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Tektronix CSA8000 User Manual

Tektronix CSA8000 User Manual

Communications signal analyzer / digital sampling oscilloscope
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  • Page 1 Tektronix CSA8000 Manual Get Pricing & Availability at ApexWaves.com Call Today: 1-800-915-6216 Email: sales@apexwaves.com https://www.apexwaves.com/oscilloscopes/tektronix-inc/csa8000/CSA8000...
  • Page 2 User Manual CSA8000 Communications Signal Analyzer TDS8000 Digital Sampling Oscilloscope 071-0433-02 This document applies to firmware version 1.00 and above. www.tektronix.com...
  • Page 3 Commercial Computer Software – Restricted Rights clause at FAR 52.227-19, as applicable. 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.
  • Page 4 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 6: Table Of Contents

    ..........2–3 CSA8000 & TDS8000 User Manual...
  • Page 7 ........3–25 CSA8000 & TDS8000 User Manual...
  • Page 8 ........3–51 CSA8000 & TDS8000 User Manual...
  • Page 9 ........3–82 CSA8000 & TDS8000 User Manual...
  • Page 10 ........... 3–116 CSA8000 & TDS8000 User Manual...
  • Page 11 ........3–153 CSA8000 & TDS8000 User Manual...
  • Page 12 ......B–7 Appendix C: Insert Sampling Module User Manuals Here ..C–1 Glossary Index CSA8000 & TDS8000 User Manual...
  • Page 13 ......A–6 Table A–5: CSA8000 and TDS8000 – Power consumption and cooling ..........
  • Page 14 Figure 3–16: Display elements ....... . 3–48 CSA8000 & TDS8000 User Manual...
  • Page 15 ... . . B–6 Figure B–2: Eye-diagram and optical values ....B–7 CSA8000 & TDS8000 User Manual...

  • Page 16: General Safety Summary

    Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel. Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. CSA8000 & TDS8000 User Manual...
  • Page 17 Refer to Manual High Voltage Rackmount Installations This product may be rackmounted by using the appropriate Tektronix rackmount kit and following its instructions. If rackmounting, you must observe the following warnings: WARNING. To prevent the rackmounted instrument from tipping forward onto the operator, install the instrument so that the operator will be able to access all of its rear devices without pushing down on the instrument.

  • Page 18: Preface

    CSA8000 & TDS8000 Programmer Online Guide manual.) Appendices provides additional information including the specifications and automatic measurement definitions.

  • Page 19: Conventions

    (Manual part numbers are listed in Table 1–3 on page 1–35.) Manual name Description CSA8000 & TDS8000 Online Help An online help system, integrated with the User Interface application that ships with this product. CSA8000 & TDS8000 References A quick reference to major features of the instrument and how they operate.

  • Page 20: Contacting Tektronix

    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. CSA8000 & TDS8000 User Manual...
  • Page 21 Preface CSA8000 & TDS8000 User Manual...

  • Page 22: Product Description

    Product Description This chapter describes your instrument, which is either the CSA8000 Commu- nications Signal Analyzer or the TDS8000 Digital Sampling Oscilloscope, and its options. Following this description are four sections: Check the Package Contents, on page 1–5, shows you how to verify that you have received all of the parts of your instrument.
  • Page 23 622 Mbps to 10.66 Gbps and for Fibre Channel 1063 and Gigabit Ethernet signals. a large 10-inch color display that supports color grading of waveform data to show sample density. an intuitive UI (User Interface), with built-in online help displayable on screen. 1–2 CSA8000 & TDS8000 User Manual...

  • Page 24: Product Software

    Occasionally new versions of the software may become available at our web site. See Contacting Tektronix on page xv in Preface. Firmware Upgrade Tektronix may offer firmware upgrade kits for the instrument. Contact your Tektronix service representative for more information (see Contacting Tektronix on page xv).
  • Page 25 80A01 Trigger Prescale Limiting Preamplifier Module – A single-channel module providing 8-14 GHz AC coupled 50 limiting preamplification. It increases the sensitivity of the prescale trigger input of the 8000 Series instruments to 200 mV pk-pk 1–4 CSA8000 & TDS8000 User Manual...

  • Page 26: Check The Package Contents

    See Table 1–4 on page 1–36 for a list of optional accessories.) Remember to fill out and send in the customer registration card. The registration card is packaged in an envelope in the shipping package. 1–5 CSA8000 & TDS8000 User Manual...
  • Page 27 Installation 1–6 CSA8000 & TDS8000 User Manual...

  • Page 28: Installation

    You can also operate the instrument while it rests stood up on its rear feet. If you operate the instrument while it is resting on the rear feet, make sure that you 1–7 CSA8000 & TDS8000 User Manual...

  • Page 29: Install The Sampling Modules

    Power source and temperature, humidity, and altitude are listed. Rackmount Requirements If this instrument is rackmounted, see the TDS8000 & CSA8000 Rackmount Instructions for additional site considerations or operating requirements. This document ships with the Option 1 R (rackmount kit).

  • Page 30: Figure 1-1: Compartments For Sampling Modules

    Please place your sampling-module user manuals in Appendix C of this manual to keep them handy. Large-module compartments (2) Small-module compartments (4) Connect ESD wrist strap here Figure 1–1: Compartments for sampling modules 1–9 CSA8000 & TDS8000 User Manual...

  • Page 31: Figure 1-2: Maximum Inputs In Three Configurations

    Install probes, cables, and other connection accessories to your sampling modules as appropriate for your application and sampling module. Again, consult your sampling-module and connection-accessory manuals. Continue with the next section after installing the sampling modules. 1–10 CSA8000 & TDS8000 User Manual...

  • Page 32: Connect The Peripherals

    Card slot... Product ships with a USB keyboard, that plugs into the USB port, and a USB mouse that plugs into the back of the keyboard Figure 1–3: Locations of peripheral connectors on rear panel 1–11 CSA8000 & TDS8000 User Manual...

  • Page 33: Power On The Instrument

    EPP connector. For information on printer usage, see Printing Waveforms on page 3–120. Rackmount Refer to the CSA8000 & TDS8000 Rackmount Installation Instructions for information on installing the rackmount kit. Other Refer to the Application release notes on your System Rebuild CD for possible additional accessory installation information not covered in this manual.

  • Page 34: Figure 1-5: On/Standby Switch Location

    7. Wait for the boot routine and low-level self test to complete. 8. Follow any instructions on the screen. The internal setup software will automatically configure your instrument and install all required devices, depending on the installed accessories. 1–13 CSA8000 & TDS8000 User Manual...

  • Page 35: Powering Off The Instrument

    6. Insert a floppy disk into the disk drive and follow the on-screen instructions to create the startup disk. 7. You can restore the UI application to the screen by clicking its button in the Windows Task bar. 1–14 CSA8000 & TDS8000 User Manual...

  • Page 36: Back Up User Files

    5. You can restore the UI application to the screen by clicking its button in the Windows Task bar. Software Installation This section describes how to install the software found on the CSA8000 & TDS8000 OS Rebuild (063-3491-XX) and Product Software (063-3492-XX) CDs that accompany this product. The instrument ships with the product software installed, so only perform these procedures if reinstallation becomes necessary.

  • Page 37: Software Release Notes

    Push the On/Standby switch on the front panel. 5. The instrument should now boot from the emergency startup disk and present you with a selection menu. Use the arrow and enter keys to choose 1–16 CSA8000 & TDS8000 User Manual...

  • Page 38: Windows 98 Reinstall Only

    When you have finished investigating and removed any barrier to Windows start-up, you can reboot. If the instrument no longer boots to Safe mode, you can remove the keyboard and mouse if desired. 1–17 CSA8000 & TDS8000 User Manual...
  • Page 39 Installation 1–18 CSA8000 & TDS8000 User Manual...

  • Page 40: Incoming Inspection

    Windows 98 operating system is functioning. If the instrument fails any test within this section, it may need service. To contact Tektronix for service, see Contacting Tektronix on page xv of Preface. Make sure you have put the instrument into service as detailed in Installation starting on page 1–7.

  • Page 41: Perform The Diagnostics

    Select the all the entries by clicking the first entry Control Proc and dragging down to select the rest. All entries should be highlighted as shown above. c. In the Run box, leave Loop and Halt on Failure unchecked. 1–20 CSA8000 & TDS8000 User Manual...

