Math Controls .
Page 10 Table of Contents Levels Used in Taking Eye Measurements (Optional on TDS7000 Series & TDS6000 Series) ....B- - 6 P Values ........... . B- - 7 T1 Values .
Page 11 Table of Contents List of Figures Figure 1- -1: Locations of peripheral connectors on rear panel ..1- -8 Figure 1- -2: Powering on the instrument ..... . . 1- -10 Figure 1- -3: Enabling your LAN and connecting to a network .
Page 12 Table of Contents Figure 3- -14: Normal DSO and Fast Acquisition displays ..3- -50 Figure 3- -15: Fast Acquisition XY display ..... . 3- -54 Figure 3- -16: FastFrame .
Page 13 Table of Contents Figure 3- -42: Functional transformation of an acquired waveform ..........3- -186 Figure 3- -43: Derivative math waveform .
Page 14 Table of Contents Figure 3- -63: Print window ........3- -277 Figure 3- -64: Hardcopy formats .
Page 15 Table of Contents List of Tables Table 1- -1: Additional accessory connection information ..1- -9 Table 1- -2: Line fuses ........1- -9 Table 1- -3: Vertical settings .
Page 16 Table of Contents Table A- -10: Mechanical specifications ......A- -37 Table A- -11: Environmental specifications ..... A- -38 Table A- -12: Certifications and compliances .
Page 17: General Safety Summary
General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified. Only qualified personnel should perform service procedures. While using this product, you may need to access other parts of the system.
Page 18 General Safety Summary Symbols and Terms Terms in this Manual. These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.
Page 19: Preface
Preface This user manual covers the following information: H Describes the capabilities of the instrument, how to install it and how to reinstall its software H Explains how to operate the instrument: how to control acquisition of, processing of, and input/output of information H Lists specifications and accessories of the instrument About This Manual This manual is composed of the following chapters:...
Page 20: Related Manuals And Online Documents
Preface Related Manuals and Online Documents This manual is part of a document set of standard-accessory manuals and online documentation; this manual mainly focuses on installation, background, and user information needed to use the product features. See the following list for other documents supporting instrument operation and service.
Page 21: Contacting Tektronix
6:00 a.m. - - 5:00 p.m. Pacific time This phone number is toll free in North America. After office hours, please leave a voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices. xvii...
Page 22 Preface xviii CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 23: Product Description
H Accessories & Options lists the standard and optional accessories for this product. Models This manual supports the following instruments: H CSA7404 Communications Signal Analyzer H CSA7154 Communications Signal Analyzer H TDS7404 Digital Phosphor Oscilloscope H TDS7254 Digital Phosphor Oscilloscope...
Page 24: Key Features
Product Description Key Features CSA7000 Series, TDS7000 Series, and TDS6000 Series instruments are high performance solutions for verifying, debugging, and characterizing sophisticated electronic designs. The series features exceptional signal acquisition perfor- mance, operational simplicity, and open connectivity to the design environment. Classic analog-style controls, a large touch-sensitive display, and graphical menus provide intuitive control.
Page 25: Product Software
Do not attempt to substitute any version of Windows that is not specifically provided by Tektronix for use with your instrument. H Product Software. Comes preinstalled on the instrument. This software, running on Windows 2000, is the instrument application.
Page 26: Software Upgrade
See the instructions for the compact discs for information about installing the support software. Occasionally new versions of software for your instrument may become available at our web site. See Contacting Tektronix on page xvii in Preface. Software Upgrade Tektronix may offer software upgrade kits for the instrument. Contact your Tektronix service representative for more information (see Contacting Tektronix on page xvii).
Page 27: Installation
Installation This chapter covers installation of the instrument, addressing the following topics: H Unpacking on page 1- -6 H Checking the Environment Requirements on page 1- -7 H Connecting Peripherals on page 1- -7 H Powering On the Instrument on page 1- -9 H Shutting Down the Instrument on page 1- -10 H Creating an Emergency Startup Disk on page 1- -11 H Backing Up User Files on page 1- -11...
Page 28: Unpacking
Installation Unpacking Verify that you have received all of the parts of your instrument. The graphical packing list shows the standard accessories that you should find in the shipping carton (probes depend on the option you ordered.) You should also verify that you have: H The correct power cord for your geographical area.
Page 29: Checking The Environment Requirements
Installation Checking the Environment Requirements Read this section before attempting any installation procedures. This section describes site considerations, power requirements, and ground connections for your instrument. Site Considerations The instrument is designed to operate on a bench or on a cart in the normal position (on the bottom feet).
Page 30: Figure 1- 1: Locations Of Peripheral Connectors On Rear Panel
Installation CAUTION. To avoid product damage, either power off the instrument or place the instrument in Standby power mode before installing any accessories except a USB mouse or keyboard to the instrument connectors. (You can connect and disconnect USB devices with the power on.) See Shutting Down the Instrument on page 1- -10.
Page 31: Powering On The Instrument
Table 1- 2: Line fuses Line voltage Description Part number 100 V to 250 V operation UL198G and CSA C22.2, No. Tektronix 159-0046-00 59, fast acting: 8 A, 250 V Bussman ABC-8 Littelfuse 314008 IEC127, sheet 1, fast acting Tektronix 159-0381-00 “F”, high breaking capacity:...
Page 32: Shutting Down The Instrument
Installation Rear panel Front panel Turn on Check the Connect the If needed, push the On/Standby the power. fuses. power cord. switch to power on the instrument. Figure 1- 2: Powering on the instrument Shutting Down the Instrument When you push the front-panel On/Standby switch, the instrument starts a shutdown process (including a Windows shutdown) to preserve settings and then removes power from most circuitry in the instrument.
Page 33: Creating An Emergency Startup Disk
Installation Creating an Emergency Startup Disk Now that you have completed the basic installation process, you should create an emergency startup disk that you can use to restart your instrument in case of a major hardware or software failure. Store this disk in a safe place. CAUTION.
Page 34: Installing Software
Installation 4. Use the backup tool that displays to select your backup media and to select the files and folders that you want to back up. Use the Windows online help for information on using the Backup tool. You can back up to the floppy drive or to a third-party storage device over the printer port (rear panel).
Page 35 You can then purchase an upgrade from Tektronix if you decide that you want to continue to use the application. Refer to the instructions that accompany the CD for installation information.
Page 36 Some options contain software that must be installed and/or enabled. To do the installation, follow the specific instructions that come with the option. Tektronix provides a key that you must enter (one time) to enable all the options that you have purchased for your instrument. To enter the key, select Option Installation in the Utilities menu, and then follow the on-screen instructions.
Page 37: Enabling Your Lan And Connecting To A Network
Installation Enabling Your LAN and Connecting to a Network You can connect the instrument to a network to enable printing, file sharing, internet access, and other communications functions. Before you make the connection, do the following steps to enable network access to the instrument: Front panel Rear panel Power...
Page 38 Installation 5. In the BIOS Setup Utility, use the right-arrow key on the keyboard to highlight the Advanced menu at the top of the screen. 6. Use the arrow down key to highlight PCI Configuration (Peripheral Configuration on some instruments) in the Advanced screen, and then press Enter.
Page 39: Setting Up A Dual Display
Installation Setting up a Dual Display Use the following steps to set up the instrument for dual display operation. You can operate the instrument while having full use of Windows and other applica- tions on the external monitor. Use the On/Standby switch to power down. Connect a Connect an keyboard and...
Page 40 Installation 6. Watch for a message on the external monitor telling you that Windows has successfully initialized the display adapter. 7. The instrument should detect that the new monitor was connected. Follow the instructions on the instrument display to install new drivers for the monitor.
Page 41: Figure 1- 5: Drag Area For Windows Task Bar
Installation Click here to drag task bar. Figure 1- 5: Drag area for Windows task bar 2. Release the mouse when the task bar is where you want it to be. Internal monitor External monitor Drag Drop Select all Figure 1- 6: Moving Windows desktop icons to the external monitor 4.
Page 42 Installation 1- 20 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 43: Incoming Inspection
TDS7254, and TDS7154 instrument require the following additional test equipment: H A P7240 probe (P7260 probe with TDS6604) H A probe calibration and deskew fixture, Tektronix part number 067-0405-xx (067-0848-xx for TDS6604) 1- 21 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 44: Self Tests
Incoming Inspection H One TCA-BNC TekConnect adapter, or one TCA-SMA TekConnect adapter and one SMA male-to-BNC female adapter, such as Tektronix part number 015-1018-xx Self Tests This procedure uses internal routines to verify that the instrument functions and was adjusted properly. No test equipment or hookups are required.
Page 45: Functional Tests
Incoming Inspection e. Run the signal-path compensation routine: H From the Utilities menu, select Instrument Calibration ..This displays the instrument calibration control window. H If required because the instrument is in service mode, select the Signal Path button under Calibration Area. H Touch the Calibrate button to start the routine.
Page 46: Check Vertical Operation
(its label will be highlighted). If this is the case, it is not necessary to push the button. Check Vertical Operation Equipment One BNC cable required CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404: One P7240 probe (P7260 probe for TDS6604) One probe calibration and deskew fixture Prerequisites None 1.
Page 47: Figure 1- -7: Universal Test Hookup For Functional Tests - - Ch
Incoming Inspection CSA7404, CSA7154, TDS7404, TDS7104 & TDS7054 TDS7254, TDS7154, & TDS6404 BNC cable from PROBE COMPENSATION output to Connect the probe tip to the A input of the Probe the short pin and the Calibration and Deskew probe ground to the long...
Page 48: Figure 1- 8: Channel Button Location
H Verify that the vertical scale readout and the waveform amplitude for the channel under test are as shown in Table 1- -3. Table 1- 3: Vertical settings CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404 TDS7104 & TDS7104 &...
Page 49 Incoming Inspection H The front-panel vertical POSITION knob (for the channel you are testing) moves the signal up and down the screen when rotated. H Turning the vertical SCALE knob counterclockwise (for the channel you are testing) decreases the amplitude of the waveform on-screen, turning the knob clockwise increases the amplitude, and returning the knob to the original scale setting returns the amplitude to that shown in Table 1- -3 for that scale setting.
Page 50: Check Horizontal Operation
Figure 1- 9: Setup for time base test 3. Set up the instrument: Push the front-panel AUTOSET button. 4. CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404: Touch the Vert button and then touch Offset. Adjust the Ch1 Offset to 0.8 V using the multipurpose knob.
Page 51 Incoming Inspection 7. Verify that the time base operates: Confirm the following statements. H One period of the square-wave probe-compensation signal is about five horizontal divisions on-screen for the 200 s/div horizontal scale setting. H Rotating the horizontal SCALE knob clockwise expands the waveform on-screen (more horizontal divisions per waveform period), counter- clockwise rotation contracts it, and returning the horizontal scale to 200 s/div returns the period to about five divisions.
Page 52: Check Trigger Operation
9. Remove the test hookup: Disconnect the equipment from the channel input and the probe compensation output. Check Trigger Operation Equipment One BNC cable required CSA7404, CSA7154, TDS7404, TDS7254, TDS7154 TDS6604, & TDS6404 One TCA-BNC TekConnect adapter Prerequisites None 1. Initialize the instrument: Push the front-panel DEFAULT SETUP button.
Page 53: Figure 1- 10: Setup For Trigger Test
CH 1 input to CH 1 input Figure 1- 10: Setup for trigger test 4. CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404: Touch the Vert button and then touch Offset. Adjust the Ch1 Offset to 0.8 V using the multipurpose knob.
Page 54: Check File System
Probe Compensation output. Check File System Equipment One BNC cable required One 1.44 Mbyte, 3.5 inch DOS-compatible formatted disk. CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404: One TCA-BNC TekConnect adapter Prerequisites None 1- 32 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 55: Figure 1- 11: Setup For The File System Test
3. Insert the test disk: Insert the floppy disk in the floppy disk drive at the top of the front panel. 4. Set up the instrument: Push the front-panel AUTOSET button. 5. CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404: Touch the Vert button and then touch Offset. Adjust the Ch1 Offset to 0.8 V using the multipurpose knob.
Page 56 Incoming Inspection b. Click the Save button under Save settings to file in the control window. This displays a familiar Windows dialog box for choosing a destination directory naming the file. c. In the Save Instrument Setup As dialog box, select the 3 Floppy (A:) icon in the Save in: drop-down list to set the save destination to the floppy disk.
Page 57: Perform The Extended Diagnostics
5. Dismiss the CheckIt Utilities: Select Exit in the File menu. 6. Restart your instrument UI software: Click Start, then click Programs in the Start Menu. Finally, click Tektronix Oscilloscope and then TekScope. 1- 35 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 58 Incoming Inspection 1- 36 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 59: Accessories & Options
Accessories & Options This section lists the standard and optional accessories available for the instrument, as well as the product options. Options The following options can be ordered for the instrument: Table 1- 4: Options Option Description K4000 Instrument Cart Rack Mount Kit (includes: hardware and instructions for converting to rackmount configuration) Acquisition memory...
Page 60: Accessories 1
Add (1) TCA- - 1MEG TekConnect high- - impedance buffer amplifier Field upgrades CSA7UP Many are available. Contact Tektronix (see page xvii) for a complete list of available CSA7UP options TDS7UP Many are available. Contact Tektronix (see page xvii) for a complete list of available TDS7UP options TDS6UP Many are available.
Page 61: Accessories
This section lists the standard and optional accessories available for this instrument. Standard The following accessories are shipped with the instrument: Table 1- 5: Standard accessories Accessory Part number Graphical Packing List CSA7404 & CSA7154 071-1045-xx TDS7404, TDS7254, & TDS7154 071-0890-xx TDS7104 & TDS7054 071-0710-xx TDS6604 & TDS6404 071-1061-xx...
Page 62 Performance Verification (a pdf file on the Product Software CD) —— Programmer Online Guide (files on the Product Software CD) —— NIST, Z540-1, and ISO9000 Calibration Certificate —— Four TekConnect-to-SMA adapters, CSA7404, TDS7404, TDS6604, & TCA-SMA TDS6404 Four TekConnect-to-BNC adapters, CSA7154, TDS7254, & TCA-BNC TDS7154 Adapters, CSA7404 &...
Page 63: Table 1- 6: Optional Accessories
Click’N Burn Software CD 063-3575-xx Optional The accessories in Table 1- -6 are orderable for use with the instrument at the time this manual was originally published. Consult a current Tektronix catalog for additions, changes, and details. Table 1- 6: Optional accessories Accessory...
Page 64 Accessories & Options Table 1- 6: Optional accessories (Cont.) Accessory Part number P7330 differential 3.5 GHz probe, CSA7404, CSA7154, TDS7404, P7330 TDS7254, TDS7154, TDS6604 & TDS6404 P6139A 500 MHz passive 10x probe P6139A P6243 1 GHz high speed active probe...
Page 65 TCA-N TDS7154, TDS6604 & TDS6404 TekConnect high impedance buffer amplifier, 500 MHz 1 MΩ BNC-to- TCA-1MEG TekConnect adapter (includes one P6139A probe), CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604 & TDS6404 VocalLink Pro Voice Controlled Software VCLNKP VocalLink Basic Voice Controlled Software...
Page 66 Accessory Part number Dust cap, optical, CSA7404 & CSA7154 200-4104-00 Requires TCA-BNC TekConnect BNC adapter on CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604 & TDS6404 NOTE. The P6339A probe is not supported by this instrument. 1- 44 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 67: Operational Maps
Operational Maps This chapter acquaints you with how the instrument functions and operates. It consists of several maps that describe the system, its operation, and its documen- tation: H Documentation Map, on page 2- -2, lists the documentation that supports the instrument.
Page 68: Documentation Map
Documentation Map This instrument ships with documents individually tailored to address different aspects or parts of the product features and interface. The table below cross references each document to the instrument features and interfaces it supports. To read about… Refer to these documents: Description Installation, Specification, &...
Page 69 Documentation Map You may also want to obtain the optional service manual for this product if you self-service or performance test this instrument. See Accessories & Options on page 1- -37. 2- 3 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 70: System Overview Maps
System Overview Maps The instrument is a highly capable waveform acquisition, test, and measurement system. The following model provides background information on its operation, which, in turn, may provide you insight on how the instrument can be used. Functional Model Map Signal Processing Output &...
Page 71 System Overview Maps H Trigger System. Recognizes a specific event of interest on the input trigger signal and informs the Timebase of the occurrence of the event. Also provides recovered clock and data signals (optional on TDS7000 Series and TDS6000 Series instruments). H Timebase System.
Page 72: Process Overview Map
System Overview Maps Process Overview Map Process Overview Process Block Description The instrument starts in the idle state; it enters this state Idling. . . Reset upon power up, upon receiving most control setting changes, Abort or upon finishing acquisition tasks. Power on Power down Implement...
Page 73: User Interface Map - - Complete Control And Display
User Interface Map - - Complete Control and Display Menu Bar: Access to data I/O, printing, online help system, and instrument functions here Status Bar: Display of acquisition status, mode, and number of acquisitions; trigger status; warnings; date; and time Buttons/Menu.
Page 74: Front-Panel Map - - Quick Access To Most Often Used Features
Front-Panel Map - - Quick Access to Most Often Used Features Use these buttons to start and stop acquisition or start a single acquisition sequence. The ARM, READY, and TRIG’D lights show the acquisition status. Page 3- - 82. Turn knob to adjust waveform intensity. Page 3- - 53. Push button to turn Fast Acquisition on or off (7000 Series only).
Page 75: Display Map - - Single Graticule
Display Map - - Single Graticule Drag icon to change the trigger level Drag cursors to measure waveforms on screen Drag the position icons to reposition a waveform Click icon to assign multipurpose knobs to waveform vertical position and scale Drag across the waveform area to zoom the boxed waveform segment.
Page 76: Front Panel I/O Map
Front Panel I/O Map CSA7000 Series Floppy disk drive Probe compensation Ground terminal output Recovered clock output Recovered data output Channel Optical input inputs O/E converter electrical output TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404 Probe compensation Ground terminal output Auxiliary trigger input Channel Auxiliary trigger output inputs...
Page 77: Rear Panel I/O Map
Rear Panel I/O Map Removable hard disk drive to provide individual environment for each user or to secure data. Press to release CDROM-RW drive accessible from Windows. Press to open USB connector for mouse or keyboard and mouse PS-2 connectors for mouse and keyboard Upper VGA port to connect a monitor for side-by-side display Lower VGA port to connect a...