  • Page 42: Perform The Compensation

    50 ohm terminators, part number 015-1022-xx. (Quantity to match number of electrical channels to compensate.) The sampling modules shipped from Tektronix with the proper terminator installed. Prerequisites First, all sampling modules to be diagnosed must be installed as outlined in their user manuals.

  • Page 43: Figure 1-6: Compensation Dialog Box

    If instead Fail appears as Status, rerun the compensation. If Fail status continues after rerunning compensation and you have allowed warm up to occur, the module or main instrument may need service. 1–22 CSA8000 & TDS8000 User Manual...

  • Page 44: Perform The Functional Tests

    Verify Electrical Input Install the test hookup and preset the instrument controls: Channels Equipment One SMA cable, such as Tektronix part number 174-1427-00. required Prerequisites At least one electrical (80E00 series) sampling module must be installed as outlined in its user manual.

  • Page 45: Figure 1-7: Hookup For Electrical Functional Tests

    Push the Vertical MENU front-panel button again to dismiss the Vert Setup dialog box. 5. Select the channel to test: Push the channel button for the channel you want to test. The button lights and the channel display comes on. See Figure 1–8. 1–24 CSA8000 & TDS8000 User Manual...

  • Page 46: Figure 1-8: Channel Button Location

    8. Test all channels: Repeat steps 2 through 7 until all electrical input channels are verified. 9. Remove the test hookup: Disconnect the SMA cable from the channel input and the DC CALIBRATION output. 1–25 CSA8000 & TDS8000 User Manual...

  • Page 47: Figure 1-9: Channel Button Location

    The button lights amber and the channel displays. See Figure 1–9. Channel buttons Figure 1–9: Channel button location 4. Verify that the channel is operational: Confirm that the following statements are true. 1–26 CSA8000 & TDS8000 User Manual...

  • Page 48: Figure 1-10: Optical Channel Verification

    0.000 offset returns the baseline to center screen. Baseline Vertical offset Control bar Vertical offset setting Figure 1–10: Optical channel verification 1–27 CSA8000 & TDS8000 User Manual...

  • Page 49: Figure 1-11: Hookup For The Time Base Tests

    After verifying the channels, you can now verify that the time bases function. Time Bases Work This verification is done using a front-panel signal. Equipment One SMA cable, such as Tektronix part number 174-1427-00. required One 10x SMA attenuator, such as Tektronix 015-1003-00. One electrical (80E00-series) sampling module.

  • Page 50: Figure 1-12: Channel Button Location

    5. Verify that the Main time base operates: Confirm the following statements are true: One period of the internal clock signal (a square wave) is about five horizontal divisions on-screen. See Figure 1–13 on page 1–30. 1–29 CSA8000 & TDS8000 User Manual...

  • Page 51: Figure 1-13: Main Time Base Verification

    Set the Horizontal SCALE to 1 s/div. The horizontal scale readout is displayed in the Control bar at the bottom of the graticule and is now reading out the scale of the Mag1 time base view. 1–30 CSA8000 & TDS8000 User Manual...

  • Page 52: Figure 1-14: Mag Time Base Verification

    Push the Mag1 button to remove the display of the Mag1 time base. b. Perform steps 6 and 7, but use the Mag2 button instead of the Mag1. End of Functional Test Procedures 1–31 CSA8000 & TDS8000 User Manual...

  • Page 53: Perform The Hardware And Operating System Tests

    Keyboards made for use with Windows contain two or three keys specific to that operating system. These are usually located on either side of the space bar. QAPlus/WIN does not trap these keys when performing the keyboard test. Do not press them. 1–32 CSA8000 & TDS8000 User Manual...
  • Page 54 6. Select and execute the following tests by clicking on the highlighted test buttons (in Figure below) one at a time and clicking Start: a. COM Ports b. LPT Ports c. System Board d. System Info e. USB Video 1–33 CSA8000 & TDS8000 User Manual...
  • Page 55 QAPlus test window. All tests should pass. 8. Close the QAPlus/Win diagnostics by selecting Exit in the File menu. 9. You can restore the product software application to the screen by clicking the TDS/CSA8000 icon in the Windows Task bar. End of Procedure 1–34...

  • Page 56: Accessories And Options

    1 Accessory pouch 016-1441-00 2 Touchscreen styluses 119-6107-00 1 ESD wrist strap with 6 foot coiled cord 006-3415-04 CSA8000 & TDS8000 Online Help (part of application Not Applicable software) CSA8000 & TDS8000 User Manual 071-0433-XX CSA8000 & TDS8000 Reference 071-0437-XX CSA8000 &...

  • Page 57: Optional

    Accessories and Options Table 1–3: Standard accessories (Cont.) Item Part Number CSA8000 & TDS8000 OS Rebuild CDs (this 2-disk set 063-3491-XX includes a certificate of authenticity for software and a restore license) CSA8000 & TDS8000 Product Software CD 063–3492–XX Power cord...

  • Page 58: Options

    Option A99 – No power cord shipped Service offerings: Option C3: Three years of calibration services Option D3: Test Data for calibration services in Opt. C3 Option R3: Repair warranty extended to cover three years Option D1: Calibration data report 1–37 CSA8000 & TDS8000 User Manual...
  • Page 59 Accessories and Options 1–38 CSA8000 & TDS8000 User Manual...

  • Page 60: Operational Maps

    Tutorial procedures are available online, as part of the online help. To display, select the Setups Guide from the UI application Help menu. For information on configuring and installing your instrument, refer to Chapter 1, Getting Started. 2–1 CSA8000 & TDS8000 User Manual...

  • Page 61: Documentation Map

    Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î you are reading now. Î Î Î Î Î Î Î Î Î Î Î Î Î 2–2 CSA8000 & TDS8000 User Manual...
  • Page 62 Additionally, the printable version of this online help file is available in PDF format on the Tektronix website. See Contacting Tektronix for information on how to access our website. You may also want to obtain the optional service manual for this product if you self-service or performance test this instrument.

  • Page 63: System Overview Maps

    Sampling modules determine the size of the vertical acquisition window for each channel. Digital Signal Acquisition System. Acquires a waveform record from each signal you apply to each channel using the following subsystems: 2–4 CSA8000 & TDS8000 User Manual...
  • Page 64 Provides output (and sometimes input) of instrument-data elements in a form suitable to the user. The process overview that follows describes each step in the top-level cycle of instrument operation. 2–5 CSA8000 & TDS8000 User Manual...

  • Page 65: Process Overview Map

    3, according to what it finds. Note: if acquiring when powered down, the oscilloscope may skip the idle state and resume acquisition starting with step 3. 2–6 CSA8000 & TDS8000 User Manual...

  • Page 66: User Interface Map – Complete Control And Display

    (right-click) the Readout Bar Controls Bar: Quick access to waveforms and timebases for display, and to their scale, offset, and position controls for adjustment 2–7 CSA8000 & TDS8000 User Manual...

  • Page 67: Front Panel Map – Quick Access To Most Often Used Features

    Page 3–8. Turn knobs to Horizontally scale, position, and set record length of selected waveform. Page 3–9. Use controls to set trigger level and lights to monitor trigger state. Page 3–45. 2–8 CSA8000 & TDS8000 User Manual...

  • Page 68: Display Map – Single Graticule View

    Drag ground reference icon to add offset to a waveform. Drag across the waveform area to zoom the boxed waveform segment to full screen width. 2–9 CSA8000 & TDS8000 User Manual...

  • Page 69: Display Map - Multiple Views

    Mag 2 View. Drag the markers to enclose the portion of waveform to appear in Mag 1 View. MAIN View Drag the border between graticules to vertically size View Main, Mag1, and Mag2 Views. View 2–10 CSA8000 & TDS8000 User Manual...

  • Page 70: Front Panel I/O Map

    DC CALIBRATION OUTPUT Compartments for small modules, up to eight channels EXTERNAL 10 MHZ REFERENCE INPUT for wrist ANTISTATIC CONNECTION strap, 1 M to ground TRIGGER TRIGGER TRIGGER PRESCALE DIRECT PROBE input input POWER 2–11 CSA8000 & TDS8000 User Manual...

  • Page 71: Rear Panel I/O Map

    GPIB port to connect to controller RJ-45 connector to connect to network COM1 serial port Card Bus slots for two PCMCIA type-1 cards, two type-2 cards, or one type-3 card 2–12 CSA8000 & TDS8000 User Manual...

  • Page 72: Overview

    Provides an overview of the help system, which is integrated as part of the instrument 3–145 user interface, and describes how to access it Cleaning the Instrument Provides instructions on how to clean the exterior of the instrument and its touch screen 3–153 3–1 CSA8000 & TDS8000 User Manual...
  • Page 73 Overview 3–2 CSA8000 & TDS8000 User Manual...

  • Page 74: Acquiring Waveforms

    These controls also define how all waveforms are displayed, both live and derived waveforms (math and reference waveforms). The sections that follow cover display-related usage follow: Displaying Waveforms on page 3–47. Creating Math Waveforms on page 3–89. 3–3 CSA8000 & TDS8000 User Manual...

  • Page 75: Signal Connection And Scaling

    Set vertical scale to adjust the waveform size on screen. You can set vertical offset to shift the vertical acquisition window up or down on the signal to capture the portion you want. 3–4 CSA8000 & TDS8000 User Manual...

  • Page 76: What's Special

    (Insert your sampling-module user manual(s) in Appendix C at the back of this manual for ready reference.) You can also check your Tektronix catalog for connection accessories that may support your application.

  • Page 77: Coupling Concerns

    Note that vertical offset affects the vertical acquisition window, but vertical scale and position do not. These last two controls are display controls only. Vertical Acquisition Window Considerations on page 3–13 describes the vertical acquisition window. 3–6 CSA8000 & TDS8000 User Manual...

  • Page 78: Trigger And Display

    Flexible Control Access. The product provides multiple methods for adjusting acquisition controls. This manual focuses on basic setup through the front panel, and then through use of the User Interface (UI) Application displayed full screen. 3–7 CSA8000 & TDS8000 User Manual...

  • Page 79: To Set Up The Signal Input

    When on and selected, its button is lighted amber. Hint. To select one of the channels already displayed, you can use a mouse and click its trace or its reference indicator to select it. 3–8 CSA8000 & TDS8000 User Manual...
  • Page 80 See right. Scaled horizontally Positioned horizontally The Resolution knob sets the record length. (See discussion on page 3–17.) Push Set to 50% if required to stabilize display. 3–9 CSA8000 & TDS8000 User Manual...
  • Page 81 For more help For more information on the controls described in this procedure, push the Vertical or Horizontal MENU button. Click the HELP button in the setup dialog box that displays. End of Procedure 3–10 CSA8000 & TDS8000 User Manual...

  • Page 82: To Autoset The Instrument

    For More For more information on the controls described in this Information procedure, push/click the HELP button in any dialog box or select Help Contents and Index in the Help menu. End of Procedure 3–11 CSA8000 & TDS8000 User Manual...

  • Page 83: To Reset The Instrument

    (they have a fixed dynamic range); therefore, input protection and dynamic range are necessarily limited. CAUTION. Do not overdrive the inputs. Also observe static-safe procedures and cautions as outlined in the sampling-module user manual. Sampling modules are very sensitive to ESD. 3–12 CSA8000 & TDS8000 User Manual...

  • Page 84: Autoset Considerations

    You can set the vertical scale, position, and offset of each channel independently of other channels. 3–13 CSA8000 & TDS8000 User Manual...

  • Page 85: Figure 3-2: Setting Vertical Scale And Position Of Input Channels

    Vertical position can change location of display graticule within +/–5 divisions (position set to –4 divisions) +0.50 volt Vertical window +0.45 volt Graticule –0.05 volt –0.5 volt Figure 3–2: Setting vertical scale and position of input channels 3–14 CSA8000 & TDS8000 User Manual...
  • Page 86 NOTE. On screen, the channel icon in the waveform bar points to the offset value around which the vertical acquisition window is centered. The offset value pointed to is relative to the ground reference icon. Both icons are shown in Figure 3–3. 3–15 CSA8000 & TDS8000 User Manual...

  • Page 87: Horizontal Acquisition Window Considerations

    (For background, please read Waveform Record on page 3–27.) These common parameters specify a common horizontal acquisition window that is 3–16 CSA8000 & TDS8000 User Manual...

  • Page 88: Horizontal Scale Vs. Record Length Vs. Sample Interval Vs

    Horizontal Reference on page 3–53 for a discussion of this relationship. Horizontal Scale vs. Record Length vs. Sample Interval vs. Resolution. These parameters all relate to each other and specify the horizontal acquisition window. 3–17 CSA8000 & TDS8000 User Manual...
  • Page 89 (see equation 3 above), are not settable directly, but are derived. You can, however, check the resolution at anytime in the resolution readout (push the Horizontal Menu button). Also note, that the Resolution knob actually adjusts the record length to increase sample density (detail). 3–18 CSA8000 & TDS8000 User Manual...

  • Page 90: Independent Vs. Shared Window

    This section overviews the instrument acquisition features—those that start and stop acquisitions and those that control how the instrument processes the data as it is acquired (just sampled, or averaged or enveloped). Special features, keys to using, and operation controls are covered. 3–19 CSA8000 & TDS8000 User Manual...

  • Page 91: Why Use

    The key points that follow describe operating considerations for setting up the acquisition system so the waveforms acquired best fit your requirements. Acquisition Modes. Consider the mode you want to use to acquire data: Sample - the instrument does no post-processing of acquired samples. 3–20 CSA8000 & TDS8000 User Manual...

  • Page 92: Acquisition Control

    Mag1 time base; the sample mode you set extends across the Main, Mag1 and Mag2 time bases. 3–21 CSA8000 & TDS8000 User Manual...

  • Page 93: Preventing Aliasing

    For example, a signal with frequency components of 500 MHz would need to be sampled with a sample interval less than 1 nanosecond to represent it accurately and to avoid aliasing. 3–22 CSA8000 & TDS8000 User Manual...

  • Page 94: To Set Acquisition Modes

    Click an option button to select the acquisition mode; acquisition Mode choose from the following modes: Sample Average Envelope For Average mode only, enter the number of samples to Set a to average in the Average box. sample count 3–23 CSA8000 & TDS8000 User Manual...
  • Page 95 Î Î Î acquiring. Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î See To Start and Stop Acquisition on page 3–25. End of Procedure 3–24 CSA8000 & TDS8000 User Manual...

  • Page 96: To Start And Stop Acquisition

    Acquisition Control Background This section contains background information on the data sampling and acquisition process that can help you more effectively setup the acquisition window of each channel. This section: describes the acquisition hardware. 3–25 CSA8000 & TDS8000 User Manual...

  • Page 97: Figure 3-7: Channel Configuration

    (see Figure 3–9 on page 3–28). The signal parts within the vertical range of the sampler are digitized. See Figure 3–8. 3–26 CSA8000 & TDS8000 User Manual...

  • Page 98: Figure 3-8: Digital Acquisition - Sampling And Digitizing

    Horizontal Delay. The time lapse from the trigger point to the first sample taken (first point in the waveform record). It is set indirectly by setting the horizontal position (see Horizontal Position and the Horizontal Reference on page 3–53). 3–27 CSA8000 & TDS8000 User Manual...

  • Page 99: Figure 3-9: The Waveform Record And Its Defining Parameters

    The process of clearing waveform records is described on page 3–25. Choose the FrameScan cycle when you want to test for anomalies in Pseudo-Random Bit Streams. See FrameScan Acquisitions on page 3–29. 3–28 CSA8000 & TDS8000 User Manual...

  • Page 100: Framescan Acquisitions

    Compare the noise of the waveforms that follow. The right waveform is averaged; the left is not. 3–29 CSA8000 & TDS8000 User Manual...

  • Page 101: What's Excluded?

    20% overlap between frames. c. This sequence of incrementing, and then acquiring the next bit, continues until the instrument acquires the number of bits you specify 3–30 CSA8000 & TDS8000 User Manual...