Page 78 Rear Panel I/O Map 2- 12 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 79: Overview
Overview This chapter describes in depth how the many features of the instrument operate. Please note the following points on using this chapter: H Each section in this chapter provides background information needed to operate your instrument effectively as well as the higher-level procedures for accessing and using the features.
Page 80 Overview Tasks or topics Subtasks or subtopics Section title Contents Page no. Signal Input Acquiring waveforms Acquiring Waveforms Overview of section contents 3- - 7 Signal Connection and Overview of signal connection and 3- - 8 Conditioning conditioning techniques and setups To Set Up Signal Input Setting up signal input 3- - 13...
Page 81 Overview Tasks or topics Subtasks or subtopics Section title Contents Page no. Signal Input Triggering waveforms Triggering Background on basic trigger operation 3- - 71 Triggering Concepts Background on triggering concepts 3- - 72 Triggering From the Front Using the front-panel edge trigger controls 3- - 78 Panel Access Procedures Setting up triggers with front-panel...
Page 82 Overview Tasks or topics Subtasks or subtopics Section title Contents Page no. Display Features Using the Display Displaying Waveforms Using display features and customizing 3- - 123 the display Using the Waveform Overview of display features and setup of 3- - 124 Display the display To Display Waveforms in...
Page 83 Overview Tasks or topics Subtasks or subtopics Section title Contents Page no. Data Processing Taking Measurements To Connect the Probe Connecting the probe calibration and 3- - 173 (Calculation) (Cont.) Calibration Fixture deskew fixture to the instrument (Cont ) (Cont.) To Calibrate Probes Improving measurement accuracy by 3- - 177...
Page 84 Overview Tasks or topics Subtasks or subtopics Section title Contents Page no. Data Input and All uploading and down- Data Input/Output Primary reference for uploading and 3- - 245 Output loading of waveforms, downloading of any data to or from the calculation results, and instrument other data...
Page 85: Acquiring Waveforms
Acquiring Waveforms Before you can do anything (display, print, measure, analyze, or otherwise process) to a waveform, you must acquire the signal. This instrument comes equipped with the features that you need for capturing your waveforms before further processing them according to your requirements. The following topics cover capturing signals and digitizing them into waveform records: H Signal Connection and Conditioning: How to connect waveforms to the instrument channels;...
Page 86: Signal Connection And Conditioning
Acquiring Waveforms Storage Acquisition Channel Input Display system inputs Waveform transform system Horizontal Trigger Auxiliary time base trigger input NOTE. This section describes how the vertical and horizontal controls define the acquisition of live waveforms. These controls also define how all waveforms are displayed, both live and derived waveforms (math waveforms, reference waveforms, and so on).
Page 87: Figure 3- 1: Input And Acquisition Systems And Controls
Acquiring Waveforms NOTE. Terminology: This manual uses the terms vertical acquisition window and horizontal acquisition window throughout this section and elsewhere. These terms refer to the vertical and horizontal range of the segment of the input signal that the acquisition system acquires. The terms do not refer to any windows or display windows on screen.
Page 88: Connecting And Conditioning Your Signals
SMA cables to characterize a device. The connection to the instrument depends on your application. Tektronix provides a variety of probes and cables for this product. For a list of probes available for use, see Accessories and Options on page 1- -37. You can also check your Tektronix catalog for connection accessories that may support your application.
Page 89 Acquiring Waveforms Coupling. All instruments and probes specify a maximum signal level. (See Specifications in your user manuals for exact limits.) Exceeding the limit, even momentarily, may damage the input channel. Use external attenuators, if necessary, to prevent exceeding the limits. Coupling determines whether an input signal is directly connected to the input channel, connected through a DC blocking capacitor (TDS7104 &...
Page 90 Acquiring Waveforms H Set horizontal scale, position, and resolution (record length) so that the acquired waveform record includes the waveform attributes of interest with good sampling density on the waveform. The settings that you make define the horizontal acquisition window (see Horizontal Acquisition Window Considerations on page 3- -23).
Page 91 Acquiring Waveforms To Set Up Signal Input Use the procedure that follows when setting up the instrument to scale and position input signals for acquisition. For more information, display online help while performing the procedure. Overview To set up signal input Related control elements and resources Prerequisites The acquisition system should be set to run...
Page 92: To Set Up Signal Input
Acquiring Waveforms Overview To set up signal input (Cont.) Related control elements and resources Select input TDS7104 and TDS7054 only: termination Push an input termination button to toggle between 1 MΩ and 50 Ω input termination. Hint. Some probes force the instrument to set the termination that the probe requires.
Page 93 Acquiring Waveforms Overview To set up signal input (Cont.) Related control elements and resources Set vertical Use the vertical knobs to scale and position the waveform on screen. acquisition window Positioned vertically Scaled vertically Dragging the waveform handle also positions the waveform.
Page 94 Acquiring Waveforms Overview To set up signal input (Cont.) Related control elements and resources Set horizontal Use horizontal knobs to scale and position the waveform on screen and to set record length. acquisition Dragging the reference icon window also positions the waveform. Scaled horizontally Positioned horizontally The Resolution knob sets the record length.
Page 95: To Autoset The Instrument
Acquiring Waveforms To Autoset the Instrument Autoset automatically sets up the instrument controls (acquisition, display, horizontal, trigger, and vertical) based on the characteristics of the input signal. Autoset is much faster and easier than a manual control-by-control setup. When the input signal is connected, do an autoset to automatically set up the instru- ment: Overview To autoset the instrument...
Page 96: To Reset The Instrument
Acquiring Waveforms Overview To autoset the instrument (Cont.) Control elements and resources Prompt Select User Preferences in the Utilities menu to display the Prompt Before Action window. Touch Autoset to toggle between ON and OFF: OFF to set up for performing an autoset when the AUTOSET button is pushed ON to set up for displaying a prompt before performing an autoset when the AUTOSET button...
Page 97: To Get More Help
Acquiring Waveforms To Get More Help You can get help on the vertical and acquisition controls by accessing online help: Overview To get more help Control elements and resources Prerequisites Instrument powered up and running. See Powering On the Instrument on page 1- - 9. Access Touch the Help button in toolbar mode or select Help on Window from the Help menu in menu bar mode.
Page 98 Acquiring Waveforms Autoset Considerations. Autoset acquires samples from the input signal and attempts to take the following actions based on the input data: H Evaluate the amplitude range of the input signals and set the size and vertical offset of the vertical acquisition window to acquire the signal with good resolution, but without clipping.
Page 99 Acquiring Waveforms The vertical scale and position controls have the following effects on the vertical acquisition window and the displayed waveform: H The vertical volts per division that you set determines the vertical size of the acquisition window, allowing you to scale it to contain all of a waveform amplitude or only part.
Page 100: Figure 3- -2: Setting Vertical Range And Position Of Input
Acquiring Waveforms Vertical +0.5 Volt a. SCALE setting determines window +0.4 Volt the vertical acquisition window size; here 100 mV/div x 10 divisions (8 graticule divisions and 1 division of position) Graticule Channel reference indicator - - 0.4 Volt - - 0.5 Volt +1.0 Volt b.
Page 101: Figure 3- 3: Varying Offset Moves The Vertical Acquisition Window On The Waveform
Acquiring Waveforms H Applying a negative offset moves the vertical range down relative to the DC level of the input signal. Likewise, applying a positive offset moves the vertical range up. See Figure 3- -3. Vertical Window = 100 mV (8 divs X 10 mV /div + (+/- 1 divs of position)) Acquisition window shifts Offset +300 mV positive to capture overshoot...
Page 102: Figure 3- 4: Horizontal Acquisition Window Definition
Acquiring Waveforms H The Horizontal Delay that you set determines the time from the trigger point to the Horizontal Reference. H The horizontal scale and waveform record length (number of samples) that you set determines the horizontal size of the window relative to any waveform, allowing you to scale it to contain a waveform edge, a cycle, or several cycles.
Page 103 Acquiring Waveforms 2. Time Duration (seconds) = Sample Interval (seconds/sample) x Record Length (samples), where: Time Duration is the horizontal acquisition window time duration and: Sample Interval (sec/sample) = Resolution (sec/sample) = 1/Sample Rate (samples/sec) In (2) above, note that it is Sample Interval that varies to accommodate the window time duration (and its scale setting) and the Record Length setting as these latter two elements can be set by you.
Page 104: Setting Acquisition Controls
Acquiring Waveforms Independent vs. Shared Window. The instrument applies the same horizontal acquisition window to all channels from which it acquires data. Unlike the vertical acquisition window that you size and offset independently for each channel, the same time/div, resolution (record length), and horizontal position (from the same trigger point) apply to all channels simultaneously.
Page 105 Acquiring Waveforms Vertical Acquisition scale mode Acquisition Input system Horizontal Record Vertical scale length position Roll mode (CSA7000 Series & TDS7000 Series only) gives a strip chart recorder-like display for low frequency signals. Roll mode lets you see acquired data points without waiting for the acquisition of a complete waveform record. For example, in normal acquisition mode, when the Horizontal Scale is 1 second per division, 10 seconds are required to fill the waveform record.
Page 106: Using The Acquisition Controls
Acquiring Waveforms Using the Acquisition Consider the mode that you want to use to acquire data: Controls H Sample. The instrument does no postprocessing of acquired samples. The instrument saves the first sample (of perhaps many) during each acquisition interval (an acquisition interval is the time covered by the waveform record divided by the record length.) Sample mode is the default mode.
Page 107: Table 3- 1: Additional Resolution Bits
Acquiring Waveforms Table 3- 1: Additional resolution bits Theoretical en- Resulting effective hancement (bits) bits Sample Rate (S/s) Nd (extra samples) 5.00E+00 2.50E+08 13.95 13.00 1.00E+01 1.25E+08 13.45 13.00 2.50E+01 5.00E+07 12.79 13.00 5.00E+01 2.50E+07 12.29 13.00 1.00E+02 1.25E+07 11.79 13.00 2.50E+02 5.00E+06...
Page 108 Acquiring Waveforms H Envelope. Continuously, as subsequent waveforms are acquired, the instrument retains the running minimum (Min) and maximum (Max) values in adjacent sample intervals, creating an envelope of the number of waveforms that you specify. Once the specified number of waveforms is reached, the data is cleared and the process starts over.
Page 109 Acquiring Waveforms Samples sets the minimum number of samples required to complete a single acquisition sequence and the minimum number of samples required to complete a mask test. If not using display persistence, samples sets the minimum number of samples that is required to release the waveform to the display.
Page 110: Figure 3- 6: Roll Mode
Acquiring Waveforms H Single Acquisition. In addition to the Run/Stop Button, which can always stop an acquisition, the SINGLE button (or Single Sequence control) will automatically stop acquisition when one complete acquisition sequence is completed. See step 4, Set the stop mode, on page 3- -35, or access the online help from the Run/Stop control window for more information.
Page 111: Figure 3- 7: Aliasing
Acquiring Waveforms Global Controls. Like the horizontal controls, the acquisition controls apply to all active channels; for example, channel 1 cannot acquire in Sample mode while channel 2 acquires in Envelope mode. You cannot stop channel 4 from acquiring (if turned on) while other channels continue to acquire. Preventing Aliasing.
Page 112: To Set Acquisition Modes
Acquiring Waveforms H Turn on Waveform Database mode to capture more data. H Try adjusting the horizontal scale for proper waveform display. H Try pushing the AUTOSET button. H Try switching the acquisition to Envelope mode. Envelope searches for samples with the highest and lowest values over multiple acquisitions and can detect faster signal components over time.
Page 113 Acquiring Waveforms Overview To set acquisition modes (Cont.) Control elements and resources Select the Touch an Acquisition Mode button to set the acquisition mode; choose from the following modes: acquisition mode Sample Peak Detect Hi Res Envelope Average Waveform Database For Average and Envelope modes only, select the Set waveform number of acquisitions to average or envelope.
Page 114 Acquiring Waveforms Overview To set acquisition modes (Cont.) Control elements and resources To select To select real-time sampling, interpolated real-time sampling, or equivalent-time sampling: real-time or equivalent- time sampling Touch the Horiz button. Select the Acquisition tab from the Horiz/Acq control window, Or select Horizontal/Acquisition Setup from the Horiz/Acq menu to display the Acquisition Mode control window.
Page 115: To Start And Stop Acquisition 3
Acquiring Waveforms To Start and Stop Use the procedure that follows to start and stop acquisition. Acquisition Overview To start and stop acquisition Control elements and resources Prerequisites The horizontal and vertical controls must be set up. Triggering should also be set up. See page 3- - 34 for acquisition setup and page 3- - 71 for trigger setup.
Page 116: To Set Roll Mode
Acquiring Waveforms To Set Roll Mode CSA7000 Series & TDS7000 Series: Use the procedure that follows to set up roll mode acquisitions. Overview To set Roll Mode Control elements and resources Prerequisites The horizontal and vertical controls must be set up. Triggering should also be set up.
Page 117: Acquisition Control Background
Acquiring Waveforms Overview To set Roll Mode (Cont.) Control elements and resources To turn off roll Do the following step to stop acquisitions in roll mode: mode If you are not in Single Sequence, push RUN/ acquisitions STOP to stop roll mode. If you are in Single Sequence, roll mode acquisi- tions stop automatically when a complete record is acquired.
Page 118: Acquisition Hardware
Acquiring Waveforms Acquisition Hardware Before a signal can be acquired, it must pass through the input channel where it is scaled and digitized. Each channel has a dedicated input amplifier and digitizer as shown in Figure 3- -8; each channel can produce a stream of digital data from which waveform records can be extracted.
Page 119: Acquisition Modes
Acquiring Waveforms Acquisition Modes The instrument acquisition system can process the data as it is acquired, averaging or enveloping the waveform data to produce enhanced waveform records. Once the waveform record exists (enhanced or not), you can use the postprocessing capabilities of the instrument to further process that record: perform measurements, waveform math, and so on.
Page 120: Real-Time Sampling
Acquiring Waveforms Sample interval First sampled and digitized point in record Trigger point Record length Horizontal delay Horizontal reference Horizontal position Figure 3- 10: The waveform record and its defining parameters As Figure 3- -10 shows, the instrument acquires points in order from left to right. When all the points in the waveform record have been sampled and digitized, the waveform record is in acquisition memory and becomes available for display (or use in math waveforms, storage, and so on).
Page 121: Equivalent-Time Sampling 3
Acquiring Waveforms Equivalent-Time Sampling The instrument uses equivalent time sampling to extend its sample rate beyond its real-time maximum sampling rate, but only under two conditions: H You must have selected equivalent-time in the Acquisition Setup control window. H You must have set the instrument to a sampling rate that is too fast to allow it to get enough samples with which to create a waveform record using real-time sampling.
Page 122: Equivalent-Time Sampling
Acquiring Waveforms Table 3- 2: Sampling mode selection Channels on 3 or 4 Time base CSA7404, CSA7154, TDS7404, TDS7254, & TDS7154 ≥10 ns Real-time sampling Real-time sampling Real-time sampling ≥20 ns 5 ns Real-time sampling Real-time sampling Equivalent-Time or Interpolated Sampling 2.5 ns...
Page 123: Interpolation
Acquiring Waveforms Record points 1st Acquisition cycle 2nd Acquisition cycle 3rd Acquisition cycle nth Acquisition cycle Figure 3- 12: Equivalent-time sampling The type of equivalent-time sampling the instrument uses is called random equivalent-time sampling. Although it takes the samples sequentially in time, it takes them randomly with respect to the trigger.
Page 124: Interleaving
(See Equivalent-Time Sampling on page 3- -43.) Table 3- 3: How interleaving affects sample rate Number of Maximum digitizing rate when real-time sampling channels in channels in CSA7404 CSA7154 TDS7404 TDS7254 TDS7154 TDS7104 TDS7054...
Page 125: Using Fast Acquisition Mode
Acquiring Waveforms Using Fast Acquisition Mode CSA7000 Series & TDS7000 Series: This section describes how to use Fast Acquisition mode and how it differs from normal acquisition mode. Fast acquisition mode reduces the dead time between waveform acquisitions that normally occur when digitizing storage instruments (DSOs) acquire waveforms. This dead-time reduction enables Fast Acquisition mode to capture and display transient events, such as glitches or runt pulses, often missed during longer dead times that accompany normal DSO operation.
Page 126: Using Fast Acquisitions
Acquiring Waveforms Using Fast Acquisitions Consider the mode that you want to use to acquire data: Automatic Selection. Fast Acquisitions automatically selects record length and sample rate to optimize the displayed image by optimizing live time and minimizing dead time. Fast Acquisitions selects the sample rates and record lengths and compresses them to 500 pixels to produce the maximum display content.
Page 127: Figure 3- -13: Normal Dso Acquisition And Display Mode Versus
Acquiring Waveforms Normal DSO mode 1st acquired Next acquired Next acquired waveform record waveform record waveform record Dead time Dead time Dead time Waveform Waveform Waveform memory memory memory Display Updated display Updated display Fast Acquisition mode Acquired waveform records Waveform Waveform Waveform...
Page 128: Figure 3- -14: Normal Dso And Fast Acquisition Displays 3
Acquiring Waveforms Fast Acquisition display Normal DSO display Figure 3- 14: Normal DSO and Fast Acquisition displays To Turn Fast Acquisitions Use the procedure that follows to set up Fast Acquisitions mode. On and Off 3- 50 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 129: To Turn Fast Acquisitions On And Off 3
Acquiring Waveforms Overview To turn Fast Acquisitions on and off Control elements and resources Prerequisites The horizontal and vertical controls must be set up. Triggering should also be set up. See page page 3- - 34 for acquisition setup. To enable fast Enable fast acquisitions in one of two ways: acquisitions Push the front-panel FastAcq button.
Page 130 Acquiring Waveforms Overview To turn Fast Acquisitions on and off (Cont.) Control elements and resources To set the Touch the DISP button and select the Appearance tab. style Select between Vectors, Dots, or Inten Samp display styles. (Dots is the default setting when in Equivalent Time (ET) acquisition mode.
Page 131 Acquiring Waveforms Overview To turn Fast Acquisitions on and off (Cont.) Control elements and resources To adjust the 10. Rotate the INTENSITY knob to adjust the intensity of displayed waveforms, or touch Intensity and enter the intensity intensity value with the keypad or the multipurpose knob.