  • Page 102: Figure 3-10: How Framescan Acquisition Works

    Notes: ∆h is the horizontal position change = one bit period (=1/bit-rate) Subframe acquisition duration is 40% greater than the bit period Figure 3–10: How FrameScan acquisition works (scanning on a 127–bit PRBS shown) 3–31 CSA8000 & TDS8000 User Manual...

  • Page 103: To Acquire In Framescan Mode

    Scan Bits box. You must always set this parameter manually. Tip. You can set Units to Seconds if you prefer, but Bits usually makes the set up and use of FrameScan acquisition easier. Enter bits to be scanned 3–32 CSA8000 & TDS8000 User Manual...
  • Page 104 10. In the dialog box, click to check the FrameScan Check to FrameScan Enabled box. See right. start scan 11. To restart the scan at the first bit at any time, click the Click to Reset button. restart scan 3–33 CSA8000 & TDS8000 User Manual...
  • Page 105 For more 13. For more help on FrameScan acquisitions, click the information Help button in the Setup dialog box to access contextual help on screen. See page 3–145 to learn about using online help. 3–34 CSA8000 & TDS8000 User Manual...

  • Page 106: To Catch A Bit Error

    Mask testing. Be sure to enable the mask. Tip. If you selected a communication standard when you set the FrameScan bit rate (see step 8 on page 3–33), the same standard will be preselected in the Mask Setup dialog box. 3–35 CSA8000 & TDS8000 User Manual...
  • Page 107 For more help on using FrameScan acquisitions, click For more information the Help button in the Horz Setup dialog box to display contextual help on screen. See page 3–145 to learn about using online help. End of Procedure 3–36 CSA8000 & TDS8000 User Manual...

  • Page 108: Triggering

    The key points that follow describe operating considerations for setting up to trigger on your waveforms. Triggering Process. When a trigger event occurs, the instrument acquires a sample in the process of building a waveform record. The trigger event esta- 3–37 CSA8000 & TDS8000 User Manual...

  • Page 109: Figure 3-11: Slope And Level Define The Trigger Event

    Positive-going edge Negative-going edge Trigger level can be adjusted vertically. Trigger slope can be positive or negative, with trigger point occurring on the slope specified. Figure 3–11: Slope and level define the trigger event 3–38 CSA8000 & TDS8000 User Manual...

  • Page 110: Figure 3-12: Triggered Versus Untriggered Displays

    External Prescale, divided by 8 and usable with signals up to at least 12.5 GHz an internal clock-recovery trigger provided by an optical sampling module equipped with the clock-recovery option. Clock recovery is user-selectable for triggering rates that depend on the sampling module used; for example, 3–39 CSA8000 & TDS8000 User Manual...

  • Page 111: Table 3-1: Application-Based Triggering

    10MHz Reference Input when using the Internal clock. Measurements on systems Set source to External Direct or External Prescaler as with a synchronized pretrigger appropriate (see Trigger Source Connectors) and connect the signal pretrigger signal. 3–40 CSA8000 & TDS8000 User Manual...

  • Page 112: Trigger Source And Esd

    Prescaler input and the input channel, so that the sampled signal is also the trigger signal. Any application requiring that Set source to External Direct, and use a Tektronix probe as you probe the trigger source described in Probe-to-Trigger Source Connection on page 3–41.

  • Page 113: High Frequency Triggering And Metastability Reject

    When the instrument is triggering on undesired trigger events, such as shown in Figure 3–14 (top waveform), you adjust holdoff to obtain stable triggering as shown in Figure 3–14 (bottom waveform). 3–42 CSA8000 & TDS8000 User Manual...

  • Page 114: Figure 3-14: Holdoff Adjustment Can Prevent False Triggers

    EORT = 6 s + (1–0.1(.5) x 1 s/div x 10 div + 0 = 6 s + 5 = 11 s, when: Horizontal position = 6 s Horizontal Ref = 50% Time/Division = 1 s/div Channel Deskew = 0 (set to minimum) 3–43 CSA8000 & TDS8000 User Manual...

  • Page 115: Figure 3-15: Trigger To End Of Record Time (Eort)

    The instrument will retain and change to the requested value if the user changes control settings such that the requested value exceeds the minimum usable holdoff. Actual values can range from 5 s – 55 ms. 3–44 CSA8000 & TDS8000 User Manual...

  • Page 116: To Trigger

    Adjust the trigger level using the (Set Level to) 50% button or the Level list box as show at right, or using those on the Level Controls front panel, shown in step 7. 3–45 CSA8000 & TDS8000 User Manual...
  • Page 117 You can also read about key trigger features in Keys to Using on page 3–37. See page 3–145 for information on online help. End of Procedure 3–46 CSA8000 & TDS8000 User Manual...

  • Page 118: Displaying Waveforms

    The waveform display (see Figure 3–16) is part of the User Interface (UI) application. The UI takes up the entire screen of the instrument and the waveform display takes most of the UI. Some terms that are useful in discussing the waveform display follow. 3–47 CSA8000 & TDS8000 User Manual...

  • Page 119: Figure 3–16: Display Elements

    This indicator may appear when you alter acquisition controls. (7) Main, Mag1, and Mag2 views: selectable objects displaying on screen in the display, each with its own display of any waveform that is currently turned on. A 3–48 CSA8000 & TDS8000 User Manual...

  • Page 120: Why Use?

    What’s Excluded? Previewing of changes does not occur when the acquisition system is stopped; the data will not update on screen until acquisition is restarted. 3–49 CSA8000 & TDS8000 User Manual...

  • Page 121: Table 3-2: Defining And Displaying Waveforms

    Vertical source and waveform selection buttons, and then adjust it using the Vertical Scale, Offset, and Position knobs. Table 3–3 on page 3–51 summarizes operations you can perform for the three waveform types. 3–50 CSA8000 & TDS8000 User Manual...

  • Page 122: Table 3-3: Operations Performed Based On The Selected Waveform

    Operations on the Selected Time Base View. The method of adjusting (horizontal scaling and positioning, setting resolution/record length, and so on) is from the front panel: select the time base using the Horizontal time base selection buttons, 3–51 CSA8000 & TDS8000 User Manual...

  • Page 123: Waveform Operations That Cross Time Base Views

    See the following descriptions for more information: Vertical Acquisition Window Considerations on page 3–13 Horizontal Acquisition Window Considerations on page 3–16 3–52 CSA8000 & TDS8000 User Manual...

  • Page 124: Mag1 And Mag2 Are Magnifying Timebases

    However, for some installations, you might not have sufficient work space to install the mouse or keyboard. For most operations, you can use the touchscreen instead. 3–53 CSA8000 & TDS8000 User Manual...

  • Page 125: Table 3-4: Equivalent Mouse And Touchscreen Operations

    Click the appropriate button (see below), and then touch a control in the UI application and then click a control in the UI application main screen button main screen button dialog box button dialog box button 3–54 CSA8000 & TDS8000 User Manual...

  • Page 126: To Display Waveforms In The Main Time Base View

    Hint. Step 4 assumes any reference or math waveforms you select are defined. See Table 3–2 on page 3–50 if you need help defining these waveforms. Use the Vertical knobs to achieve a good display of each waveform you select. 3–55 CSA8000 & TDS8000 User Manual...
  • Page 127 To quickly rescale a portion of a channel waveform so the time base it expands to fill the 10 divisions on screen. Click on (Zoom) screen and drag a box around the portion of the waveform you want to zoom. 3–56 CSA8000 & TDS8000 User Manual...

  • Page 128: To Display Waveforms In A Mag View

    Lighted green: view is on but not selected Lighted amber: view is on and selected Tip. Drag the divider bar between the two views to adjust the display height between them. See the figure in step 3. 3–57 CSA8000 & TDS8000 User Manual...

  • Page 129: Customizing The Display

    End of Procedure Customizing the Display Why Use? 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. 3–58 CSA8000 & TDS8000 User Manual...

  • Page 130: Table 3-5: Customizable Display Attributes

    Except for “Shortcut,” the Menu Names refer to the menus found in the Menu bar at the top of the instrument screen. The shortcut menu for a waveform can be displayed by right clicking on a displayed waveform or on its icon, which is displayed in the waveform bar (left of the graticule). 3–59 CSA8000 & TDS8000 User Manual...

  • Page 131: Normal And Persistence Displays

    Linear interpolation is useful for many waveforms such as pulse trains. None turns interpolation off. Only points actually sampled appear in the displays of waveform records. 3–60 CSA8000 & TDS8000 User Manual...

  • Page 132: To Set Display Styles

    Check Vectors to turn on display lines between waveform dots; uncheck to display only dots. Select an Interpolation mode from the pulldown list. Choose from Sin(x)/x, Linear, or None. 3–61 CSA8000 & TDS8000 User Manual...

  • Page 133: To Customize The Graticule And Waveforms

    Î Î Î waveform. Î Î Î If the source to be measured is in the Mag1 or Mag2 See page 3–23 for acquisition setup and page 3–45 for trigger setup. view, turn that view on. 3–62 CSA8000 & TDS8000 User Manual...
  • Page 134 Choose Color Grade from the menu that pops up. Color grading a waveform is one of several instrument operations that uses a waveform database. There are two available, so no more than two waveforms can be color graded at the same time. 3–63 CSA8000 & TDS8000 User Manual...
  • Page 135 16. Click the Help button in the Display Setup dialog box See Accessing Online Help on page 3–145 for to access a context-sensitive overview of the display overview of the online help system. controls and their set up. End of Procedure 3–64 CSA8000 & TDS8000 User Manual...

  • Page 136: Measuring Waveforms

    NOTE. You can also make graticule measurements, counting graticule divisions and multiplying them by the vertical or horizontal scales set for the waveform you are measuring. Graticule Readouts Cursors Measurement Readouts Cursor Readouts Figure 3–18: Graticule, cursor and automatic measurements 3–65 CSA8000 & TDS8000 User Manual...

  • Page 137: Taking Automatic Measurements

    Annotate Waveforms On Screen. You can turn on annotations that mark character- ization levels that each measurement uses to compute results. See Figure 3–19. Annotations intersect to indicate the area determining measurement Figure 3–19: Measurement annotations on a waveform 3–66 CSA8000 & TDS8000 User Manual...

  • Page 138: Use Databases As Sources

    3–66) and cannot use gates or user-defined High/Low methods (see page 3–69). Keys to Using The key points that follow describe operating considerations for setting up automatic measurements to obtain the best measurement results. 3–67 CSA8000 & TDS8000 User Manual...

  • Page 139: Measurement Selection

    High (Top) or Low (Bottom) for a waveform influence the fidelity of amplitude and aberration measurements. For many of the automatic measure- ments supported, the instrument automatically determines these levels and disables all or some of the High/Low tracking method controls (for example, 3–68 CSA8000 & TDS8000 User Manual...

  • Page 140: High/Low Tracking Method

    Low (Mode) Low (Mean) Low (Min/Max) Figure 3–20: High/Low tracking methods Mean (of Histogram) sets the values statistically. Using a histogram, it selects the mean or average value derived using all values either above or 3–69 CSA8000 & TDS8000 User Manual...

  • Page 141: Reference Levels Method

    The instrument provides the following four calculation methods; refer to Figure 3–21 as you read about each method: 1. Relative Reference is calculated as percentage of the High/Low range. 2. High Delta Reference is calculated as absolute values from the High Level. 3–70 CSA8000 & TDS8000 User Manual...

  • Page 142: Default Methods

    High/Low-tracking and the reference-level-calculation methods used—can be set for each measurement and its waveform source in the Meas Setup dialog box. If you do not set the methods individually, the instrument uses its default character- ization methods. 3–71 CSA8000 & TDS8000 User Manual...

  • Page 143: To Take Automatic Measurements

    See page 3–23 for acquisition setup and page 3–45 for trigger setup. Select the Use the Vertical buttons to select the waveform to be waveform measured. The waveform may be a channel, reference, or math waveform. 3–72 CSA8000 & TDS8000 User Manual...
  • Page 144 Show Annotations from the menu as shown at right. To see statistics 6. Right click on any measurement readout to display its context menu. Select Show Statistics to display measurement statistics in the measurement readout. 3–73 CSA8000 & TDS8000 User Manual...
  • Page 145 12. See Appendix B: Automatic Measurements Supported, on page B–1 for a list of the measurements and their See page 3–145 to learn about using online help. definitions. End of Procedure 3–74 CSA8000 & TDS8000 User Manual...

  • Page 146: To Localize A Measurement

    Tip. Values are entered as a % of the waveform, displayed from left to right. If no keyboard is installed, access the virtual keyboard and use the touch screen to enter values. 3–75 CSA8000 & TDS8000 User Manual...
  • Page 147 Measuring Waveforms Overview To gate a measurement (Cont.) Related control elements and resources Gate G1 Gate G2 End of Procedure 3–76 CSA8000 & TDS8000 User Manual...

  • Page 148: Table 3-6: Cursor Functions (Types)

    Waveform cursors measure both voltage and time. Each cursor is, Trigger point in effect, both a vertical and horizontal cursor. Neither of these paired cursors can be moved off the waveform. Note that sources can have different volts/div settings. Waveform Cursors 3–77 CSA8000 & TDS8000 User Manual...

  • Page 149: What Sources Can I Measure?

    Up to the time you turn cursors on, you can select a waveform on screen to use it as the source for the cursors. 3–78 CSA8000 & TDS8000 User Manual...

  • Page 150: Cursors Can Treat Sources Independently

    Vertical Cursors Measure from the Trigger Point. Remember that each vertical cursor measures the time from the trigger source to itself. This relationship is shown in Figure 3–23 on page 3–80. 3–79 CSA8000 & TDS8000 User Manual...

  • Page 151: Table 3-7: Cursor Units

    If the v1 and v2 units do not match, the v readout defaults to the units used by the v1 readout; if the t1 and t2 units do not match, the t readout units defaults to t1 readout units. 3–80 CSA8000 & TDS8000 User Manual...

  • Page 152: To Take A Cursor Measurement

    Tip. The cursor readout indicates the source time base and waveform for the selected cursor; in this case, the main time base, M1, and channel 1 C1. 3–81 CSA8000 & TDS8000 User Manual...

  • Page 153: To Set The Cursor Sources

    See page 3–23 for acquisition setup and page 3–45 for trigger setup. time base, turn that time base on. Display the Cur- From the application menu bar, select Setup, and then sor Setup dia- select Cursors. See right. log box 3–82 CSA8000 & TDS8000 User Manual...

  • Page 154: Optimizing Measurement Accuracy

    NOTE. After first installing a sampling module(s) or moving a sampling module from one compartment to another, you should run compensation from the Utilities menu to ensure the instrument meets it specifications. 3–83 CSA8000 & TDS8000 User Manual...

  • Page 155: To Compensate The Instrument And Modules

    From the application menu bar, select Utilities, and then Compensation select Compensation. See right. dialog box In the Compensation dialog box, the main instrument (mainframe) and sampling modules are listed. The temperature change from the last compensation is also listed. See below. 3–84 CSA8000 & TDS8000 User Manual...
  • Page 156 If Fail appears as Status, rerun the compensation. If Fail status continues after rerunning compensation and you have allowed warm up to occur, the module or main instrument may need service. End of Procedure 3–85 CSA8000 & TDS8000 User Manual...
  • Page 157 (or are as close as possible). If you cannot align the edges completely, try selecting the reference channel and adjusting its deskew. See right. 3–86 CSA8000 & TDS8000 User Manual...

  • Page 158: To Perform Dark-Level And User Wavelength Gain Compensations

    Î Î Î Î Î Î Î Î continuously. Î Î Î See the sampling-module User Manuals for sampling module installation. Select the Use the Vertical buttons to select the channel to be waveform compensated. 3–87 CSA8000 & TDS8000 User Manual...
  • Page 159 See below. Press the OK button to execute the compensation. Repeat steps 2, 6, and 7 for any additional optical channels you want to compensate. End of Procedure 3–88 CSA8000 & TDS8000 User Manual...

  • Page 160: Creating Math Waveforms

    This instrument supports mathematical combination and functional transforma- tions of waveforms that it acquires. Figure 3–24 shows this concept: Channel waveform Math expression Math waveform (C2) (function(source)) (M1) Diff(C2) Figure 3–24: Functional transformation of an acquired waveform 3–89 CSA8000 & TDS8000 User Manual...