Page 132: To Set Display Format
Acquiring Waveforms To Set Display Format The instrument displays waveforms in one of three formats: YT, XY, or XYZ. Use the procedure that follows to set the display format. Overview To set display format Control elements and resources To select the To set the display axis format, touch the DISP button and select the Appearance tab.
Page 133: Table 3- 4: Xy And Xyz Format Assignments
Acquiring Waveforms Overview To set display format (Cont.) Control elements and resources To select the XYZ. This format compares the voltage levels of the CH 1 (X) and CH 2 (Y) waveform records point by point format (Cont.) as in XY format. XYZ requires Fast Acquisitions mode. The displayed waveform intensity is modulated by the CH 3 (Z) waveform record.
Page 134: Using Fastframe
Acquiring Waveforms Using FastFrame CSA7000 Series & TDS7000 Series: FastFrame is an acquisition mode that lets you capture many records in a larger record, and then view and measure each record individually. FastFrame lets you quickly capture multiple acquisitions in the acquisition memory of a single channel.
Page 135: Using Fastframe Acquisitions
Acquiring Waveforms FastFrame is not compatible with these features or modes: H Equivalent Time H Histograms H Fast Acquisitions H Average H Envelope H Waveform Database Using FastFrame Consider the following operating characteristics when using FastFrame: Acquisitions H You can push RUN/STOP to terminate a FastFrame sequence. If any frames were acquired, they are displayed.
Page 136: To Set Fastframe Mode
Acquiring Waveforms H FastFrame reduces the time required before the trigger is rearmed, while preserving the individual subrecords, a detail lost in Fast Acquisitions which writes all acquired records to a single pixel map. To Set FastFrame Mode Use the procedure that follows to set up FastFrame mode acquisitions. Overview To set FastFrame mode Control elements and resources...
Page 137 Acquiring Waveforms Overview To set FastFrame mode (Cont.) Control elements and resources Set frame Touch Frame Count, and enter the number of frames to acquire per waveform record. count Frame count is the number of acquisitions to store in the acquisition memory of the channel.
Page 138: Time Stamping Frames
Acquiring Waveforms Time Stamping Frames Use Time Stamps to display the absolute trigger time for a specific frame and the relative time between triggers of two specified frames. To start FastFrame Time Stamps, do the following steps: Overview Time stamping frames Control elements and resources Prerequisites FastFrame mode should be set up as described in the...
Page 139 Acquiring Waveforms Overview Time stamping frames (Cont.) Control elements and resources Select the In the Time Stamps controls, touch Source and select the source of the reference frame. reference frame In the Time Stamps controls, touch Frame and use the general purpose knob or keypad to enter the number of the reference frame.
Page 140: Figure 3- -17: Fastframe Time Stamp 3
Acquiring Waveforms Overview Time stamping frames (Cont.) Control elements and resources To lock the 10. Touch the Horiz button. Select the Acquisition tab from the Horiz/Acq control window. Touch FastFrame Setup reference to display the FastFrame Setup control window. position frames Note.
Page 141: O/E Converter
62.5/50 m or singlemode fiber with a core diameter of 9 m. Alternate types can be coupled by use of UCI (universal connector interface) series adapters. (Refer to a current Tektronix catalog for details.) Attach the fiber optic cable with a suitable connector or a UCI Interface adapter to the optical input receptacle as follows: 1.
Page 142: Attenuating Optical Signals
Some of the standard UCI interfaces supported are FC, ST, SC, and DIN. (Refer to a current Tektronix catalog for details.) Output Connectors Clock and data-recovery circuitry provides recovered clock and data outputs. The signals are also available internally for use by the instrument.
Page 143: O/E Electrical Out-To-Ch1 Input Adapter 3
Acquiring Waveforms RECOVERED CLOCK. This output is synchronous with the incoming data signal. A sample of the input data is routed to the serial clock recovery circuit. Recovered clock is available when using either optical or electrical signals. NOTE. If no signal (or an inappropriate signal) is applied to the front panel, the recovered clock and data will oscillate.
Page 144: O/E-To-Sma Adapter
Cleaning kits for optical connectors (such as the Tektronix Optical Connector Cleaner kit number 020-2357-00) are available from a number of suppliers.
Page 145: Compensation
Acquiring Waveforms 3. Spray the clean compressed air on the connectors to remove any loose particles or moisture. 4. Moisten a clean optical swab with isopropyl alcohol, and then lightly swab the surfaces of the connectors. 5. Spray the clean compressed air on the connectors again to remove any loose particles or isopropyl alcohol.
Page 146: Optical Bandwidth
Acquiring Waveforms Figure 3- 20: Vertical setup menu with optical controls First select Ch1 in the Waveform section of the menu. Then touch the Wave- length button that matches your system. You select the mask, bandwidth, and Bessel-Thompson filter appropriate for your optical standard using the Masks menus.
Page 147 Acquiring Waveforms For electrical bandwidths the reference of a system is commonly the response of the system to a sinusoidal frequency at or near DC. The point at which the system response is one half would therefore be: dB = 10 log = −...
Page 148: Bandwidth For Unfiltered Settings
Acquiring Waveforms The V(f) is the frequency at which the vertical swing is one half (0.5) the V(DC) not 0.707. The optical bandwidth therefore corresponds to the traditional electrical bandwidth of - -6 dB. During testing of optical systems by impulse testing, the resulting impulse waveform is converted to frequency by Fourier transform and the bandwidth is defined as - -3 dB = 10 log(vertical swing at frequency / vertical swing at DC).
Page 149: Triggering
Triggering To properly acquire data, that is, to use the instrument to sample a signal and digitize it into a waveform record that you want to measure or otherwise process, you need to set up the trigger conditions. This section provides background on, and the procedures for using, the basic elements of triggering: source, holdoff, mode, and so on.
Page 150: Triggering Concepts
Triggering Storage Acquisition Display Input system transform system Horizontal Trigger timebase Triggering Concepts Triggers determine when the instrument stops acquiring and displays a wave- form. They help create meaningful waveforms from unstable jumbles or blank screens. (See Figure 3- -21.) The instrument has simple edge triggers as well as a variety of advanced triggers you can use.
Page 151: The Trigger Event
Triggering The Trigger Event The trigger event establishes the time-zero point in the waveform record. All points in the record are located in time with respect to that point. The instrument continuously acquires and retains enough sample points to fill the pretrigger portion of the waveform record (that part of the waveform that is displayed before, or to the left of, the triggering event on screen).
Page 152: Trigger Modes
Triggering H Advanced triggers are a collection of trigger types that are primarily used with digital signals to detect specific conditions. The glitch, runt, width, transition, and timeout types trigger on unique properties of pulses that you can specify. The pattern and state types trigger on logic combinations of several signals.
Page 153: Trigger Holdoff
Triggering Be aware that auto mode, when forcing triggers in the absence of valid triggering events, does not synchronize the waveform on the display. See the Automatic trigger mode part of Figure 3- -22. Successive acquisitions will not be triggered at the same point on the waveform; therefore, the waveform will appear to roll across the screen.
Page 154: Trigger Coupling
Triggering CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6000 Series: Random holdoff selects a new random holdoff time for each acquisition cycle. Random holdoff is only available when A only, Edge triggering is selected. Rather than helping the instrument synchronize on a particular feature of a pulse train, random holdoff prevents synchronization, helping to reveal features of some pulse trains.
Page 155: Horizontal Position
Triggering Horizontal Position Horizontal position is adjustable and defines where on the waveform record the trigger occurs. It lets you choose how much the instrument acquires before and after the trigger event. The part of the record that occurs before the trigger is the pretrigger portion.
Page 156: Delayed Trigger System
Triggering Delayed Trigger System You can trigger with the A (Main) trigger system alone or you can combine the A (Main) trigger with the B (Delayed) trigger to trigger on sequential events. When using sequential triggering, the A trigger event arms the trigger system and then the B trigger event triggers the instrument when the B trigger condi- tions are met.
Page 157 Triggering Overview Triggering from the front panel (Cont.) Control elements and resources To select the Push the EDGE button to select edge type triggering. trigger type Push ADVANCED to bring up the Trigger control window where you can select and set up other trigger types. To select the Push the TRIGGER SLOPE button to toggle between trigger slope...
Page 158 Triggering Overview Triggering from the front panel (Cont.) Control elements and resources To set to 50% 5. To quickly obtain an edge, glitch, or width trigger, push the trigger LEVEL knob. The instrument sets the trigger level to the halfway point between the peaks of the trigger signal.
Page 159 Triggering Overview Triggering from the front panel (Cont.) Control elements and resources To set the Push the up and down arrow buttons to toggle through trigger the possible trigger couplings: coupling DC passes all (both AC and DC components) of the input signal.
Page 160: To Check Trigger Status
Triggering To Check Trigger Status To see the state and setup of the triggering circuit, use the trigger status lights, readout, and screen. Overview To check trigger status Control elements and resources Trigger status To quickly determine trigger status, check the three from trigger sta- status lights TRIG’D, READY, and ARM in the Trigger tus lights...
Page 161: Additional Trigger Parameters
Triggering Overview To check trigger status (Cont.) Control elements and resources Trigger To see the trigger point and level on the waveform Trigger point indicator shows the trigger position on the location and display, check the graphic indicators Trigger Point and waveform record.
Page 162 Triggering Overview Additional trigger parameters Control elements and resources To set holdoff You can change the holdoff time to help stabilize triggering. See Trigger Modes and Trigger Holdoff beginning on page 3- - 74 for a description of trigger holdoff. To set holdoff, do the following steps: Push the ADVANCED button, and select the Mode tab.
Page 163 Triggering Overview Additional trigger parameters (Cont.) Control elements and resources To select a Push the ADVANCED button, and select the A Event preset trigger tab. level Select a Trigger Type, such as Edge, that uses a level adjustment. Select Level and click the keyboard icon to display the keyboard.
Page 164 Triggering Overview Additional trigger parameters (Cont.) Control elements and resources To define new If the Menu Bar is not displayed, touch the Menu button trigger level to display the Menu Bar. presets Touch Utilities, and select User Preferences to display the User Preferences control window.
Page 165 Triggering Overview Additional trigger parameters (Cont.) Control elements and resources To force a Push the ADVANCED front-panel button to display the trigger trigger control window. Select the A Event or B Event tab, and select the Edge trigger type. To force the instrument to immediately acquire one waveform record even without a trigger event, touch the Force Trigger button.
Page 166: Advanced Triggering
Triggering Overview Additional trigger parameters (Cont.) Control elements and resources To single trigger 1. To trigger on the next valid trigger event and then stop, push the SINGLE front-panel button. Push the SINGLE button each time you want to initiate the single sequence of acquisitions.
Page 167: Figure 3- -25: Example Advanced Trigger Readout 3
Triggering You can check the advanced trigger status in the readout. The readout indicates the trigger type and then shows sources, levels, or any other parameters that are important for the particular trigger type. Figure 3- -25 shows an example readout for the state trigger type.
Page 168 Triggering Transition Trigger. A transition (slew rate) trigger occurs when the trigger source detects a pulse edge that transitions (slews) between two amplitude levels at a rate faster or slower than you specify. The instrument can trigger on positive or negative transitions.
Page 169: Table 3- 5: Pattern And State Logic
Triggering Table 3- 5: Pattern and state logic 1, 2 Pattern State Definition Clocked AND If all the preconditions selected for the logic inputs are TRUE, then the instrument triggers. NAND Clocked NAND If not all of the preconditions selected for the logic inputs are TRUE, then the instrument triggers.
Page 170 Triggering Setup/Hold Trigger. A setup/hold trigger occurs when a logic input changes state inside of the setup and hold times relative to the clock. When you use setup/hold triggering, you define: H The channel containing the logic input (the data source) and the channel containing the clock (the clock source) H The direction of the clock edge to use H The clocking level and data level that the instrument uses to determine if a...
Page 171: Figure 3- -26: Violation Zones For Setup/Hold Triggering 3
Triggering Setup/Hold violation = Setup time zone = Hold time Setup/Hold violation zone = T must be ≥ +2 ns Clock level Clock signal Setup/Hold violation zone - - T Clock level Clock signal Setup/Hold violation zone - - T Clock level Clock signal Positive T...
Page 172: To Trigger On A Glitch
Triggering To Trigger on a Glitch When you select the type Glitch, the instrument will trigger on a pulse narrower (or wider) in width than some specified time. To set up for glitch triggering, do the following procedures. Overview To trigger on a glitch Control elements and resources Prerequisites 1.
Page 173 Triggering Overview To trigger on a glitch (Cont.) Control elements and resources Set to trigger if To specify whether to trigger on glitches narrower or width greater than the width you specify, touch < or >: Trig if Width < will trigger only on pulses narrower than the width you specified.
Page 174: To Trigger On A Runt Pulse
Triggering To Trigger on a Runt Pulse When you select the type Runt, the instrument will trigger on a short pulse that crosses one threshold but fails to cross a second threshold before recrossing the first. To set up for runt triggering, do the following procedures. Overview To trigger on a runt pulse Control elements and resources...
Page 175 Triggering Overview To trigger on a runt pulse (Cont.) Control elements and resources Set to trigger To determine how wide a runt pulse the instrument will trigger when Touch Trigger When Runt and select from the list: Occurs triggers on all runt pulses regardless of width.
Page 176 Triggering Overview To trigger on a runt pulse (Cont.) Control elements and resources Set the To set the two threshold levels used in detecting a runt thresholds pulse, touch Upper Limit or Lower Limit, and use the multipurpose knob or keypad to set the values for the upper and lower thresholds.
Page 177: Trigger Based On Pulse Width
Triggering Overview To trigger on a runt pulse (Cont.) Control elements and resources To set mode Mode and holdoff can be set for all standard trigger and holdoff types. See To set holdoff on page 3- - 84 and To select the the trigger mode on page 3- - 81 for mode and holdoff setup.
Page 178 Triggering Overview Trigger based on pulse width (Cont.) Control elements and resources Select the To specify the polarity of the pulse, touch Pos (positive) polarity or Neg (negative) from the window: Pos looks at positive-going pulses. Neg looks at negative-going pulses. Set to trigger To set the range of widths (in units of time) the trigger source when...
Page 179 Triggering Overview Trigger based on pulse width (Cont.) Control elements and resources To set mode Mode and holdoff can be set for all standard trigger and holdoff types. See To set holdoff on page 3- - 84 and To select the trigger mode on page 3- - 81 for mode and holdoff setup.
Page 180: To Trigger Based On Transition Time
Triggering Overview To trigger based on transition time (Cont.) Control elements and resources Select polarity 4. To specify the direction of the pulse edge, touch Polarity and select Pos (positive), Neg (negative) or Either from the window: Pos monitors the transition time (slew rate) of the positive-going edges of pulses.
Page 181 Triggering Overview To trigger based on transition time (Cont.) Control elements and resources Set to trigger The instrument compares the pulse edge of the trigger when source against the transition time (slew rate) set by the upper and lower threshold settings and the delta time set in the window.
Page 182: Trigger Based On Pulse Timeout 3
Triggering Trigger Based on When you select the type Timeout, the instrument will trigger if a pulse Pulse Timeout transition does not occur within a specified time limit. That is, the trigger will occur when, depending on the polarity that you select, the signal stays higher or stays lower than the trigger level for the timeout value.
Page 183: Trigger On A Pattern 3
Triggering Overview Trigger based on pulse timeout (Cont.) Control elements and resources Set the timer 5. To set the timeout timer, touch Timer and use the multipurpose knob or keyboard to set the time. Set the level 6. To set the Level, touch Level and use the multipurpose knobs or keypad to set the timeout trigger level.
Page 184 Triggering Overview Trigger on a pattern (Cont.) Control elements and resources To Trigger on a From the toolbar, touch Trig, and select the A Event tab pattern of the Trigger control window. Touch Pattern. To define To set the logic state for each of the input channels pattern inputs (Ch1, Ch2, .
Page 185 Triggering Overview Trigger on a pattern (Cont.) Control elements and resources To set trigger To choose to trigger when the logic condition is met when (goes TRUE) or when the logic condition is not met (goes FALSE), touch Trigger When Pattern, and select False, Less Than, More Than, or True from the list.
Page 186: Trigger On A Pattern
Triggering Overview Trigger on a pattern (Cont.) Control elements and resources You can time qualify a pattern logic trigger. That is, you To define a time specify a time that the boolean logic function (AND, NAND, qualified pattern OR, or NOR) must be TRUE. To specify the time limit as well trigger as the type of time qualification (More Than or Less Than the time limit specified) for a pattern trigger, do the following...
Page 187: To Trigger On A State
Triggering To Trigger on a State When you select the type State, the instrument uses channel 4 as a clock and triggers on a logic circuit made from the rest of the channels (page 3- -91 describes how state triggers work). To use state triggering, do the following procedures.
Page 188: To Trigger On Setup/Hold Time Violations
Triggering Overview To trigger on a state (Cont.) Control elements and resources Set trigger To choose to trigger when the logic condition is met when (goes TRUE) or when the logic condition is not met (goes FALSE), touch Trigger When Pattern and select False or True from the list.
Page 189 Triggering Overview To trigger on setup/hold time violations (Cont.) Control elements and resources Define the data To select the channel that is to contain the data signal, source touch Data Source, and select the source from the list. Note. Do not select the same channel for both the data and clock sources.
Page 190 Triggering Overview To trigger on setup/hold time violations (Cont.) Control elements and resources Set the setup To set the setup time and the hold time relative to the clock: and hold times Touch Setup Time and use the multipurpose knobs or keypad to set the setup time.
Page 191: Sequential Triggering
Triggering Cursors measure the setup/hold violation zone which equals setup time + hold time (30 ns). The instrument recognizes the violation and triggers at the clock edge. Data (Ch1) transition occurs within 14.88 ns after the clock violating the hold time limit.
Page 192: Using Sequential Triggering
Triggering Using Sequential Read the following topics; they provide details that can help prevent false steps Triggering in setting up to trigger on your waveforms. Trigger Sources. In most cases, it makes sense to set separate trigger sources for the A (Main) and B (Delayed) triggers. Line is not available as a source for the B trigger.