  • Page 161: Why Use?

    Waveform Databases as Sources. If you assign a channel to a waveform database and then use the channel in a math-waveform expression, the data currently acquired in the channel is used, not the data accumulated in the waveform database over time. 3–90 CSA8000 & TDS8000 User Manual...

  • Page 162: Table 3-8: Math Expressions And The Math Waveforms Produced

    Sources. Math Waveforms can incorporate the following sources: Channel waveforms Reference waveforms Measurement scalars (automated measurements) that measure channel or reference waveforms in any time base Fixed scalars that you enter as numerical constants in expressions 3–91 CSA8000 & TDS8000 User Manual...

  • Page 163: Source Dependencies

    <Expression> := <UnaryExpression> | <BinaryExpression> <UnaryExpression> := <UnaryOperator> ( <Term> ) | <UnaryOperator> ( <Expression> ) <BinaryExpression> := <Term> <BinaryOperator> <Term> | <Scalar> <BinaryOperator> <Term> | <Term> <BinaryOperator> <Scalar> <Term> := <Waveform> | ( <Expression> ) 3–92 CSA8000 & TDS8000 User Manual...

  • Page 164: To Define A Math Waveform

    Display Press the Vertical MATH button twice if it is unlit, once if the Math lighted, to display the Define Math dialog box. dialog box 3–93 CSA8000 & TDS8000 User Manual...
  • Page 165 Avg( function. Only affect waveforms if the Avg( function is used. Filter Risetime. Set to limit risetime to improve TDR measurement results. Filter Mode. Choose Centered or Shifted for causal or noncausal filtering. 3–94 CSA8000 & TDS8000 User Manual...

  • Page 166: Operations On Math Waveforms

    You can adjust these controls for the source waveforms and your adjustments will reflect in the math waveform as the sources update. You can also magnify math waveforms using the Mag1 or Mag2 derived time bases. 3–95 CSA8000 & TDS8000 User Manual...

  • Page 167: Keys To Using

    As is true for channel and reference waveforms, turning a math waveform on or off in any time base display, Main, Mag1, or Mag2, also turns it on or off in all the time bases. 3–96 CSA8000 & TDS8000 User Manual...

  • Page 168: To Use Math Waveforms

    Tip. You can’t adjust horizontal scale, position, and sample density (resolution) of math waveforms. If adjusting these settings affect sources for a math waveform, the adjustment will be reflected in the math waveform. 3–97 CSA8000 & TDS8000 User Manual...
  • Page 169 Tip. For more control of your measurement, go to the Setup menu (in the application menu bar) and select Measurements. Click the Help button in the Measurements Setup dialog box that displays for more information. 3–98 CSA8000 & TDS8000 User Manual...
  • Page 170 V of the integral math waveform, which could be used to compute its area ( vdt). End of Procedure For more information on taking automatic and cursor measurements of wave- forms, see Measuring Waveforms on page 3–65. 3–99 CSA8000 & TDS8000 User Manual...
  • Page 171 Creating Math Waveforms 3–100 CSA8000 & TDS8000 User Manual...

  • Page 172: Data Input And Output

    What’s Special? Some features of note follow: 3–101 CSA8000 & TDS8000 User Manual...

  • Page 173: Commenting

    Avoiding Setup/Waveform Mismatches. Saved setups may contain settings inappropriate for waveforms currently in your instrument. For example, you might have saved a setup that displayed a fiber channel mask, such as FC531, for 3–102 CSA8000 & TDS8000 User Manual...

  • Page 174: Avoiding Setup And Sampling Module Mismatches

    To Save Your Setup Use the procedure that follows to save a setup to the instrument hard disk, a floppy disk, or third-party storage device. 3–103 CSA8000 & TDS8000 User Manual...
  • Page 175 See below. Name a destina- Use the Save in: drop-down list and buttons (see right) tion to navigate to the directory in which to save your setup. 3–104 CSA8000 & TDS8000 User Manual...
  • Page 176 10. For more help on saving setups, click the Help button For more information in the Setup dialog box to access contextual help on screen. See page 3–145 to learn about using online help. End of Procedure 3–105 CSA8000 & TDS8000 User Manual...

  • Page 177: To Recall Your Setup

    (See below.) Name a Use the Look in: drop down list and buttons (see right) destination to navigate to the directory which contains a setup that you want to recall. 3–106 CSA8000 & TDS8000 User Manual...
  • Page 178 For more For more help on recalling setups, click the Help information button in the dialog box to display contextual help on screen. See page 3–145 to learn about using online help. End of Procedure 3–107 CSA8000 & TDS8000 User Manual...

  • Page 179: Saving And Recalling Waveforms

    What’s Excluded? You cannot recall into a channel or a math waveform. The instrument recalls each waveform into one of the reference waveform locations (R1-R8). Also, you cannot save and recall waveform databases. 3–108 CSA8000 & TDS8000 User Manual...

  • Page 180: To Save Your Waveform

    (saving to file) or for selecting a reference (saving to one of R1-R8). It also includes a field for adding your comments. See below. 3–109 CSA8000 & TDS8000 User Manual...
  • Page 181 Dir\Prefix. You can edit the path and the prefix used for the filenames as just described. All files will save into the same directory. The file path field will change to Dir\Prefix. 3–110 CSA8000 & TDS8000 User Manual...
  • Page 182 For more For more help on saving waveforms, press the Help information button in the dialog box to access the contextual online help. See page 3–145 to learn about using online help. End of Procedure 3–111 CSA8000 & TDS8000 User Manual...

  • Page 183: To Recall Your Waveform

    The Recall Waveform dialog box allows navigation to directories, lists waveform files in the directory, and provides for selection of a waveform file. Comments for selected files appear in the comment box. (See below.) 3–112 CSA8000 & TDS8000 User Manual...
  • Page 184 It can contain ment (optional) information that help you use the waveform you are about to restore (see right). Tip. Selecting a file displays any comments that were entered when the waveform was saved. 3–113 CSA8000 & TDS8000 User Manual...
  • Page 185 For more For more help on recalling waveforms, press the Help information button in the dialog box to access contextual online help. See page 3–145 to learn about using online help. End of Procedure 3–114 CSA8000 & TDS8000 User Manual...

  • Page 186: To Clear References

    Click the Clear button to delete; click the close button to dismiss the dialog box. End of Procedure 3–115 CSA8000 & TDS8000 User Manual...

  • Page 187: To Export Your Waveform

    You can only select and export one waveform at a time. You cannot include comments with your exported waveform. Your exported waveform will contain the waveform data as a series of comma separated values (no timing information, but data is sequential). 3–116 CSA8000 & TDS8000 User Manual...

  • Page 188: To Export Your Histogram

    Access to a waveform exported by the instrument. Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î See To Export Your Waveform on page 3–116. 3–117 CSA8000 & TDS8000 User Manual...
  • Page 189 Click on the row number to select the entire row chart containing your imported waveform values (see left). Select the Chart button from the toolbar (see left) or from the Insert menu. Select the entire row Access the Chart Wizard 3–118 CSA8000 & TDS8000 User Manual...
  • Page 190 For more For more help on exporting waveforms., press the information Help button in the dialog box to access contextual online help. See page 3–145 to learn about accessing online help. End of Procedure 3–119 CSA8000 & TDS8000 User Manual...

  • Page 191: Printing Waveforms

    2. Right click on the desktop, and select Properties from the menu that pops 3. Select the Settings tab in the Display Properties dialog box. 4. Select High Color in the Colors list box. 3–120 CSA8000 & TDS8000 User Manual...

  • Page 192: Remote Communication

    5. Click the OK button to apply your changes. If a confirmation box appears, click its OK button. 6. Click the TDS/CSA8000 button in the Windows toolbar to return the UI application to the screen. NOTE. If you print the screen infrequently, you may want to return the colors setting to 256 colors except when printing.
  • Page 193 Data Input and Output 3–122 CSA8000 & TDS8000 User Manual...

  • Page 194: Using Masks, Histograms, And Waveform Databases

    (waveform source) units. For quick edits, you can use can use the mouse or touchscreen to drag to resize and reposition the masks directly on the screen. 3–123 CSA8000 & TDS8000 User Manual...