Page 193: Figure 3- -28: Triggering With Horizontal Delay Off 3
Triggering Triggering with Horizontal Delay Off. Figure 3- -28 compares the sequential trigger choices A-Only, Trig After Time, and Trig on n Event when horizontal delay is off. Each illustration shows where pretrigger and posttrigger data is acquired relative to the trigger event. Posttrigger record Pretrigger record A (Main) Only...
Page 194: Figure 3- -29: Triggering With Horizontal Delay On 3
Triggering Triggering with Horizontal Delay On. You can use horizontal delay when you want to acquire a waveform record that is separated from the trigger event by a significant interval of time. The horizontal delay function can be used with any trigger setup.
Page 195: Figure 3- -30: Trigger And Horizontal Delay Summary 3
Triggering The flow diagram in Figure 3- -30 summarizes all combinations of triggering and horizontal delay. Wait for Acquire Trigger on A Only with A (Main) posttrigger horizontal delay off trigger data Wait Trigger on A Only with user-specified horizontal delay on horizontal delay time Wait for B...
Page 196: To Trigger On A Sequence
Triggering To Trigger on a Sequence Use the procedure that follows when setting up the instrument to trigger on a sequence. For more information, display online help while performing the procedure. Overview To trigger on a sequence Control elements and resources Prerequisites 1.
Page 197 Triggering Overview To trigger on a sequence (Cont.) Control elements and resources To trigger on To set the time base to run after an A trigger, a trigger delay, and a B trigger, from the toolbar, touch Trig, and B after time select the A- - >B Seq tab of the Trigger control window Touch Trig After Time.
Page 198 Triggering Overview To trigger on a sequence (Cont.) Control elements and resources To trigger on To set the time base to trigger after an A trigger and a B events specified number of B trigger events, from the toolbar, touch Trig, and select the A- - >B Seq tab of the Trigger control window.
Page 199 Triggering Overview To trigger on a sequence (Cont.) Control elements and resources To set up b To set the B Event trigger, from the toolbar, touch Trig, triggering and select the B Event tab of the Trigger control window. To specify which channel becomes the B trigger source, touch Source, and select the source from the list.
Page 200: Comm Triggering
Triggering Comm Triggering The instrument can trigger on communication signals (optional on CSA7000 Series & TDS6000 Series). For detailed information on using comm triggering to trigger on your communications signals, see the CSA7000, TDS7000 & TDS6000 Series Options SM Serial Mask Testing and Option ST Serial Triggering User Manual.
Page 201: Displaying Waveforms
Displaying Waveforms This instrument includes a flexible, customizable display that you can control to display the waveforms that you acquire. This section presents the following topics: H Using the Waveform Display H Setting MultiView Zoom Controls H Customizing the Display Storage Acquisition Display...
Page 202: Using The Waveform Display
Displaying Waveforms Using the Waveform Display The waveform shown below is displayed as part of the User Interface (UI) application. The UI application takes up the entire screen of the instrument, and the graticule takes up most of the UI application. Some terms that are useful in discussing the display follow.
Page 203: Using The Display
Displaying Waveforms (3) Horizontal-scale readout. For magnified and unmagnified waveforms. (4) Horizontal reference. A control that you can position to set the point around which channel waveforms expand and contract horizontally on screen as you change the Horizontal Scale control or push the ZOOM button. The reference is also the trigger point when the horizontal delay is 0%.
Page 204: Table 3- 6: Defining And Displaying Waveforms
Displaying Waveforms Table 3- 6: Defining and displaying waveforms Waveform To define: To turn on: Channel: Ch1 - - Ch4 Channels are predefined Push the Vertical CH button to toggle the channel on or off. Reference: Ref1 - - Ref4 Define an active reference waveform by: From the Refs setup control window, touch Display to toggle display of the selected reference on or off.
Page 205 Displaying Waveforms Table 3- 7: Operations performed based on the waveform type (Cont.) Control function Waveform supports Operating notes Math Horizontal Scale Waveforms are adjusted according to the Zoom Lock setting. Horizontal Position Horizontal Record Length Quick Horizontal and Vertical Dragging a box around a portion of the selected waveform adjusts Scale Adjust (Zoom) horizontal scale to fill the zoom graticule with the boxed portion (see...
Page 206: Figure 3- -32: Horizontal Position Includes Time To Horizontal Reference 3
Displaying Waveforms H The instrument displays a math waveform with the horizontal settings derived from the math expression that creates it. You cannot change these directly. See Creating and Using Math Waveforms on page 3- -185 for more information on math waveforms. H All waveforms are displayed fit-to-screen;...
Page 207: To Display Waveforms In The Main Graticule 3
Displaying Waveforms Mouse and Touch Screen Operation. In general, anything that you can do with the mouse, you can do by touching the screen, if the touch screen is on. You can select or change all menus and buttons that are displayed on screen by mouse clicks or touching the on-screen control while the touch screen is on.
Page 208 Displaying Waveforms Overview To display waveforms in the main graticule (Cont.) Related control elements and resources Set horizontal To make sure the main graticule is selected, push the Zoom button to toggle it off. Use the horizontal knobs to display scale and position the waveform on screen and to set parameters sample resolution.
Page 209: Setting Multiview Zoom Controls
Displaying Waveforms Overview To display waveforms in the main graticule (Cont.) Related control elements and resources Quick-adjust To quickly rescale a portion of a channel waveform so that it expands to fill the 10 divisions on screen, touch the timebase and drag across the segment of the waveform that (zoom) you want to see in greater detail.
Page 210: Using With Waveforms
Displaying Waveforms Using with Waveforms To help you use MultiView Zoom effectively, consider how it operates on waveforms. When in zoom mode, the instrument vertically expands or contracts one waveform at a time unless zoom lock is on. Also, the instrument only vertically positions one waveform at a time when in Zoom.
Page 211: To Zoom Waveforms
Displaying Waveforms Overview To zoom waveforms (Cont.) Control elements and resources Select zoom You can select zoom in two ways: To zoom a waveform, touch and drag across the segment of the waveform that you want to see in greater detail. Then select Zoom 1 On, Zoom 2 On, Zoom 3 On, or Zoom 4 On to magnify the highlighted waveform segment in one of the 4 zoom areas.
Page 212 Displaying Waveforms Overview To zoom waveforms (Cont.) Control elements and resources Zoom a To zoom a waveform, start by using one of two methods to select the axis that you want to adjust: waveform Push the button or the button to select HORIZ VERT the axis that you want to adjust in the zoom...
Page 213 Displaying Waveforms Overview To zoom waveforms (Cont.) Control elements and resources Set up To display the Zoom setup window, touch Setup in the controls window. Select the tab for the zoomed MultiView waveform area that you want to set up. Zoom Note.
Page 214 Displaying Waveforms Overview To zoom waveforms (Cont.) Control elements and resources Checking the To quickly determine the zoom factor and position of a zoomed waveform, check the readouts: zoom factor and position The Zoom setup window displays the horizontal and vertical position and zoom factor of the selected zoom area.
Page 215 Displaying Waveforms Overview To zoom waveforms (Cont.) Control elements and resources To Lock and 12. To display the zoom Lock and Scroll setup window, touch Setup in the controls window. Select the Lock and Automatically Scroll tab. Scroll Zoom Areas 13.
Page 216: Customizing The Display
Displaying Waveforms Customizing the Display Use the display customizing features this instrument provides to present the display elements — color, graticule style, waveform representation, and so on — according to your preferences. From the Color Palette, you can select temperature, spectral, or gray scale color grading of a waveform so that its data color or intensity reflects the sample density of the data in that area of the waveform.
Page 217 Displaying Waveforms Table 3- 8: Customizable display elements (Cont.) Display attribute Access Options Menu name Entry Display Colors Color Palette Choose Normal to use system colors for best viewing. (Record View and Choose Green to display variable persistence waveforms in Waveform Data- shades of green.
Page 218 Displaying Waveforms Table 3- 8: Customizable display elements (Cont.) Display attribute Access Options Menu name Entry Display format Display Appearance CSA7000 Series & TDS7000 Series: Choose YT XY or XYZ display formats For additional information Choose YT, XY, or XYZ display formats. For additional information Disp Appearance see To Set Display Format on page 3- - 54.
Page 219: Set Display Styles
Displaying Waveforms Persistence style is only available for live waveforms (waveforms with data that is being updated); reference waveforms are static and do not use persistence. Math waveforms use persistence if their sources are live waveforms. Interpolation. When, due to preview, zoom, or Real Time mode with limited samples, the available sample density falls to less than 1 sample per display column, the instrument calculates intermediate points by either the linear or sine algorithms, and uses them to produce points.
Page 220 Displaying Waveforms Overview Set display styles (Cont.) Related control elements and resources Access the From the toolbar, touch Disp, and then select the Appearance tab. See right. The CSA7000 Series & display setup TDS7000 Series dialog box is shown. dialog box Select the From Display Persistence, choose a persistence mode: display style...
Page 221 Displaying Waveforms Overview Set display styles (Cont.) Related control elements and resources Select a From the the Display setup control window (see right), choose a persistence mode: persistence mode Infinite Persistence to make data persist indefinite- ly. Waveform displays accumulate data as new waveform records acquire, resulting in a build up of data in the displayed waveforms.
Page 222: Customize Graticule And Waveforms 3
Displaying Waveforms Customize Graticule and Use the procedure that follows to become familiar with the display adjustments Waveforms that you can make. Overview Customizations you can make Related control elements and resources Prerequisites Display the waveforms to be measured on screen. The waveform may be a channel, reference, or math waveform.
Page 223 Displaying Waveforms Overview Customizations you can make (Cont.) Related control elements and resources To set the Touch the DISP button and select the Objects tab. display Touch Display Date/Time to toggle between On and Off. readout (On displays the date and time.) options Touch Display Trigger T to toggle between On and Off.
Page 224 Displaying Waveforms 3- 146 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 225: Measuring Waveforms
Measuring Waveforms The instrument comes equipped with cursors and automatic measurements to assist you in analyzing your waveforms. This section describes these tools and how you use them: H Taking Automatic Measurements, on page 3- -148, describes how you can setup the instrument to automatically measure and display a variety of waveform parameters.
Page 226: Taking Automatic Measurements
Measuring Waveforms Cursors Readouts Graticule Cursor readouts Measurement readouts Figure 3- 33: Graticule, Cursor, and Automatic measurements Taking Automatic Measurements The instrument automatically takes and displays waveform measurements. This section describes how to set up the instrument to let it do the work of taking measurements for you.
Page 227: Figure 3- -34: Annotated Display 3
Measuring Waveforms Annotate Waveforms On Screen. You can create text to mark characterization levels that each measurement uses to compute results (see Figure 3- -34). See Customizing the Display on page 3- -138, Label the Waveform on page 3- -255, and Annotate Measurements on page 3- -155 for additional information.
Page 228: Using Automatic Measurements
Measuring Waveforms Measure Part of a Waveform. You can feed the entire waveform to a measurement or limit the measurement to a segment of the waveform. By default, the instrument takes each automatic measurement over the entire waveform record, but you can use measurement gates and zoom to localize each measurement to a section of a waveform (see To Localize a Measurement on page 3- -159).
Page 229: Figure 3- -35: High/Low Tracking Methods 3
Measuring Waveforms High/Low Method. The levels that the automatic measurement system derives as the High (Top) or Low (Bottom) for a waveform influence the fidelity of amplitude and aberration measurements. You can select among the modes the instrument provides for determining these levels. You can set the modes differently for each measurement: H Histogram.
Page 230: Figure 3- -36: Reference-Level Calculation Methods 3
Measuring Waveforms H Noise. (Optional on TDS7000 Series & TDS6000 Series) Tells the instru- ment if the noise measurement is at the top or the bottom of the eye diagram. H Signal Type. (Optional on TDS7000 Series & TDS6000 Series) Lets the instrument know if the signal to be measured is a pulse waveform or an eye diagram.
Page 231: To Take Automatic Measurements 3
Measuring Waveforms The High and Low levels from which the reference levels are calculated are the levels established using the selected Hi/Low method described on page 3- -151. To Take Automatic Use the procedure that follows to quickly take a measurement based on the Measurements default settings for High/Low and for reference-levels.
Page 232 Measuring Waveforms Overview To take automatic measurements (Cont.) Related control elements and resources Take From the Measurement setup control window, select the Ampl, Time, More, Histog, or Comm (optional on automatic TDS7000 Series & TDS6000 Series) tab that contains measurements the measurement that you want to take.
Page 233 Measuring Waveforms Overview To take automatic measurements (Cont.) Related control elements and resources Display From the Measurements setup control window, touch Setup Statistics. measurement statistics 10. From the Statistics control window, select Off, Mean, or All. Off. Turns off measurement statistics Mean.
Page 234 Measuring Waveforms Overview To take automatic measurements (Cont.) Related control elements and resources Show more 14. To select the amount of annotation detail shown with a measurement, from the menu bar touch Utilities, User annotation Preferences, and then select the Measurement tab to detail display the Annotation Type setup window.
Page 235 Measuring Waveforms Overview To take automatic measurements (Cont.) Related control elements and resources 18. To select how the instrument determines the base and top of the waveform, touch Determine Base, Top Form measurement Min-Max, Histogram, or Histogram mean. reference levels (Cont.) Min-max.
Page 236 Measuring Waveforms Overview To take automatic measurements (Cont.) Related control elements and resources Take a 21. From the Measurement setup control window, touch the Snapshot button (Comm Snapshot button if the Comm snapshot of tab is selected) to display a window of all single measurements waveform measurements or Comm measurements (optional on TDS7000 Series &...
Page 237: To Localize A Measurement
Measuring Waveforms To Localize a Use the procedure that follows to take a measurement over a segment of the Measurement waveform (otherwise, the entire waveform is included in the measurement). Overview To gate a measurement Related control elements and resources Prerequisites Set up as from last procedure.
Page 238: Taking Cursor Measurements
Measuring Waveforms Overview To gate a measurement (Cont.) Related control elements and resources Enable and To select how to control the gated area, touch Measurement Gating Cursor, Zoom 1, Zoom 2, Zoom 3, position the Zoom 4, or Off: gates Gate G1 Gate G2 Cursor.
Page 239: Table 3- 9: Cursor Functions (Types)
Measuring Waveforms You can measure time or amplitude or both. Vertical cursors measure time or distance on screen, horizontal cursors measure voltage or amplitude, and waveform and screen cursors measure both. Table 3- -9 expands on these definitions. Table 3- 9: Cursor functions (types) Cursor function Parameter measured Cursor readout...
Page 240: Using Cursors
Measuring Waveforms Using Cursors Cursor operation is easy, you move the cursors on screen and read the results in the cursor readouts. The following key points will help you use the cursors effectively: Cursor Types. The cursor types are described in Table 3- -9 on page 3- -161. There are two cursors displayed for all types, Cursor 1 and Cursor 2.
Page 241 Measuring Waveforms After you have selected the source from the Cursors Setup control window, you can operate the cursor from the front-panel knobs and buttons. Cursors Treat Sources Independently. Each cursor can take a different, indepen- dent source, with each source having its own amplitude scale. Consider the example presented by Figure 3- -37 on page 3- -162: H Cursor 1 is set to measure channel 3 (Ch3), which is set to 100 mV per division, so cursor readout v1 measures Ch3 relative to its ground as...
Page 242: Figure 3- -38: Components Determining Time Cursor Readout Values 3
Measuring Waveforms Horizontal reference = 0% First point in record Trigger point of cursor source Horizontal divisions Cursor readout (tn) = Delay × sec/div Cursor Figure 3- 38: Components determining Time cursor readout values Note that a vertical cursor readout includes and varies directly with the Time-to- First-Point component, which varies directly with the horizontal position set for the timebase.
Page 243: To Set The Cursor Sources
Measuring Waveforms Table 3- 10: Cursor units Cursors Standard units Readout names ∆V Horizontal volts, watts V1, V2, Τ2, ∆T, F1, F2, ∆F Vertical seconds, bits ∆V, ∆T Waveform, Screen volts, watts, seconds, bits V1, V2, T1, T2, If the V1 and V2 units do not match, the ∆V readout defaults to the units used by the V1 readout.
Page 244 Measuring Waveforms Overview To set the cursor sources (Cont.) Related control elements and resources Display the Push the CURSORS front-panel button, or from the toolbar, touch Cursors. cursor controls window Select the From the Cursor Source menu, select the channel, math, or reference tab and then the waveform to take cursor cursor measurements on (see right).
Page 245 Measuring Waveforms Overview To set the cursor sources (Cont.) Related control elements and resources Set cursor To change the cursor tracking mode, from the Cursor controls window select Setup. tracking Touch Track Mode Indep or Tracking: Indep. Makes each cursor positionable without regard to the position of the other cursor.
Page 246: Taking Histograms
Measuring Waveforms Taking Histograms The instrument can display histograms constructed from the selected waveform data. You can display both vertical (voltage) and horizontal (time) histograms, but only one at a time. Use histogram measurements to get statistical measure- ment data for a section of a waveform along one axis. Histogram measurements Horizontal histogram Figure 3- 39: Horizontal histogram view and measurement data...
Page 247: Using Histograms
Measuring Waveforms A histogram source can be any waveform (channel or math), including a reference waveform. In addition to using limit controls to set histogram box boundaries, you can also use standard Windows drag-and-drop to resize and reposition the histogram box. Histograms are not available in FastFrame, Record View XY, or Zoom modes.
Page 248 Measuring Waveforms Overview To start and reset histogram counting (Cont.) Related control elements and resources Set, display, and Select either the Source Ch, Math, or Ref tab and then select the waveform source for the histogram. reset histogram source and type Touch either Histogram Mode Horiz or Vert to start histogram counting and display the histogram data: Horiz.
Page 249: Histogram Measurements
Measuring Waveforms Overview To start and reset histogram counting (Cont.) Related control elements and resources Set histogram Touch Adjust Histogram Box Limits, and use the Top Limit, Bottom Limit, Left Limit, and Right Limit controls limit controls to set the size of the histogram box. The histogram box selects the section of the waveform used for histograms.
Page 250: To Compensate The Instrument
Measuring Waveforms To Compensate the To compensate the instrument so that it can take accurate measurements based on Instrument the ambient temperature, use the procedure that follows. Overview To compensate the instrument Related control elements and resources Prerequisites Instrument should be powered on. Allow a 20 minute warm up.
Page 251 Measuring Waveforms Overview To compensate the instrument (Cont.) Related control elements and resources For further Touch the Help button to access the online assistance. assistance See page 3- - 283 to learn about using online help. To Connect the Probe CSA7000 Series, TDS7000 Series, and TDS6404: To compensate or calibrate Calibration Fixture probes you must connect the Probe Calibration and Deskew Fixture to the...
Page 252: To Connect The Probe Calibration Fixture
Measuring Waveforms Overview To connect the probe calibration fixture (Cont.) Related control elements and resources Connect the Connect the instrument PROBE COMPENSATION output to either the A or B input using the included BNC fixture cable. The input that you use depends on the type of probes you have and the operation that you want to perform: Probe...
Page 253 Measuring Waveforms Overview To connect the probe calibration fixture (Cont.) Related control elements and resources Warning. To avoid personal injury, use care while connecting Connect the P6139A probe tips to the square pins on the fixture. The ends of the probe Connect the probe tip and the ground lead to the two square pins are sharp.
Page 254 Measuring Waveforms Overview To connect the probe calibration fixture (Cont.) Related control elements and resources P6249 or P7240 P6246, P6247, P6248, or P7330 Connect the probe + input to the signal pin Connect the probe tip to the short pin and the probe ground to and the probe - - input to the ground pin as the long pin as shown.
Page 255: To Calibrate Probes
Measuring Waveforms Overview To connect the probe calibration fixture (Cont.) Related control elements and resources For further To optimize the instrument gain and offset accuracy at the probe tip, see To Calibrate Probes on page 3- - 177. assistance To compensate (low-frequency) a passive probe, see To Compensate Passive Probes on page 3- - 180.
Page 256 Measuring Waveforms Overview To calibrate probes (Cont.) Related control elements and resources Optimize gain Connect the fixture to the instrument (see To Connect the Probe Calibration Fixture on page 3- - 173). and offset accuracy Remove the small jumper from the fixture. Connect one probe to the fixture.
Page 257 Measuring Waveforms Overview To calibrate probes (Cont.) Related control elements and resources Check the 11. From the toolbar, touch the VERT button to display the instrument Vertical setup control window. calibration status 12. Touch the Probe Cal button to display the vertical Probe Cal control window.
Page 258 See page 3- - 34 for acquisition setup and Power on the Instrument on page 1- - 9. Use adapter; If your probe is a 1 M Ohm probe without a TCA interface, connect it to the instrument using a CSA7404, TCA-1MEG adapter. CSA7154, TDS7404, TDS7254, and...
Page 259: To Compensate Passive Probes
Measuring Waveforms Overview To compensate passive probes (Cont.) Related control elements and resources For further Touch the Help button to access the online assistance. assistance See page 3- - 283 to learn about using online help. To Deskew Channels You can adjust a relative time delay for each channel. This lets you align the signals to compensate for signals that may come in from cables of differing lengths.
Page 260 Measuring Waveforms Overview To deskew channels (Cont.) Related control elements and resources Compensate Connect fixture to the instrument (see To Connect the Probe Calibration Fixture on page 3- - 173). CSA7000 probe timing Series, TDS7000 Series, and TDS6404: The jumper (deskew) must be installed.
Page 261 Measuring Waveforms Overview To deskew channels (Cont.) Related control elements and resources Compensate 12. Touch Deskew Time and use the multipurpose knobs or keypad to adjust the deskew time for that channel so probe timing that its signal aligns with the trigger position. (deskew) (Cont.) 13.
Page 262: Serial Mask Testing
Measuring Waveforms Serial Mask Testing The instrument provides a portfolio of masks (optional on the TDS7000 Series & TDS6000 Series) for verifying compliance to optical and electrical standards. You can verify circuit design performance and perform interface compliance testing. Mask testing results are reported live, providing real time feedback. Mask hits are highlighted on the display and accompanied by readouts indicating the number of waveforms tested, pass/fail results, and hit counts.
Page 263: Creating And Using Math Waveforms
Creating and Using Math Waveforms Once you have acquired waveforms or taken measurements on waveforms, the instrument can mathematically combine them to create a waveform that supports your data-analysis task. For example, you might have a waveform obscured by background noise. You can obtain a cleaner waveform by subtracting the background noise from your original waveform (note that the background noise you subtract must be identical to the noise in your signal).
Page 264: Defining Math Waveforms
Creating and Using Math Waveforms Normal waveform of an impulse response FFT waveform of the magnitude response FFT waveform of the phase response Figure 3- 41: Spectral analysis of an impulse Defining Math Waveforms This instrument supports mathematical combination and functional transforma- tions of waveforms it acquires.
Page 265 Creating and Using Math Waveforms You create math waveforms to support the analysis of your channel and reference waveforms. By combining and transforming source waveforms and other data into math waveforms, you can derive the data view that your application requires.
Page 266: Using Math
Creating and Using Math Waveforms H Measurements—Meas1 - - Meas8 are allowed in a math definition, but not measurement functions, such as rise (Ch1). CSA7000 Series & TDS7000 Series: H Fast Acquisition—Math is not allowed in Fast Acquisition mode. H Roll Mode—Math is updated when acquisition is stopped. Using Math The following topics provide details that can help you create the math waveform that best supports your data-analysis tasks.
Page 267 Creating and Using Math Waveforms Sources. Math Waveforms can incorporate the following sources: H Channel waveforms H Reference waveforms H Measurements (automated measurements) that measure channel, reference, histogram, or math waveforms H Math waveforms Source Dependencies. Math waveforms that include sources as operands are affected by updates to those sources: H Shifts in amplitude or DC level of input sources that cause the source to clip also clips the waveform data supplied to the math waveform.
Page 268 Creating and Using Math Waveforms The syntax that follows describes valid math expressions, which can be quite complex (in excess of 100 characters long): <MathWaveform> := <Expression> <Expression> := <UnaryExpression> | <BinaryExpression> <UnaryExpression> := <UnaryOperator> ( <Term> ) | <UnaryOperator> ( <Expression> ) <BinaryExpression>...
Page 269: Figure 3- -43: Derivative Math Waveform 3
Creating and Using Math Waveforms Derivative waveforms are used in the measurement of slew rate of amplifiers and in educational applications. You can create a derivative math waveform and then use it as a source for another derivative waveform. The result is the second derivative of the waveform that was first differentiated.
Page 270: Figure 3- -44: Peak-Peak Amplitude Measurement Of A Derivative Waveform 3
Creating and Using Math Waveforms Cursor Measurements. You can also use cursors to measure derivative wave- forms. Use the same procedure as is found under Take cursor measurements on page 3- -201. When using that procedure, note that the amplitude measurements on a derivative waveform will be in volts per second rather than in volt-seconds as is indicated for the integral waveform measured in the procedure.
Page 271 Creating and Using Math Waveforms Integral waveforms find use in the following applications: H Measuring power and energy, such as in switching power supplies H Characterizing mechanical transducers, as when integrating the output of an accelerometer to obtain velocity The integral math waveform, derived from the sampled waveform, is computed based on the following equation: Σ...
Page 272: To Define A Math Waveform 3
Creating and Using Math Waveforms To Define a Math Use the procedure that follows when defining a math waveform. Remember, you Waveform should first ensure that the sources you use exist. Acquisitions should be running or the channels should already be on, and reference waveform sources should contain saved waveforms, and so on.
Page 273 Creating and Using Math Waveforms Overview To define a math waveform (Cont.) Related control elements and resources To define/edit Use the control window at right to define a math expression. See Table 3- - 11 on page 3- - 188 for a math expression examples;...
Page 274 Creating and Using Math Waveforms Overview To define a math waveform (Cont.) Related control elements and resources Apply 10. Touch Avgs to display the Math Averaging control window. The controls in the window apply to the math averaging waveform defined by the expression. 11.
Page 275: Operations On Math Waveforms
Creating and Using Math Waveforms Operations on Math Waveforms This instrument supports many of the same operations for math waveforms that it provides for channel (live) and reference waveforms. For example, you can measure math waveforms with cursors. This section introduces these operations. H Vertical display scaling and positioning H Taking automatic measurements H Taking cursor measurements...
Page 276 Creating and Using Math Waveforms To Use Math Waveforms The procedure that follows demonstrates some common operations that you can perform on math waveforms: Overview To use math waveforms Related control elements and resources Prerequisites The Math waveform must be defined and displayed. See the reference listed at right.
Page 277: To Use Math Waveforms
Creating and Using Math Waveforms Overview To use math waveforms (Cont.) Related control elements and resources Set scale and Touch Position or Scale and use the multipurpose knobs or keypad to size and position the waveform on screen position as you want it. Note.
Page 278 Creating and Using Math Waveforms Overview To use math waveforms (Cont.) Related control elements and resources Take Touch the Meas button, select the Math tab, and touch a math button to choose a math waveform from Math1 - automatic Math4. (See right.) measurements Select a measurement (for more information, see Taking Automatic Measurements on page 3- - 148).
Page 279 Creating and Using Math Waveforms Overview To use math waveforms (Cont.) Related control elements and resources Take cursor You can also use cursors to measure math waveforms. Use the same procedures found under Taking Cursor Measure- measurements ments on page 3- - 160. From the toolbar, touch the Cursor button to display the cursors and the cursor control window.
Page 280: Defining Spectral Math Waveforms
Creating and Using Math Waveforms Defining Spectral Math Waveforms The math capabilities of the instrument include spectrum analysis of a wave- form. This section describes a spectral analyzer that allows you to control the analysis intuitively with time domain and frequency domain controls. These controls merge the time domain controls with the frequency domain controls to provide a complete spectral analyzer.
Page 281: Using Spectral Math Controls
Creating and Using Math Waveforms H Phase Versus Frequency: You can display phase data as a function of frequency in radians or degrees. You can zero the noise phase for magnitudes below a threshold level. Finally, you can select Phase unwrap and dθ/dω, group delay.
Page 282 Creating and Using Math Waveforms Using the time controls. The operation of the time domain controls for the spectral analyzer is summarized by the following rules: H Duration selects the time from the beginning to the end of the acquired waveform.
Page 283: Figure 3- -45: Duration And Resolution Control Effects 3
Creating and Using Math Waveforms Resolution 0.04 ms Adjust Duration via Adjust Duration via record length sample rate Record length 25 Duration 1 ms Record length 25 Resolution 0.04 ms Record length 50 Resolution 0.08 ms Duration 2 ms Duration 2 ms Resolution 0.02 ms Record length 100 Adjust Resolution...
Page 284: Figure 3- -46: Definition Of Gate Parameters 3
Creating and Using Math Waveforms Using the gate controls. Gating determines what portion of the acquired waveform is transformed into the frequency domain. The gate has a position and a width control. The gate position is the time in seconds from the trigger location to the center 50% position of the gate interval (see Figure 3- -46).
Page 285 Creating and Using Math Waveforms Using the Frequency Domain controls. The gated region of the source waveform is transformed by the spectral analyzer to a spectral waveform. This may be a phase or magnitude waveform. The horizontal units are always Hz. The vertical units depend on whether phase or magnitude is selected.
Page 286 Creating and Using Math Waveforms H The gate width, of the input data, affects the resolution bandwidth (RBW). Gate width has units of seconds. The resolution bandwidth directly controls the gate width, but the numerical value is entered in units of Hz. Therefore, the time domain gate markers move as you adjust the RBW control.
Page 287: Figure 3- -47: Effects Of Frequency Domain Control Adjustments 3
Creating and Using Math Waveforms Center frequency is 1.0 and span is 0.5. Gate width = 200 Increase the center frequency. Decrease the center frequency. Set center frequency back to 1 and decrease the Span. Decrease the Span again. Increase resolution by reducing Resolution BW (increasing the gate length).
Page 288 Creating and Using Math Waveforms Using the magnitude controls. Vertical units can be either linear or logarithmic. You can select these choices by touching the Math menu button. Then touch the Spectral Analysis Setup button. Then select the Mag tab. Then select the desired scale type from Linear, dB, or dBm.
Page 289: Figure 3- -48: Effects Of Adjusting The Reference Level 3
Creating and Using Math Waveforms 20 dB 15 dB 10 dB 0 dB Figure 3- 48: Effects of adjusting the reference level H Reference Level Offset. This changes the value of Ref in the equation for dB shown above. Unlike the Reference Level control, this control actually changes the output data values in the spectrum.
Page 290 Creating and Using Math Waveforms H Real and Imaginary Magnitudes. You may set the spectral analyzer to display the linear magnitude of the real data or the imaginary data in the spectrum. This is useful if you process the spectrum off line and transform it back into a time domain trace.
Page 291: Figure 3- -50: Example Of The Effects Of Setting The Phase Suppression Threshold 3
Creating and Using Math Waveforms H Suppression Threshold. Random noise in the spectrum may have phase values over the entire range. This could make the phase display unusable. However, you can set the suppression threshold control to a level in dB. The phase of any complex spectral points with a magnitude below this threshold is set to zero.
Page 292 Creating and Using Math Waveforms H Group Delay. When the phase spectrum is a continuous function of frequency, group delay may be computed. This is true of impulse response testing where an impulse is fed into the system and the spectrum of the response of the system output is computed.
Page 293: Figure 3- -51: Windowing The Time Domain Record 3
Creating and Using Math Waveforms In the time domain a window is a bell-shaped function equal in length to the gate duration. For most windows this function tapers to zero at both ends of the gate region. Before computation of the spectral transform, the window is multiplied, sample by sample, times the input data in the gate region.
Page 294: Table 3- 13: Window Characteristics
Creating and Using Math Waveforms H Choice of a window. Your choice of window function will depend on the input source characteristics which you want to observe and the characteris- tics of the window function. The window characteristics are shown in Table 3- -13.
Page 295: Figure 3- -52: Example Of Scallop Loss For A Hanning Window Without Zero Fill 3
Creating and Using Math Waveforms H Coherent gain. The gain factor normally associated with different window functions is correctly scaled into the magnitude spectrum output. Therefore, the magnitudes in the output spectrum do not change as different windows are selected. H Scallop Loss.
Page 296 Creating and Using Math Waveforms H Nearest Side Lobe. This is the difference in magnitude between the spectral lobe peak in the spectrum and the next side lobe that occurs due to energy leakage. Different windows have different leakage characteristics. The more narrow the resolution bandwidth of the window, the more leakage in the spectrum.
Page 297: Figure 3- -53: Time And Frequency Graphs For The Gaussian Window 3
Creating and Using Math Waveforms H Gaussian Window. This is the default window function (see Figure 3- -53). It is unique in that the time-domain shape of an exponential Gaussian function transforms into a Gaussian exponential shape in the frequency domain. This window provides optimal localization in both the time and the frequency domain.
Page 298: Figure 3- -54: Time And Frequency Domain Graphs For The Rectangular Window 3
Creating and Using Math Waveforms H Rectangular Window. This window is equal to unity (see Figure 3- -54). This means the data samples in the gate are not modified before input to the spectral analyzer. This window has the narrowest resolution bandwidth of any of the windows, but it also has the most spectral leakage and the highest side lobes.
Page 299: Figure 3- -55: Time And Frequency Graphs Of The Hamming Window 3
Creating and Using Math Waveforms H Hamming Window. This window is unique in that the time domain shape does not taper all the way to zero at the ends (see Figure 3- -55). This makes it a good choice if you wanted to process the real and imaginary parts of the spectrum off line and inverse transform it back to the time domain.
Page 300: Figure 3- -56: Time And Frequency Graphs For The Hanning Window 3
Creating and Using Math Waveforms H Hanning, Kaiser- -Bessel, and Blackman- -Harris Windows. These windows have various resolution bandwidths and scallop losses (see figures 3- -56, 3- -57, and 3- -58). Choose the one that best allows you to view the signal characteristics that you are interested in.
Page 301: Figure 3- -57: Time And Frequency Graphs For The Kaiser-Bessel Window 3
Creating and Using Math Waveforms Amplitude Time - - 67 dB side lobe - - 40 - - 80 Frequency bins Figure 3- 57: Time and frequency graphs for the Kaiser-Bessel window 3- 223 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 302: Figure 3- -58: Time And Frequency Graphs Of The Blackman-Harris Window 3
Creating and Using Math Waveforms Amplitude Time - - 92 dB side lobe - - 40 - - 80 Frequency bins Figure 3- 58: Time and frequency graphs of the Blackman-Harris window H Flattop2 Window. This window has the lowest scallop loss of any of the windows (see Figure 3- -59).
Page 303: Figure 3- -59: Time And Frequency Domain Graphs For The Flattop2 Window 3
Creating and Using Math Waveforms Amplitude Time - - 90 dB side lobe - - 40 - - 80 - - 120 Frequency bins Scallop loss is 0.0065 dB - - 0.05 - - 0.1 Frequency bins Figure 3- 59: Time and frequency domain graphs for the Flattop2 window 3- 225 CSA7000 Series, TDS7000 Series, &...
Page 304: Figure 3- -60: Tek Exponential Window In The Time And The Frequency Domains 3
H Tek Exponential Window. The Tek Exponential window (see Figure 3- -60) was invented at Tektronix. In the time domain, it is not a symmetrical bell shape as is the case with the other windows (see Figure 3- -60). Instead, it is exponential with a peak at the 20% position of the time domain gate.
Page 305: Recognizing Aliasing
Creating and Using Math Waveforms Effects of trigger jitter. The instrument acquisition system has a sample clock that is asynchronous with respect to the input signal. This means that from one acquisition to the next, samples may be in a different position on the waveform with respect to the trigger.
Page 306: Figure 3- -61: How Aliased Frequencies Appear In A Spectral Waveform 3
Creating and Using Math Waveforms Set the sample rate high enough so that the signals in the spectrum appear at their correct frequency as opposed to a lower aliased frequency value. Also, complex signal shapes that have many harmonics in them, such as a triangle or square wave, can appear to be OK in the time domain when in fact many of the harmonics in that signal are aliased.
Page 307 Creating and Using Math Waveforms Another way to observe aliasing, if you have a variable frequency signal source, is to adjust the frequency slowly while watching the spectral display. If some of the harmonics are aliased, you will see the harmonics decreasing in frequency when they should be increasing or vice versa.
Page 308: To Select A Predefined Spectral Math Waveform 3
Creating and Using Math Waveforms To Select a Predefined Use the procedure that follows to select a predefined spectral math waveform. Spectral Math Waveform Remember, a channel source should be acquiring or have acquired data. This source does not have to be displayed to be used. Overview To select a predefined spectral math waveform Related control elements and resources...