  • Page 195: Mask-Specific Autoset

    OC12/STM4 622.08 Mb/s FC1063 Optical 1.0625 Gb/s OC18 FC133 Electrical 132.7 Mb/s 933.12 Mb/s OC24 FC266 Electrical 265.6 Mb/s 1244.2 Mb/s OC36 FC531 Electrical 531.2 Mb/s 1866.2 Mb/s OC48/STM16 FC1063 Electrical 1.0625 Gb/s 2488.3 Mb/s 3–124 CSA8000 & TDS8000 User Manual...

  • Page 196: Mask Counts

    To create a mask with a concave area, create several masks to cover the same area. Data falling into two overlapping masks is counted only once as part of the total mask hits. 3–125 CSA8000 & TDS8000 User Manual...

  • Page 197: Figure 3–27: Creating A User Mask

    Note in Figure 3–28 that a new vertex has been added to the mask shown in Figure 3–27. Since the point is added above the line, it’s added to the top. User added vertex Figure 3–28: Adding a new vertex 3–126 CSA8000 & TDS8000 User Manual...

  • Page 198: To Mask Test A Waveform

    Î Î Î Î Î Î See Display Waveforms on page 3–47 for information on displaying waveforms. Access the Mask Select Mask from the Setup menu to display the Mask Setup dialog box Setup dialog box. 3–127 CSA8000 & TDS8000 User Manual...
  • Page 199 Click the Autoset button to perform an autoset on the form to mask mask-source waveform. Tip. You can choose to autoset the mask-source waveform to the mask anytime you select a new mask standard; just check Automatic option under Autoset. 3–128 CSA8000 & TDS8000 User Manual...
  • Page 200 Restart testing 13. To restart after a Stop After condition occurs, push the front-panel CLEAR DATA front-panel button. Tip. If you want to acquire one, and only one, more waveform after the Stop After condition occurs, push the RUN/STOP front-panel button instead of CLEAR DATA. 3–129 CSA8000 & TDS8000 User Manual...

  • Page 201: To Edit A Mask

    Note: The Mask Setup dialog box and Mask Edit dialog box are both within the Mask tab. Use the Edit Mask and End Mask Edit buttons to toggle back and forth between the two Mask dialog boxes. 3–130 CSA8000 & TDS8000 User Manual...
  • Page 202 Note: When you add or delete a vertex, the Mask list is updated to show the new number of vertices for each mask. Click End Mask Edit to close the Mask Edit dialog box and return to the Mask Setup dialog box. End of Procedure 3–131 CSA8000 & TDS8000 User Manual...

  • Page 203: Counting Masks

    For example, if mask testing on a waveform database the database data is cleared and accumulation is restarted, and if mask testing on a waveform being averaged or enveloped, Clear restarts the averaging or enveloping. 3–132 CSA8000 & TDS8000 User Manual...

  • Page 204: To Create A New Mask

    Click End Mask Edit when you are finished creating your mask to apply all additions/changes and return to the Mask Setup dialog box. Read Helpful Hints (immediately following this procedure) for more information on creating masks. 3–133 CSA8000 & TDS8000 User Manual...

  • Page 205: Taking Histograms

    Any Waveform or database as Source. Histograms can be taken on all channel, math, and reference waveforms. You can also take a histogram on either one of the two waveform databases this instrument provides. 3–134 CSA8000 & TDS8000 User Manual...

  • Page 206: Continuous Operation

    Histogram Size. The maximum vertical histogram size is 400 bins. The maximum horizontal size is 500 bins. Recalling Setups. The histogram state is restored to what it was when the setup was saved. 3–135 CSA8000 & TDS8000 User Manual...

  • Page 207: To Take A Histogram

    Press Clear to reset the histogram count and to clear the data in the source waveform. Histograms track numbers of counts. Clicking Clear resets those counts to zero and begins counting from zero. 3–136 CSA8000 & TDS8000 User Manual...
  • Page 208 100,100. Tip. It is quicker to use the mouse or touchscreen to drag to size the histogram box on screen, then fine tune the values if needed with the Limit Controls. End of Procedure 3–137 CSA8000 & TDS8000 User Manual...

  • Page 209: Histogram Statistics

    Displays the number of points in the largest bin of the histogram. # of Histogram Hits Displays the number of hits within or on the histogram box. # of Waveforms Displays the number of waveforms that have contributed to the histogram. 3–138 CSA8000 & TDS8000 User Manual...

  • Page 210: Using Waveform Databases

    If both databases are assigned and you attempt to implicitly assign a waveform source to a database (for example by right clicking a waveform icon in the Waveform bar and selecting color grading), the instrument will display a notice that no databases are available. 3–139 CSA8000 & TDS8000 User Manual...

  • Page 211: Interpolation Or Vector Displays

    (vector) display. The waveform database still accumulates in the background and can be turned on later without clearing the database. 3–140 CSA8000 & TDS8000 User Manual...

  • Page 212: To Set Up A Waveform Database

    See right. See Figures 3–30 and 3–31 on next page to see what both normal and waveform database waveform data look like on the graticule. End of Procedure 3–141 CSA8000 & TDS8000 User Manual...

  • Page 213: Figure 3–30: Normal Vector View Of A Waveform

    “added” to the display as it is acquired. Figure 3–30: Normal vector view of a waveform Figure 3–31: Waveform database view of a waveform 3–142 CSA8000 & TDS8000 User Manual...

  • Page 214: To Customize The Database Display

    Examples 4. See the illustrations on the next page to see examples of waveform database data using different display options. 3–143 CSA8000 & TDS8000 User Manual...

  • Page 215: Figure 3–32: Waveform Database Data Using The Intensity Display Option

    Invert Color/Intensity turned on, this data appears much darker, allowing you to see the data more clearly. Figure 3–32: Waveform database data using the Intensity display option End of Procedure 3–144 CSA8000 & TDS8000 User Manual...

  • Page 216: Accessing Online Help

    2–2 for an description of the documents for this instrument and their purposes. Use the online programmers guide, either displayed on the instrument screen, or on any windows-equipped PC, for support on operating the instrument from the GPIB. 3–145 CSA8000 & TDS8000 User Manual...

  • Page 217: How To Use Online Help

    After clicking, the mouse pointer changes to the following icon: Now click the control you want described. A bubble pops up describing the control. See below. What’s This? button for main display What’s This? button for dialog boxes 3–146 CSA8000 & TDS8000 User Manual...
  • Page 218 Most dialog boxes, whether setup or other types, have a contextual Help button as shown right. Click the button to open the overviews help system with an overview of the dialog box that’s currently displayed. See below. Click or touch here 3–147 CSA8000 & TDS8000 User Manual...
  • Page 219 From the online help finder (see below), choose from the three tabs. Click the book icons to expose topic titles, and then click a topic to highlight it. Click the Display button to open the topic in a help window. 3–148 CSA8000 & TDS8000 User Manual...
  • Page 220 10. Select a procedure from the list that displays. The procedure will display in a help window that is sized and located to minimize interference with the controls needed to perform it. See below. 3–149 CSA8000 & TDS8000 User Manual...
  • Page 221 Once the word list generation finishes, future accesses of the find tab will immediately access a pane for searching with full text search without requiring the word to be regenerated. 3–150 CSA8000 & TDS8000 User Manual...
  • Page 222 Tip. To switch between online help and the application, you can hold down the ALT key while you press Tab repeatedly to alternate between bringing help to the front and the application. Click for Windows 98 Help End of Procedure 3–151 CSA8000 & TDS8000 User Manual...
  • Page 223 Accessing Online Help 3–152 CSA8000 & TDS8000 User Manual...

  • Page 224: Cleaning The Instrument

    (Use only deionized water when cleaning the menu buttons or front-panel buttons.) Before using any other type of cleaner, consult your Tektronix Service Center or representative. Flat Panel Display Cleaning The instrument display is a soft plastic display and must be treated with care during cleaning.
  • Page 225 If the display is very dirty, moisten the wipe with distilled water or a 75% isopropyl alcohol solution and gently rub the display surface. Avoid using excess force or you may damage the plastic display surface. 3–154 CSA8000 & TDS8000 User Manual...