Page 309: To Define A Spectral Math Waveform 3
Creating and Using Math Waveforms To Define a Spectral Math Use the procedure that follows when defining a spectral math waveform. Waveform Remember, you should first ensure that the sources you use exist. Channel sources should be acquiring or have acquired data. These sources do not have to be displayed to be used.
Page 310 Creating and Using Math Waveforms Overview To define a spectral math waveform (Cont.) Related control elements and resources Display the To display your spectral waveform, touch either the spectral Apply or the OK button. waveform 3- 232 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 311 Creating and Using Math Waveforms Overview To define a spectral math waveform (Cont.) Related control elements and resources Set the Select the Mag tab. magnitude 10. To select the vertical scale factor, touch dB, dBm, or scale Linear. The units will be dB, W, A, V, or whatever units are attached to the spectral analyzer input waveform.
Page 312: To Define A Spectral Math Waveform
Creating and Using Math Waveforms Overview To define a spectral math waveform (Cont.) Related control elements and resources Set the phase 13. Select the Phase tab. scale 14. To select the vertical scale factor, touch Degree, Radian, or GroupDelay: Degree sets the phase units to degrees. Phase is displayed using degrees as the scale, where degrees wrap from - - 180_ to +180_.
Page 313 Creating and Using Math Waveforms Overview To define a spectral math waveform (Cont.) Related control elements and resources Set time and 17. Touch the Control tab. frequency 18. To allow changing time and frequency domain controls domain control for one math waveform to change the same controls for tracking another math waveform, touch the Track Time/Freq Domain Controls buttons to toggle them on or off.
Page 314 Creating and Using Math Waveforms Overview To define a spectral math waveform (Cont.) Related control elements and resources Set the The spectral analyzer center frequency and the frequency frequency span must be within the bandwidth setting determined by the sample rate. domain controls See Figure 3- - 47 on page 3- - 209 to see how a signal consisting of two sine waves looks on screen as the spectral...
Page 315 Creating and Using Math Waveforms Overview To define a spectral math waveform (Cont.) Related control elements and resources Set the time Time domain controls of the spectral analyzer determine the domain controls sample rate and record length of the acquisition. Front panel controls also affect the sample rate and record length, but not in the same way.
Page 316 Creating and Using Math Waveforms Overview To define a spectral math waveform (Cont.) Related control elements and resources Take cursor 27. From the toolbar, touch the Cursor button to display the measurements cursors and the cursor control window. 28. Select the Math tab and touch the numbered button for the spectral waveform that you want to measure.
Page 317: Spectral Math Example
Overview Spectral math example Control elements and resources Connect the probe compensation signal to CH 1 through Install the test CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604 & TDS6404 hookup a suitable cable and adapter. Press DEFAULT SETUP. Press AUTOSET.
Page 318 Creating and Using Math Waveforms Overview Spectral math example (cont.) Control elements and resources Display the From the button bar, touch Vert, and select the waveform Chan 1 tab. Touch Offset, and using the multipurpose knobs or keypad, set the offset to 900 mV and the Ch1 Scale to 200 mV.
Page 319 Creating and Using Math Waveforms Overview Spectral math example (cont.) Control elements and resources Display the Window Type affects the shape of the spectral spectral math analyzer response in the frequency domain; that is, waveform the ability to resolve frequency in the output (Cont.) spectrum.
Page 320 Creating and Using Math Waveforms Overview Spectral math example (cont.) Control elements and resources Set up the 10. From the button bar, touch Cursors. cursors 11. To assign the cursors to the spectral analysis math waveform, touch the Cursor Source Math tab, and touch the Math 1 button.
Page 321 Creating and Using Math Waveforms Overview Spectral math example (cont.) Control elements and resources Measure the 14. Use the multipurpose knobs or keypad to set the Curs1 test results Pos to 3.0 kHz and the Curs2 Pos to 11.0 kHz. In this example, the cursors are now on the third and eleventh harmonic of the probe compensation signal.
Page 322 Creating and Using Math Waveforms Overview Spectral math example (cont.) Control elements and resources For more 16. For additional information on setting up and using information spectral math, see Defining Spectral Math Waveforms starting on page 3- - 202. 3- 244 CSA7000 Series, TDS7000 Series, &...
Page 323: Data Input/Output
Data Input/Output This section describes the input and output capabilities of your instrument. Specifically, it covers: H Saving and Recalling a Setup on page 3- -245 H Saving and Recalling Waveforms on page 3- -253 H Exporting and Copying Waveforms on page 3- -262, including exporting and copying of images, waveforms, measurements, and histograms H Printing Waveforms on page 3- -277 H Remote Communication on page 3- -282...
Page 324 Data Input/Output If you do not have a keyboard connected, you can still enter comments and name setup files. The Save and Recall Setup windows include the Virtual Keyboard. When you touch or click a setup name, the instrument displays a keyboard on screen that you can use with your mouse or the touch screen to enter the setup-path name, setup-file name, and comment.
Page 325: Figure 3- -62: Auto-Increment File Name Feature 3
Data Input/Output Avoiding Setup/Waveform Mismatches. Saved setups may contain settings inappropriate for waveforms currently in your instrument. For example, if you save a setup that displays a math waveform that is the inverse of reference 1, when you recall the setup, if the reference is empty, the math and reference waveforms are not displayed.
Page 326: To Save Your Setup
Data Input/Output If Count reaches 999, it is suggested that you change the base file name to Basefilename1 (for example, Risetime1) on the next save. Your next file will then be saved as Risetime1000.ext. To Save Your Setup Use the procedure that follows to save a setup to one of ten internal locations, the instrument hard disk, a floppy disk, or third-party storage device.
Page 327 Data Input/Output Overview To save your setup (Cont.) Control elements and resources Name your Name your setup file by either: setup Accepting the default name (User) that appears in the name field. Double-clicking in the name field and using the keyboard window to enter a new name, replacing the default file name.
Page 328: Using Auto-Increment File Name 3
Data Input/Output Overview To save your setup (Cont.) Control elements and resources Name your Name your setup file by doing one of the following setup steps: Accepting the default file name that appears in the File name: field. Clicking in the File name field and typing a new name, replacing the default file name.
Page 329: To Recall Your Setup
Data Input/Output To Recall Your Setup Use the procedure that follows to recall a setup to the instrument. Remember that recalling a setup replaces the existing setup, which is lost. Overview To recall your setup Control elements and resources Prerequisites 1. The instrument must be powered up.
Page 330 Data Input/Output Overview To recall your setup (Cont.) Control elements and resources Select your If not selected, select *.set in the Save as type of file to setup include in the file listing. (Setup files are always type *.set.) Note. Only change the type if you want to temporarily see other types of files in the current directory.
Page 331: Saving And Recalling Waveforms
Data Input/Output Saving and Recalling Waveforms This instrument can save any number of waveforms, limited only by the space you have to store them. By saving a waveform, you can recall it at a later time for comparison, evalua- tion, and documentation. This capability is helpful when you want to: H Recall a waveform for further evaluation or comparison with other wave- forms.
Page 332: To Save Your Waveform
Data Input/Output To Save Your Waveform Use the procedure that follows to save a waveform or waveforms to a reference location, the instrument hard disk, CD-RW disk, a floppy disk, or third party storage device. Overview To save a waveform Control elements and resources Prerequisites 1.
Page 333 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Label the If you want to label the waveform, touch Label, and use waveform your keyboard or the pop-up keyboard to create a label for your waveform. You can label any channel, math, or reference waveform and position the label relative to the display edge and the vertical position of the waveform using the Label control window:...
Page 334 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Save the To save the waveform to a file, touch the Save Wfm to waveform to a File Save button, or to save all active waveforms to file files, touch the Save all Wfms to Files Save button.
Page 335: To Recall Your Waveform
Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Save your 10. Click the Save button to save the waveform file or waveform reference. To cancel without saving, click the Cancel button. For further 11. For more help on saving waveforms, touch the Help assistance button in the toolbar to access the contextual online help.
Page 336 Data Input/Output Overview To recall your waveform Control elements and resources Prerequisites 1. The instrument must be powered up. You must have access to a waveform saved by the instrument. See Powering On the Instrument on page 1- - 9. Display the From the tool-bar, touch Refs, and then select the Ref 1 reference...
Page 337 Data Input/Output Overview To recall your waveform (Cont.) Control elements and resources Select your If not selected, select *.wfm in the Files of type field to waveform force the file listing to only include these types. Use *.wfm for waveforms. Note.
Page 338: To Clear References
Data Input/Output To Clear References You can clear individual references of data or delete waveform files. If you are sure you do not want the data a reference waveform contains, use the procedures that follow to clear it. To clear all references and setups, use Tek Secure. Overview To clear references Control elements and resources...
Page 339 Data Input/Output Overview To clear references (Cont.) Control elements and resources Find the file Use the Look in: drop-down list and buttons (see right) directory to navigate to the directory of the file to delete. Find your file 6. Select the file type in the Files of type drop-down list to force the file listing to only include these types.
Page 340: Exporting And Copying Waveforms
Data Input/Output Exporting and Copying Waveforms This instrument also supports export of waveform data to a file. The instrument can export waveforms, images, and measurements in several formats. You can also copy waveform data to the clipboard for use with other applications. By exporting a waveform, you can use it with other analysis tools, such as spreadsheets or math-analysis applications.
Page 341: To Export Your Waveform
Data Input/Output H MathCad creates files (.DAT) in a format usable by MathCad. Note that the MathCad file is an ASCII file, the first four values of which contain header information: H The first header value holds the record length. H The second header value holds time, in seconds, between samples.
Page 342 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Select setup for From the menu bar, select File, and then select Export export Setup to display the Export Setup control window. 3- 264 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 343 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Setup to export Select the Images tab to display the Images control images window. In the Palette window, select Color, GrayScale, or Black & White for the color palette of your exported images. In the View window, select whether you want to export the Full Screen or Graticules Only.
Page 344 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Setup to export 10. Select the Waveforms tab to display the Waveforms waveforms control window. 11. Touch Data Destination, and select the destination (format) of your exported waveform file (see File Formats on page 3- - 262 for information on the available formats).
Page 345 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources 15. In the Waveform data range window, select the data to include in the exported files: Samples to enter the data range of the data to include in the exported files Save Samples between Cursors to include data between the cursors in the exported files Save Samples in Zoom Area to include data in...
Page 346 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Setup to export 17. Select the Measurements tab to display the Measure- measurements ments control window. 18. Touch Data Format, and select the data format (text or numeric) from the list. 19.
Page 347 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Export your file 21. To export the file, from the application menu bar, select Export. You can also attach the front-panel PRINT button to Export. Then, pressing the PRINT button will export your file.
Page 348 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Edit path and file name Name the file 24. Select the file type in the Save as type drop-down list to force the file listing to only include these types. Use *.dat for waveforms.
Page 349: To Use An Exported Waveform 3
Data Input/Output To Use an How you use the exported waveform depends on your application. The following Exported Waveform example is a simple application; the procedure is general and may require adapting for your spreadsheet or other data-analysis tool. Overview To use exported waveforms Control elements and resources Prerequisites 1.
Page 350 Data Input/Output Overview To use exported waveforms (Cont.) Control elements and resources Begin your Click on the row or column number to select the entire chart row or column containing your imported waveform values (see right). Select the Chart button from the toolbar (see right) or from the Insert menu.
Page 351: To Copy Your Waveform
Data Input/Output Overview To use exported waveforms (Cont.) Control elements and resources For further For more help on exporting waveforms, touch the Help button in the window to access contextual online assistance help. See page 3- - 283 to learn about accessing online help. To Copy Your Waveform Use the procedure that follows to copy a waveform to the clipboard.
Page 352 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Setup to copy Select the Images tab to display the Images control images window. In the Palette window, select Color, GrayScale, or Black & White for the color palette of your copied images. In the View window, select whether you want to copy the Full Screen or Graticules Only.
Page 353 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources Setup to copy Touch Source Waveform, and select the source of the waveforms waveform (a channel, math, or reference waveform) to (Cont.) copy from the list. 10. If you want waveform scale factors included in your Mathcad files, click Include waveform scale factors.
Page 354 Data Input/Output Overview To save a waveform (Cont.) Control elements and resources 13. CSA7000 Series & TDS7000 Series: If using FastFrame, select the frame range to include in the copied files: All Frames to include all frames in the copied files Frames to enter a range of frames to include in the copied files Setup to copy...
Page 355: Printing Waveforms
Data Input/Output Printing Waveforms You can print the display screen, including any waveforms displayed. Before you can print, you must install and set up your printer. Consult the instructions that come with your printer. Also for printer setup instructions, you can display Windows help and access its section on printers.
Page 356: To Set Up The Page
Data Input/Output To Set Up the Page To set the format of the printed page, from the application menu bar select the File menu, and then select Page Setup. The instrument displays the Page Setup window shown in Figure 3- -65. H Paper: select the paper size and source from the drop-down lists.
Page 357: To Preview The Page
Data Input/Output Figure 3- 65: Page setup window To Preview the Page To preview your printout, from the application menu bar select the File menu, and then select Print Preview. The instrument displays the standard MS Windows 2000 Print Preview window shown in Figure 3- -66. Access the Windows help system for more information.
Page 358: To Print Using Print Screen 3
Data Input/Output Figure 3- 66: Print preview window To Print Using Pressing the Windows Print Screen key copies the currently displayed bitmap to Print Screen the clipboard. This bitmap does not include the instrument waveforms or graticule. The waveforms and graticule are displayed by the graphics adapter outside of normal Windows mechanisms.
Page 359: To Date/Time Stamp Hardcopies
Data Input/Output To Date/Time Stamp You can display the current date and time on screen so that they appear on Hardcopies hardcopies that you print. To date and time stamp your hardcopy, do the following steps: Overview To date/time stamp hardcopies Control elements and resources Prerequisites 1.
Page 360: Remote Communication
Data Input/Output Remote Communication Remote communication is performed through the GPIB interface. Consult the online Programmer Guide for help with establishing remote communication and control of the instrument. To access the Programmer Guide, locate the Product Software CD that was shipped with the instrument.
Page 361: Accessing Online Help
Accessing Online Help This manual represents only part of the user assistance available to you — the online help system, integrated as part of the instrument user interface, provides quick-to-access support for operating this instrument. This section describes the help system and how to access it. This instrument provides the following help resources online: H Help Topics H Programmers Guide...
Page 362: How To Use Online Help
Accessing Online Help How to Use Online Help Use the procedure steps that follow to access contextual help and to learn how to search the help system for more information. Overview To use online help Control elements and resources Prerequisites The instrument must be powered up and running.
Page 363 Accessing Online Help Overview To use online help (Cont.) Control elements and resources Touch the button Minimize in a help window to move the help out of the way so you can operate the instrument. Touch the Restore Help button to see the last help topic again.
Page 364 Accessing Online Help Overview To use online help (Cont.) Control elements and resources To dig deeper You can search for help using the usual methods available for help on a PC: From the menu bar, select Help, and then select Contents and Index. See right. From the online help finder (see below), choose from the three tabs.
Page 365 Accessing Online Help Overview To use online help (Cont.) Control elements and resources To enable If you cannot find the information in the Contents or Index tabs of the online finder, you may want to enable full-text full text search: From the application menu bar, select search Help, and then select Contents and Index.
Page 366 Accessing Online Help 3- 288 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 367: Appendix A: Specifications
Appendix A: Specifications This chapter contains the specifications for the CSA7000 Series Communica- tions Signal Analyzers, the TDS7000 series Digital Phosphor Oscilloscopes, and TDS6000 Series Digital Storage Oscilloscopes. All specifications are guaranteed unless labeled “typical.” Typical specifications are provided for your conve- nience but are not guaranteed.
Page 368: Product And Feature Description
Product and Feature Description Your instrument is shown in Table A- -1. Table A- 1: Instrument models Number of Maximum sample channels rate (real time) Model Bandwidth CSA7404 4 GHz 20 GS/s CSA7154 1.5 GHz 20 GS/s TDS7404 4 GHz 20 GS/s TDS7254 2.5 GHz...
Page 369: Display Features
Appendix A: Specifications Acquisition Control. Acquire continuously or set up to capture single shot acquisitions. Enable or disable optional acquisition features such as equivalent time or roll mode. CSA7000 Series & TDS7000 Series only: Use Fast Frame acquisition to capture and time stamp many events in a rapid sequence. Horizontal Delay.
Page 370: Measurement Features
Appendix A: Specifications Digital Phosphor. CSA7000 Series & TDS7000 Series only: The instrument can clearly display intensity modulation in your signals. The instrument automati- cally overlays subsequent acquisitions and then decays them to simulate the writing and decay of the phosphor in an analog instrument CRT. The feature results in an intensity-graded or color-graded waveform display that shows the information in the intensity modulation.
Page 371: Convenience Features
Appendix A: Specifications Serial Triggers. Optional on TDS7000 Series & TDS6000 Series, not available on TDS7104 and TDS7054. Use serial triggers to trigger on serial pattern data. Recovered Clock and Data Triggers. Use recovered clock and data internally to trigger your waveforms. They are also available externally (CSA7000 Series only).
Page 372: Specification Tables
Input channels Four Input coupling Channel input is disconnected from input termination when using GND coupling. DC 50 Ω and GND CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404 TDS7104 & TDS7054 DC, AC, and GND nInput impedance, DC coupled 50 Ω...
Page 373 Appendix A: Specifications Table A- 2: Channel input and vertical specifications (Cont.) Characteristic Description VSWR, typical CSA7404, CSA7154, TDS7404, 1.5 for f <1 GHz TDS7254, & TDS7154 1.7 for f <2.5 GHz 2.0 for f <4 GHz ≤ 1.3:1 from DC to 500 MHz, TDS7104 &...
Page 374 (2.5% +(2% × | net offset/10V | )) n DC voltage measurement accuracy Measurement type DC accuracy (in volts) CSA7404, CSA7154, TDS7404, TDS7254, & TDS7154 ±[(2.5% +(6% × | net offset/1V | )) × Average acquisition mode (≥16 aver- 2 mV/div to 3.98 mV/div...
Page 375 Appendix A: Specifications Table A- 2: Channel input and vertical specifications (Cont.) Characteristic Description DC voltage measurement accuracy, TDS7104 & Measurement type DC accuracy (in volts) TDS7054 ±[(1.0% × | reading - - net offset | ) + Sample acquisition mode, Absolute measurement of any waveform offset accuracy + (0.13 div ×...
Page 376 DC 50 Ω coupling, Full bandwidth, operating ambient 15 °C to 30 °C (59 °F to Analog bandwidth with P7240 active probe or 86 °F), derated by 20 MHz/°C above 30 °C (86 °F) TCA-BNC adapter, typical CSA7404 TDS7404 TDS6604 & TDS6404 CSA7404, TDS7404, TDS6604, & TDS6404 SCALE range Bandwidth 2 mV/div to 3.9 mV/div...
Page 377 TDS7104: DC to 1 GHz Analog bandwidth limit, typical Selectable between 20 MHz, 250 MHz, or Full TDS7104 & TDS7054 Calculated rise time, typical TDS6604 70 ps CSA7404, TDS7404, & TDS6404 100 ps TDS7254 160 ps CSA7154 & TDS7154 240 ps A- 11...
Page 378 Appendix A: Specifications Table A- 2: Channel input and vertical specifications (Cont.) Characteristic Description DC 50 Ω coupling, bandwidth limit set to Full TDS7104 & TDS7054 SCALE range Rise time 1 mV/div to 1.99 mV/div TDS7054: 890 ps TDS7104: 800 ps 2 mV/div to 4.98 mV/div TDS7054: 800 ps TDS7104: 667 ps...
Page 379 Table A- 2: Channel input and vertical specifications (Cont.) Characteristic Description Step response settling errors, typical Full bandwidth CSA7404, CSA7154, TDS7404, Full bandwidth TDS7254 & TDS7154 TDS7254, & TDS7154 SCALE range and step amplitude Settling error at time after step 20 ns: ≤...
Page 380 Table A- 2: Channel input and vertical specifications (Cont.) Characteristic Description Pulse response, peak detect, or envelope mode Sample rate setting Minimum pulse width CSA7404, CSA7154, TDS7404, 2.5 GS/s or less 400 ps TDS7254, & TDS7154 TDS6604 & TDS6404 2.5 GS/s or less 50 ps ±...
Page 381 Net offset is the nominal voltage that must be applied to the channel to bring the trace to center screen. Net offset = offset - - ( position × volts/division). Offset accuracy is the accuracy of this voltage level. CSA7404, CSA7154, TDS7404, SCALE range Offset accuracy TDS7254 &...
Page 382 Effective bits 1 MHz 6.0 bits 1 GHz 5.7 bits 1.5 GHz 5.5 bits 2 GHz, CSA7404, TDS7404, & TDS7254 5.3 bits only 2.5 GHz, CSA7404, TDS7404, & 5.2 bits TDS7254 only 3 GHz, CSA7404 & TDS7404 only 5.1 bits 4 GHz, CSA7404 &...
Page 383 ≤ 50 ps between any two channels with the same scale and coupling settings TDS7104 & TDS7054 n Channel-to-channel crosstalk ≥15:1 at rated bandwidth (CSA7404, TDS7404 & TDS7254 only), and CSA7404, CSA7154, TDS7404, ≥ 80:1 at ≤1.5 GHz or the rated bandwidth, whichever is less.
Page 384: Table A- 3: Horizontal And Acquisition System Specifications
Table A- 3: Horizontal and acquisition system specifications Characteristic Description Real-time sample rate range Number of channels acquired Sample rate range CSA7404, CSA7154, 5 S/s to 20GS/s TDS7404 TDS7254 & TDS7404, TDS7254, & 5 S/s to 10GS/s TDS7154 3 or 4...
Page 385 Depends on the number of active channels and the record length options installed. Maximum record length is less in serial trigger mode CSA7404, CSA7154, Depends on the number of active channels and the record length options installed. TDS7404, TDS7254, TDS7154, Maximum record length is less in serial trigger mode TDS7104, &...
Page 386 Table A- 3: Horizontal and acquisition system specifications (Cont.) Characteristic Description Maximum record length, HiRes mode, sample 2,000,000 points (1, 2, 3, or 4 channels) rate ≤1.25 GS/s CSA7404, CSA7154, TDS7404, TDS7254, & TDS7154 Seconds/division range CSA7404, CSA7154, 50 ps/div to 10 s/div TDS7404, TDS7254,TDS7154, TDS6604, &...
Page 387 Table A- 3: Horizontal and acquisition system specifications (Cont.) Characteristic Description Frame length and maximum number of frames CSA7404, CSA7154, TDS7404, Maximum number of frames for Sample or Peak Detect acquisition mode, TDS7254, &TDS7154 depending on memory option installed Frame length...
Page 388 Up to 130 waveforms per second, Fast Acquisition off n Internal time-base reference frequency 2.5 ppm over any ≥100 ms interval. Aging <1 ppm per year 10 MHz CSA7404, CSA7154, TDS7404, TDS7254, TDS7154, TDS6604, & TDS6404 n Long term sample rate and delay time accuracy ±2.5 ppm over any ≥100 ms interval.
Page 389 Appendix A: Specifications Table A- 3: Horizontal and acquisition system specifications (Cont.) Characteristic Description Time base delay time range CSA7404, CSA7154, 16 ns to 250 s TDS7404, TDS7254,TDS7154, TDS6604, & TDS6404 TDS7104 & TDS7054 0 s to 1000 s n Delta time measurement accuracy CSA7404, CSA7154, For a single channel, with signal amplitude >...
Page 390: Table A- 4: Trigger Specifications
Appendix A: Specifications Table A- 4: Trigger specifications Characteristic Description Trigger jitter, typical CSA7404, CSA7154, TDS7404, 6 ps rms for low frequency, fast rise time signal TDS7254, & TDS7154 σ = 8 ps TDS7104 & TDS7054 TDS6604 & TDS6404 Internal: 7ps rms for low frequency square wave with 5 div amplitude, fast rise time <200 ps, repetition rate <10 kHz...
Page 391 Appendix A: Specifications Table A- 4: Trigger specifications (Cont.) Characteristic Description Edge trigger sensitivity, typical All sources, for vertical scale settings ≥10 mV/div and ≤1 V/div CSA7404, CSA7154, TDS7404, TDS7254 TDS7154 TDS7254, TDS7154, Trigger coupling Sensitivity TDS6604, & TDS6404 TDS6604, & TDS6404 NOISE REJ 3×the DC-coupled limits...
Page 392 Appendix A: Specifications Table A- 4: Trigger specifications (Cont.) Characteristic Description For vertical scale settings ≥10 mV/div and ≤1 V/div Advanced trigger sensitivity, typical Advanced triggers: 1.0 div, from DC to 500 MHz at the TekConnect connector For vertical scale settings ≥10 mV/div and ≤1 V/div Advanced trigger timing Minimum recognizable event width or Minimum re-arm time to recognize next...
Page 393 ±(20% of setting + 0.5 ns) 1 ns to 500 ns ±(0.01% of setting + 100 ns) 520 ns to 1 s Trigger level or threshold range CSA7404, CSA7154, TDS7404, Trigger Source Sensitivity TDS7254, TDS7154, TDS6604, & TDS6404 ±12 divisions from center of screen Any channel ±8 V (±4.5 V for TDS6000 Series)
Page 394 Characteristic Description Trigger level or threshold accuracy, typical Edge trigger, DC coupling, for signals having rise and fall times ≤1 ns CSA7404, CSA7154, TDS7404, TDS7254, & TDS7154 Trigger Source Accuracy ± [(2% × | setting - - net offset | ) + Any channel (0.35 div ×...
Page 395 Edge trigger, DC coupling, for signals having a slew rate at the trigger point of ≥ 0.5 Trigger position error, typical division/ns Acquisition mode Error ± (1 waveform interval + 200 ps) CSA7404, CSA7154, TDS7404, Sample, Average TDS7254, TDS7154, TDS6604, & TDS6404 ± (2 waveform interval + 200 ps) Peak Detect, Envelope ±...
Page 396: Table A- 5: Display Specifications
Appendix A: Specifications Table A- 4: Serial Trigger specifications (optional on TDS7000 Series & TDS6000 Series) (Cont.) Characteristic Description <0.25% bit period + 9 ps rms for PRBS data patterns. Clock recovery jitter, typical <0.25% bit period + 8 ps rms for repeating 0011 data patterns. Clock recovery tracking/acquisition range, typical ±5% of requested baud Minimum signal amplitude needed for clock 1 division p-p up to 1.25 GBd...
Page 397: Table A- 6: Input/Output Port Specifications
Appendix A: Specifications Table A- 6: Input/output port specifications Characteristic Description Rear-panel I/O ports Ports located on the rear panel SVGA video port Upper video port, DB-15 female connector, connect a second monitor to use dual-monitor display mode, supports Basic requirements of PC99 specifications Scope VGA video port Lower video port, DB-15 female connector, 31.6 kHz sync, EIA RS-343A...
Page 398 1 kHz square wave. This voltage varies from - - 10 V to +10 V with a source impedance less than 1 W and short circuit current as high as 300 mA. CSA7404, CSA7154, Output voltage Frequency...
Page 399 Appendix A: Specifications Table A- 6: Input/output port specifications (Cont.) Characteristic Description Auxiliary Output pulse width, typical Pulse width varies, 1 s minimum External reference Run SPC whenever the external reference is more than 2000 ppm different than the internal reference or the reference at which SPC was last run. Frequency range 9.8 MHz to 10.2 MHz nInput sensitivity...
Page 400: Table A- -7: O/E Converter (Csa7000 Series Only
±((2% +(2% × net offset/1 mW)) ×j reading j +0.16 div × W/div) Excludes normal variations due to fiber connection to the front of the instrument nOptical Channel Bandwidth (includes O/E, 5 _C to 25 _C: O/E-to-TekConnect adaptor, and instrument) CSA7404 2.4 GHz CSA7154 1.6 GHz <4 mV/div: ±(4.5% + (6% ×...
Page 401 Appendix A: Specifications Table A- 7: O/E converter (CSA7000 Series only) (Cont.) Characteristic Description nMaximum noise output, rms CSA7404: 1310 nm and 1550 nm ≤1.1 W + (6.5% of W/div setting) 850 nm ≤2.1 W + (6.5% of W/div setting) 780 nm ≤2.6 W + (6.5% of W/div setting)
Page 402: Table A- 8: Data Storage Specifications
Appendix A: Specifications Table A- 7: O/E converter (CSA7000 Series only) (Cont.) Characteristic Description Smallest average power for mask test (sensitivity), 1310 nm and 1550 nm: typical 40 W peak-to-peak. 20 W (- - 17 dBm) average power assuming 50% average duty cycle 780 nm and 850 nm: 80 W peak-to-peak.
Page 403: Table A- 9: Power Source Specifications
0.25 in × 1.25 in size UL198G and CSA C22.2, No. 59, fast acting: 8 A, 250 V (Tektronix part number 159-0046-00, Bussman ABC-8, Littelfuse 314008) 5 mm × 20 mm size IEC127, sheet 1, fast acting “F”, high breaking capacity: 6.3 A, 250 V (Bussman GDA 6.3, Littelfuse 21606.3)
Page 404 Appendix A: Specifications Table A- 10: Mechanical specifications (Cont.) Characteristic Description Dimensions Benchtop configuration With front cover Without front cover 278 mm (10.95 in) height 277 mm (10.9 in) height 330 mm (13 in) with feet extended 330 mm (13 in) with feet extended 455 mm (17.9 in) width 455 mm (17.9 in) width 435 mm (17.13 in) depth...
Page 405 Appendix A: Specifications Table A- 11: Environmental specifications (Cont.) Characteristic Description 20% to 80% relative humidity with a maximum wet bulb temperature of +29 °C Humidity, operating (+84 °F) at or below +50 °C (+122 °F), noncondensing Upper limit derated to 25% relative humidity at +50 °C (+122 °F) Nonoperating With no diskette in floppy disk drive 5% to 90% relative humidity with a maximum wet bulb temperature of +29 °C...
Page 406 Power Harmonic Current Emissions If interconnect cables are used, they must be low-EMI shielded cables such as the following Tektronix part numbers or their equivalents: 012-0991-01, 012-0991-02 or 012-0991-03 GPIB Cable; 012-1213-00 (or CA part number 0294-9) RS-232 Cable; 012-1214-00 Centronics Cable;...
Page 407 Appendix A: Specifications Table A- 12: Certifications and compliances (Cont.) Category Standards or description EC Declaration of Conformity - - Compliance was demonstrated to the following specification as listed in the Official Journal of the Low Voltage European Union: Low Voltage Directive 73/23/EEC, amended by 93/68/EEC EN 61010-1/A2:1995 Safety requirements for electrical equipment for measurement control and laboratory use.
Page 408 Appendix A: Specifications A- 42 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 409: Appendix B: Automatic Measurements Supported
Appendix B: Automatic Measurements Supported This appendix provides a list of all supported measurements and their defini- tions. An illustration showing the levels used to take measurements is also included. Table B- 1: Supported measurements and their definition Name Definition Amplitude Voltage measurement.
Page 410 Appendix B: Automatic Measurements Supported Table B- 1: Supported measurements and their definition (Cont.) Name Definition The value used as 0% whenever High Ref, Mid Ref, and Low Ref values are needed (as in fall time and rise time measurements). May be calculated using either the min/max or the histogram method.
Page 411 Appendix B: Automatic Measurements Supported Table B- 1: Supported measurements and their definition (Cont.) Name Definition Positive Overshoot Voltage measurement over the entire waveform or gated region. Max–High PositiveOvershoot = × 100% Amplitude Positive Width Timing measurement of the first pulse in the waveform or gated region. The distance (time) between MidRef (default 50%) amplitude points of a positive pulse.
Page 412 Appendix B: Automatic Measurements Supported Table B- 1: Mask measurements and their definition (optional on TDS7000 Series & TDS6000 Series) Name Definition Ext Ratio The ratio of eye top to base. Ext Ratio = PTop /PBase mean mean Extinction Ratio % The ratio of eye base to top in %.
Page 413: Levels Used In Taking Amplitude, Timing, And Area Measurements
Appendix B: Automatic Measurements Supported Table B- 1: Mask measurements and their definition (optional on TDS7000 Series & TDS6000 Series) (Cont.) Name Definition S/N Ratio Ratio of the signal amplitude to the noise of the top or base of the signal as specified by the user.
Page 414: Levels Used In Taking Eye Measurements (Optional On Tds7000 Series & Tds6000 Series)
Appendix B: Automatic Measurements Supported High. The value used as the 100% level in amplitude measurements, such as Peak and +Overshoot. High is also used to help derive the HighRef, MidRef, MidRef2, and LowRef values. Low. The value used as the 0% level in amplitude measurements, such as Peak and - -Overshoot.
Page 415 Appendix B: Automatic Measurements Supported PTop TCross TCross PCross PCross PBase Aperture Figure B- 2: Eye-diagram and optical values P Values The P values include the mean and standard deviation of the vertical location of PTop and PBase. These areas are used with a specified sample size to statisti- cally measure the following values: H PTop , the mean value of PTop...
Page 416: Dcd Values
Appendix B: Automatic Measurements Supported T1 Values The T1 values are vertical and horizontal values associated with the leftmost crossing point. These areas are used to establish the following directions: H TCross1 , the horizontal mean of the left crossing point at TCross mean H TCross1 , the horizontal standard deviation of the left crossing point...
Page 417: Measurements Annotations
Appendix B: Automatic Measurements Supported Measurements Annotations Table B- -2 describes the annotations for each measurement. Table B- 2: Supported measurements and their definition Measurements Annotation descriptions Amplitude Amplitude 2 horizontal bars indicating the amplitude value. measurement High 1 horizontal bar indicating the high value. annotations 1 horizontal bar indicating the low value.
Page 418 Appendix B: Automatic Measurements Supported Table B- 2: Supported measurements and their definition (Cont.) Measurements Annotation descriptions Time These annotations are not visible when the reference level units are absolute instead of a percentage. measurement Rise Time 2 horizontal arrows facing each other at the high and low ref indicating the start and end time. annotations In detailed mode there are 2 horizontal bars indicating the high and low.
Page 419 Appendix B: Automatic Measurements Supported Table B- 2: Supported measurements and their definition (Cont.) Measurements Annotation descriptions Histogram Wfm Ct None measurement Hts in Box None annotations Peak Hits 1 vertical or horizontal bar indicating the peak hits. Median 1 vertical or horizontal bar indicating the median bin. 1 vertical or horizontal bar indicating the max bin.
Page 420 Appendix B: Automatic Measurements Supported Table B- 2: Supported measurements and their definition (Cont.) Measurements Annotation descriptions Comm Ext Ratio 4 horizontal arrows and 2 horizontal bars indicating the eye measurement top, and eye base. annotations Ext Ratio % 4 horizontal arrows and 2 horizontal bars indicating the eye (Cont.) top, and eye base.
Page 421 Appendix B: Automatic Measurements Supported Table B- 2: Supported measurements and their definition (Cont.) Measurements Annotation descriptions Comm Noise P-P 1 box indicating the histogram boundaries. measurement In detailed mode, 4 horizontal arrows and 2 horizontal bars indicating the eye window left, right, top, and base.
Page 422 Appendix B: Automatic Measurements Supported B- 14 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 423: Appendix C: Menu Bar Commands
Appendix C: Menu Bar Commands Both the instrument menu bar and a toolbar allow you to control instrument operation. Where possible, this manual describes operation using first, the front panel and then, the toolbar. This appendix describes functions available from the menu bar.
Page 424 Appendix C: Menu Bar Commands Table C- 1: File menu commands (Cont.) Menu Submenu Function Run Application (depends on installed Allows you to start an optional application applications) Page Setup Displays the Page Setup dialog box that you use to define the page before sending data to a printer Print Preview Shows you a preview of the page before you print the page...
Page 425: Edit Commands
Appendix C: Menu Bar Commands Edit Commands Table C- -2 lists the commands available from the Edit menu on the menu bar. Table C- 2: Edit menu commands Menu Submenu Function Undo Last Autoset Undoes the last autoset Copy Copies the full screen, graticule, waveform, or measurement to the clipboard for use with other applications Select for Copy Full Screen (bitmap)
Page 426: Vertical Commands
Appendix C: Menu Bar Commands Vertical Commands Table C- -3 lists the commands available from the Vertical menu. Table C- 3: Vertical menu commands Menu Submenu Function Vertical Setup Displays the Vertical Setup window that you use to set the position, scale, offset, termination, coupling, and bandwidth of a channel.
Page 427: Horizontal And Acquisition Commands
Appendix C: Menu Bar Commands Table C- 3: Vertical menu commands (Cont.) Menu Submenu Function Zoom Setup Displays the Zoom Setup window you use to set up the horizontal and vertical zoom controls Zoom Graticule Size 50/50% Sets the zoom graticule split mode to 50/50% 80%/20% Sets the zoom graticule split mode to 80/20% 100%...
Page 428 Appendix C: Menu Bar Commands Table C- 4: Horiz/Acq menu commands (Cont.) Menu Submenu Function Run/Stop Displays the Run/Stop control window that you can use to start and stop acquisitions, control a single sequence of acquisitions, and display the acquisition status Delay Mode On Toggles horizontal delay mode on and off Roll Mode Auto...
Page 429: Trigger Commands
Appendix C: Menu Bar Commands Table C- 4: Horiz/Acq menu commands (Cont.) Menu Submenu Function Zoom Graticule Size 50/50% Sets the zoom graticule split mode to 50/50% 80%/20% Sets the zoom graticule split mode to 80/20% 100% Sets the zoom graticule split mode to 100% Size Displays the Zoom Display Area control window that you use to set the zoom graticule size...
Page 430 Appendix C: Menu Bar Commands Table C- 5: Trig menu commands (Cont.) Menu Submenu Function Edge Setup Displays the Trigger Setup window and sets up the selected trigger type Glitch Setup Width Setup Runt Setup Timeout Setup Transition Setup Setup/Hold Setup Logic Pattern Setup Logic State Setup Comm Setup (optional...
Page 431: Display Commands
Appendix C: Menu Bar Commands Display Commands Table C- -6 lists the commands available from the Display menu. Table C- 6: Display menu commands Menu Submenu Function Display Setup Displays the Display Setup window (select the display appearance, display screen text, display screen objects, and select colors) Appearance Displays the Appearance tab of the Display Setup window (select the display style, persistence, intensity, format, and interpolation)
Page 432 Appendix C: Menu Bar Commands Table C- 6: Display menu commands (Cont.) Menu Submenu Function Record View Palette Normal, Choose Normal to use system colors for best viewing Monochrome Gray, Choose Green to display waveforms in shades of green Monochrome Green, Temperature Grading, Choose Gray to display waveforms in shades of gray Spectral Grading...
Page 433: Cursors Commands
Appendix C: Menu Bar Commands Cursors Commands Table C- -7 lists the commands available from the Cursors menu. Table C- 7: Cursor menu commands Menu Submenu Function Cursor Controls Displays the Cursor Controls window that you use to set up and control cursors Cursors On Toggles cursors on and off Cursor Type...
Page 434 Appendix C: Menu Bar Commands Table C- 8: Measure menu commands (Cont.) Menu Submenu Function Time Rise Time, Fall Time, Displays the selected measurement of the selected waveform Positive Width, Negative Width, Period, Frequency, Delay, Pos Duty Cycle, Neg Duty Cycle Comm (optional on Ext Ratio, Ext Ratio %, Displays the selected measurement of the selected waveform...
Page 435: Masks Commands
Appendix C: Menu Bar Commands Table C- 8: Measure menu commands (Cont.) Menu Submenu Function Histogram Measure- Waveform Count, Hits in Displays the selected measurement of the histogram ments Box, Peak Hits, Median, Maximum, Minimum, Peak to Peak, Mean, Standard Deviation, Mean 1 StdDev, Mean...
Page 436: Math Commands
Appendix C: Menu Bar Commands Table C- 9: Masks menu commands (Cont.) Menu Submenu Function Mask On Toggles the mask on or off Mask Controls Displays the Mask control window that you use to control mask pass/fail testing and display test results Mask Configure Display, AutoSet, Displays the Mask Configuration setup window that you use to configure the...
Page 437: Utilities Commands
Appendix C: Menu Bar Commands Table C- 10: Math menu commands (Cont.) Menu Submenu Function Phase Spectrum Creates a predefined phase spectral math waveform Spectral Controls Displays the Spectral Math controls window that you can use to control your spectral math waveform Set Math Averages Displays the Math Averaging controls window that you use to set up averaging in math waveforms...
Page 438: Help Commands
Appendix C: Menu Bar Commands Table C- 11: Utilities menu commands (Cont.) Menu Submenu Function Deassign Multipurpose Deassigns the multipurpose knobs from their current function Knobs User Preferences Displays a window that you use to enable prompts before the instrument performs requested actions (autoset, autoset undo, default/recall setup, overwrite/delete setup, or delete reference waveform), set keypad trigger level defaults, select whether horizontal scale or sample rate is held constant when...
Page 439: Appendix D: Cleaning
Use only deionized water when cleaning the front-panel buttons. Use a 75% isopropyl alcohol solution as a cleaner and rinse with deionized water. Before using any other type of cleaner, consult your Tektronix Service Center or representative.
Page 440: Flat Panel Display Cleaning
Appendix D: Cleaning Flat Panel Display Cleaning The display is soft plastic and must be treated with care during cleaning. CAUTION. Improper cleaning agents or methods can damage the flat panel display. Do not use abrasive cleaners or commercial glass cleaners to clean the display. Do not spray liquids directly on the display surface.
Page 441: Glossary
Glossary AC coupling A type of signal transmission that blocks the DC component of a signal but uses the dynamic (AC) component. Accuracy The closeness of the indicated value to the true value. Acquisition The process of sampling signals from input channels, digitizing the samples into data points, and assembling the data points into a waveform record.
Page 442 Glossary Area Measurement of the waveform area taken over the entire waveform or the gated region. Expressed in mixed amplitude and time units, such as volt-seconds. Area above ground is positive; area below ground is negative. Attenuation The degree the amplitude of a signal is reduced when it passes through an attenuating device such as a probe or attenuator.
Page 443: Channels
Glossary Control knob See Knob. Channel One type of input used for signal acquisition. The instrument has four channels. Channel/probe deskew A relative time delay for each channel. This lets you align signals to compensate for the fact that signals may come in from cables of differing length.
Page 444 Glossary Decibel: a method of expressing power or voltage ratios. The decibel scale is logarithmic. It is often used to express the efficiency of power distribution systems when the ratio consists of the energy put into the system divided by the energy delivered (or in some cases, lost) by the system.
Page 445: Fast Acquisition Mode
Glossary Display system The part of the instrument that shows waveforms, measurements, control windows, status, and other parameters. Dragging The act of changing your touch panel selection by moving your finger without removing it from the screen. The selection that is activated is the last one that you were touching before removing your finger.
Page 446 Glossary Fall Time A measurement of the time it takes for the trailing edge of a pulse to fall from a HighRef value (typically 90%) to a LowRef value (typically 10%) of its amplitude. Fiber Optics A method of transmitting information in which light is modulated and transmitted over high-purity, filaments of glass.
Page 447 Glossary Ground (GND) coupling Coupling option that disconnects the input signal from the vertical system. Hardcopy An electronic copy of the display in a format useable by a printer or plotter. Hi Res acquisition mode An acquisition mode in which the instrument averages all samples taken during an acquisition interval to create a record point.
Page 448 Glossary Initialize Setting the instrument to a completely known, default condition. Interpolation The way the instrument calculates values for record points when the instrument cannot acquire all the points for a complete record with a single trigger event. That condition occurs when the instrument is limited to real time sampling and the time base is set to a value that exceeds the effective sample rate of the instrument.
Page 449 Glossary Logic state trigger The instrument checks for defined combinatorial logic conditions on channels 1, 2, and 3 on a transition of channel 4 that meets the set slope and threshold conditions. If the conditions of channels 1, 2, and 3 are met then the instrument triggers.
Page 450 Glossary Measurement Tracking The process of automatically adjusting the measurement parameters to reflect changes in the trace. Mesial The middle point of a range of points. The middle measurement point between proximal and distal points for timing measurements, and the intermediate height between baseline and topline for amplitude measure- ments.
Page 451 Glossary Negative width A timing measurement of the distance (time) between two amplitude points — falling-edge MidRef (default 50%) and rising-edge MidRef (default 50%) — on a negative pulse. Normal trigger mode A mode on which the instrument does not acquire a waveform record unless a valid trigger event occurs.
Page 452 Glossary Persistence The amount of time a data point remains displayed. There are three persistence modes available in the instrument Variable, Infinite, and Off. Phase A timing measurement between two waveforms of the amount one leads or lags the other in time. Phase is expressed in degrees, where 360_ comprise one complete cycle of one of the waveforms.
Page 453 Glossary Probe An input device. Probe compensation Adjustment that improves low-frequency response of a probe. Proximal The point closest to a reference point. As used in the instrument, the beginning measurement point for timing measurements. Pulse trigger A trigger mode in which triggering occurs if the instrument finds a pulse, of the specified polarity, with a width between, or optionally outside the user-specified lower and upper time limits.
Page 454 Glossary Rise time The time it takes for a leading edge of a pulse to rise from a LowRef value (typically 10%) to a HighRef value (typically 90%) of its amplitude. Amplitude (voltage) measurement of the true Root Mean Square voltage. Runt trigger A mode in which the instrument triggers on a runt.
Page 455 Glossary Setup/Hold trigger A mode in which the instrument triggers when a data source changes state within the setup or hold time relative to a clock source. Positive setup times precede the clock edge; positive hold times follow the clock edge. The clock edge may be the rising or falling edge.
Page 456 Glossary Time base The set of parameters that let you define the time and horizontal axis attributes of a waveform record. The time base determines when and how long to acquire record points. Timeout trigger A trigger mode in which triggering occurs if the instrument does NOT find a pulse, of the specified polarity and level, within the specified time period.
Page 457 Glossary Waveform database mode An acquisition mode that processes and displays a larger sample of data. The waveform database is a three-dimensional accumulation of source waveform data over several acquisitions. In addition to amplitude and timing informa- tion, the database includes a count of the number of times a specific waveform point has been acquired.
Page 458 Glossary Glossary- 18 CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual...
Page 459 Index Symbols positive, 3- - 94, 3- - 96, 3- - 100, 3- - 102, 3- - 121 pulse, 3- - 94, 3- - 96, 3- - 99, 3- - 101, 3- - 104 <, A Trigger control window, 3- - 95 rising edge, 3- - 109, 3- - 111 >, A Trigger control window, 3- - 95 runt, 3- - 96...
Page 460 Acquisition preview, 3- - 125 intensity, 3- - 53 Acquisition setup, C- - 5 interleaving, 3- - 46 Address, Tektronix, xvii interpolation, 3- - 45 Advanced, 3- - 88 linear interpolation, 3- - 45 Aliasing, 3- - 33, 3- - 227, Glossary- - 1...
Page 461 Connectivity tools, 2- - 2 Ch1, Ch2 ..., A Trigger control window, 3- - 94, 3- - 96, Contacting Tektronix, xvii 3- - 99, 3- - 101, 3- - 104, 3- - 106, 3- - 109, 3- - 111, 3- - 121...
Page 462 Index Controlling data input and output, 3- - 245 Copy, C- - 3 Copy a waveform, 3- - 273 DATA, 3- - 64 Copy setup, C- - 3 Data, controlling input and output, 3- - 245 Copy waveforms, 3- - 273 Data input/output, 3- - 245 Copying waveforms, 3- - 262 all settings are retained, 3- - 246...
Page 463 Index recall your waveform, 3- - 259 displaying, 3- - 281 remote communication, 3- - 282 set, 3- - 140 retaining current settings, 3- - 246 setting, 3- - 281 save all waveforms to files, 3- - 256 Date/time, on hardcopies, 3- - 281 save the file, 3- - 270 dB, 3- - 233, Glossary- - 4 save the setup, 3- - 248...
Page 464 Index style, 3- - 138, C- - 9 Displaying waveforms, 3- - 123 styles, 3- - 141 access the display Setup dialog box, 3- - 142 system, Glossary- - 5 acquisition preview, 3- - 125 Display control, 3- - 125 adjust the horizontal reference, 3- - 130 Display control window backlight timeout, 3- - 140...
Page 465 Index record length, 3- - 127 Duration, 3- - 204 reference colors, 3- - 139 Duty cycle, Glossary- - 10, Glossary- - 12 reset zoom, 3- - 136, 3- - 137 Duty cycle distortion, B- - 5 scale, 3- - 127 screen saver, 3- - 140 screen text, 3- - 138 select a persistence mode, 3- - 143...
Page 466 Index Eye top, B- - 4, C- - 12 Fiber optics, Glossary- - 6 Eye width, B- - 4, C- - 12 File formats, 3- - 262 File menu 1 recent setup file !, C- - 2 delete all refs, C- - 1 display on/off, C- - 1 Fall time, B- - 1, C- - 12, Glossary- - 6 export, C- - 2...
Page 467 Index Gating controls, 3- - 202 High, B- - 1, Glossary- - 7 Gaussian window, 3- - 214, 3- - 216, 3- - 219 High level, C- - 11 General purpose knob, Glossary- - 10 High/low method, 3- - 151 Glitch either trigger, Glossary- - 6 Histogram, 3- - 157 Glitch negative trigger, Glossary- - 6...
Page 468 Index Horizontal offset, overview, 3- - 23 Interpolation, 3- - 45, 3- - 46, 3- - 139, 3- - 141, C- - 9, Horizontal reference, 3- - 125, 3- - 128 Glossary- - 8 Horizontal reference point, Glossary- - 7 incompatible with DPO, 3- - 47 Horizontal scale, 3- - 127 Introduction, to this manual, xv...
Page 469 Index Logic, A Trigger control window, 3- - 109, 3- - 110 defining spectral math waveforms, 3- - 202 logic, 3- - 106 See also Spectral Math pulse, 3- - 94 derivative. See Derivative math waveform Logic, main trigger menu, pulse, 3- - 101, 3- - 104 derivative math waveform, illustration, 3- - 191 Low, B- - 2, Glossary- - 9 differentiation, 3- - 190...
Page 470 Index crossing %, C- - 12 statistics controls, C- - 12 cycle area, C- - 12 time, C- - 12 cycle distortion, C- - 12 value count, C- - 13 cycle mean, C- - 11 value mean, C- - 12 cycle RMS, C- - 11 waveform histograms, C- - 12 delay, C- - 12...
Page 471 Index propagation delay, B- - 1 FastFrame, 3- - 150 quality factor, B- - 5 gates, 3- - 150 rise time, B- - 3, Glossary- - 14 gating, 3- - 159 RMS, B- - 3, Glossary- - 14 graticule, cursor and automatic measurements, S/N ratio, B- - 5 3- - 148 stddev, B- - 3...
Page 472 Index split cursors, 3- - 161 Negative overshoot, B- - 2 standard deviation, 3- - 155 Negative width, B- - 2, C- - 12 statistics, 3- - 149 Negative, A Trigger control window, 3- - 94, 3- - 96, take a snapshot of measurements, 3- - 158 3- - 100, 3- - 102, 3- - 121 take measurements on a frame, 3- - 150 Net offset, A- - 8...
Page 473 Pulse, A Trigger control window, 3- - 94, 3- - 99, 3- - 101, Phase suppression, 3- - 213 3- - 104 Phase verses frequency, 3- - 203 Phone number, Tektronix, xvii Pixel, Glossary- - 12 Pk-pk, B- - 3 Q factor, B- - 5 Plug&play software, 1- - 12–1- - 20...
Page 474 Index integral math waveforms, 3- - 193 Recovered clock, 3- - 63, 3- - 65, Glossary- - 13 S/N ratio, B- - 5, C- - 12 data, 3- - 63, 3- - 64 Sample, 3- - 28, 3- - 35 Recovered clock, 3- - 74, 3- - 122 Sample acquisition mode, Glossary- - 14 Rectangular window, 3- - 214, 3- - 216, 3- - 220, 3- - 235...
Page 475 Index Set/hold trigger, 3- - 92 Spectral analysis, displaying phase, 3- - 234 Setting, Glossary- - 14 Spectral analyzer controls, 3- - 236 Setting acquisition controls, 3- - 26 Spectral averaging, 3- - 203 Setting vertical range and position, 3- - 22 Spectral controls, C- - 15 Setup Spectral grading, C- - 10...
Page 476 Index magnitude verses frequency, 3- - 202 time and frequency graphs for the Kaiser-Bessel multiple analyzer control locks, 3- - 203 window, illustration, 3- - 223 nearest side lobe, 3- - 216, 3- - 218 time and frequency graphs of the Blackman-Harris phase reference point, 3- - 237 window, illustration, 3- - 224 phase reference position, 3- - 212...
Page 477 3- - 82 Tek Secure, 3- - 260, C- - 15, Glossary- - 15 runt, 3- - 89, 3- - 96, Glossary- - 14 Tektronix, contacting, xvii setup/hold, 3- - 92, 3- - 110 TekVISA, 2- - 2 slew rate, 3- - 90, Glossary- - 15 Temperature compensation, 3- - 171–3- - 184...
Page 478 Index transition setup, C- - 8 set the transition time, 3- - 102 width, C- - 7 set thresholds, 3- - 109 width setup, C- - 8 set to trigger if width, 3- - 95 Trigger overview, 3- - 71 set to trigger when, 3- - 97, 3- - 100, 3- - 103, 3- - 104 Trigger point, defined, 3- - 41 set trigger when, 3- - 110...
Page 479 Update, software, 1- - 4 probe cal, C- - 4 Upgrade, software, 1- - 4 termination, C- - 4 URL, Tektronix, xvii vertical setup, C- - 4 User files, backing up, 1- - 11 zoom controls, C- - 4 User palette, C- - 10...
Page 480 3- - 218 Wavelength, selection, 3- - 67 Zoom, 3- - 125, 3- - 127, 3- - 131–3- - 146, 3- - 160 Web site address, Tektronix, xvii 100%, C- - 5, C- - 7 Width, Glossary- - 11, Glossary- - 12...

This manual is also suitable for:

Csa7154 Tds7104 Tds7404 Tds7054 Tds6604 Tds6404 ... Show all

Tektronix CSA7404 User Manual

Table of Contents

List of Tables

Quick Links

Chapters

Related Manuals for Tektronix CSA7404

Summary of Contents for Tektronix CSA7404