  • Page 226: Table A-1: System - Signal Acquisition

    Please refer to the user manual that shipped with your module for those specifications. This appendix contains the specifications for the CSA8000 Communica- tions Signal Analyzer, and the TDS8000 Digital Sampling Oscilloscope. All specifications are guaranteed unless noted as “typical.”...

  • Page 227: Table A-2: System - Timebase

    (Contribution from 80E04 optimized mode sampling module is included in specification.) Range Time Interval Accuracy 20 ps/div 1 ps + 1% of interval 21 ps/div 8 ps + 0.1% of interval A–2 CSA8000 & TDS8000 User Manual...

  • Page 228: Table A-3: System - Trigger

    Variable trigger hold Adjustable 5 s to 50 ms in 0.5 ns increments. When External off range and resolu- Prescaled Trigger mode is used, holdoff period applies to the Prescaled tion input divided by 8. A–3 CSA8000 & TDS8000 User Manual...
  • Page 229 External direct delay 1.6 ps RMS + 0.05 ppm of horizontal position, typical jitter, locked to inter- nal 10 MHz reference mode (typical) External direct trigger 167 ps, typical minimum pulse width A–4 CSA8000 & TDS8000 User Manual...
  • Page 230 External prescaled 1.6 ps RMS + 0.05 ppm of horizontal position, typical delay jitter, locked to internal 10 MHz refer- ence mode (Typical) External prescaled Enhanced Triggering, Metastability Reject on: Zero, typical trigger metastability A–5 CSA8000 & TDS8000 User Manual...

  • Page 231: Table A-4: System - Environmental

    30 minutes total) non-operating. Atmospherics Temperature: Operating: 0 C to +40 C 0 C to +35 C for 80E0X modules on Tektronix part number 012-1569-00 2-meter extender Nonoperating: –22 C to +60 C Relative humidity: Operating: 20% to 80%, with a maximum wet bulb temperature...

  • Page 232: Table A-5: Csa8000 And Tds8000 - Power Consumption And Cooling

    Appendix A: Specifications Table A–5: CSA8000 and TDS8000 – Power consumption and cooling Specifications Characteristics Power requirements 600 watts Cooling requirements Six fans with speed regulated by internal temperature sensors. A 2” (51 mm) clearance must be maintained on the bottom, left side, and right side of the instrument for forced air flow.

  • Page 233: Table A-7: Csa8000 And Tds8000 - Data Storage

    Appendix A: Specifications Table A–7: CSA8000 and TDS8000 – Ports (Cont.) Specifications Characteristics PS/2 Keyboard and PS/2 compatible keyboard and mouse connectors. Mouse Interface LAN interface RJ–45 LAN connector supporting 10 base-T and 100 base-T External audio con- External audio jacks for MIC IN and LINE OUT...

  • Page 234: Table A-8: Csa8000 And Tds8000 - Mechanical

    Appendix A: Specifications Table A–8: CSA8000 and TDS8000 – Mechanical Specifications Characteristics Construction material Chassis: Aluminum alloy Cosmetic covers: PC/ABS thermoplastic Front panel: Aluminum alloy with PC/thermoplastic overlay Module doors: Nickel plated stainless steel Bottom cover: Vinyl clad sheet metal Circuit boards: Glass-laminate.
  • Page 235 U.S. Nationally Recognized UL3111-1 Standard for electrical measuring and test equipment. Testing Laboratory Listing, mainframe Canadian Certification, CAN/CSA C22.2 No. 1010.1 Safety requirements for electrical equipment for measurement, mainframe control, and laboratory use. A–10 CSA8000 & TDS8000 User Manual...
  • Page 236 Class 1 (as defined in IEC 1010-1, Annex H) – grounded product Overvoltage Category Overvoltage Category II (as defined in IEC 1010-1, Annex J) Pollution Degree Pollution Degree 2 (as defined in IEC 1010-1). Note: Rated for indoor use only. A–11 CSA8000 & TDS8000 User Manual...
  • Page 237 Appendix A: Specifications A–12 CSA8000 & TDS8000 User Manual...

  • Page 238: Table B-1: Supported Amplitude Measurements

    See High/Low Method on page 3–69. Measured over the entire waveform or gated region. Amplitude measurement. The midpoint level between the 0% and 00% amplitude levels. Measured over the entire waveform or gated region. High B–1 CSA8000 & TDS8000 User Manual...

  • Page 239: Table B-2: Supported Area Measurements

    Area measurement. The area over the first cycle in the waveform, or the first cycle in the gated region, vertical units over horizontal units, such as volt-seconds and watt-seconds. Area measured above ground is positive; area below ground is negative. B–2 CSA8000 & TDS8000 User Manual...

  • Page 240: Table B-3: Supported Eye-Pattern/Optical Measurements

    Eye pattern/optical measurement. The RMS value of the edge jitter in the current horizontal units. Jitter RMS = TCross1 sigma Jitter Pk–Pk Eye pattern/optical measurement. The peak-to-peak value for the edge jitter in the current horizontal units current horizontal units Jitter PP = TCross1 B–3 CSA8000 & TDS8000 User Manual...
  • Page 241 To choose between jitter at the eye crossing or the mid ref crossing, use the Jitter At selection to choose Eye Cross or Mid Ref for your jitter measurement. To choose between noise at PTop or PBase, use the Noise At selection to choose High (top) or Low (base) for your noise measurement. B–4 CSA8000 & TDS8000 User Manual...

  • Page 242: Table B-4: Supported Timing Measurements

    Timing measurement. Time taken for the leading edge of the first pulse in the waveform or gated region to rise from a Low Ref value (default = 10%) to a High Ref value (default = 90%) of its final value. B–5 CSA8000 & TDS8000 User Manual...

  • Page 243: Levels Used In Taking Amplitude, Timing, And Area Measurements

    Typically set to 10%. You can choose how this level is set; see Reference Levels Method on page 3–70. Mid2Ref — the middle reference level for a second waveform (or the second middle reference of the same waveform). Used in two-waveform time measure- B–6 CSA8000 & TDS8000 User Manual...

  • Page 244: Levels Used In Taking Eye Measurements

    PTop and PBase. These areas are used with a specified sample size to statistical- ly measure the following values: PTop , the mean value of PTop mean PTop , the standard deviation of PTop sigma B–7 CSA8000 & TDS8000 User Manual...
  • Page 245 The DCD values are horizontal values associated with the rightmost crossing point at 50% of the eye height. These areas are used to establish the DCD pk-pk the horizontal peak-to-peak deviation of the left crossing point at half the height of the eye. B–8 CSA8000 & TDS8000 User Manual...

  • Page 246: Appendix C: Insert Sampling Module User Manuals Here

    Appendix C: Insert Sampling Module User Manuals Here You can insert the User manuals for the electrical and/or optical sampling modules here. C–1 CSA8000 & TDS8000 User Manual...
  • Page 247 Appendix C: Sampling Module User Manuals C–2 CSA8000 & TDS8000 User Manual...
  • Page 248 Automatic trigger mode A trigger mode that causes the instrument to automatically acquire if triggerable events are not detected within a specified time period. Glossary–1 CSA8000 & TDS8000 User Manual...
  • Page 249 This position is ground when offset is set to 0 V; otherwise, it is ground plus offset. Channel number The number assigned to a specific signal input channel of an installed Glossary–2 CSA8000 & TDS8000 User Manual...
  • Page 250 The act of changing your selection either by clicking (mouse) or touching (touchscreen) a point on the screen and pulling across the screen while holding down the key (mouse) or maintaining contact with your finger (touchscreen). Glossary–3 CSA8000 & TDS8000 User Manual...
  • Page 251 IEEE 488 bus. It transfers data with eight parallel data lines, five control lines, and three handshake lines. Graticule A grid on the display screen that creates the horizontal and vertical axes. You can use it to visually measure waveform parameters. Glossary–4 CSA8000 & TDS8000 User Manual...
  • Page 252 Interpolation The way the instrument calculates additional values to display when the acquired record length is less than 500 points. The instrument has two interpolation options: linear or sin(x)/x interpolation. Glossary–5 CSA8000 & TDS8000 User Manual...
  • Page 253 Measurement See Automatic Measurement. Measurement statistics The accumulation of a history of individual measurement readouts, showing the mean and standard deviation of a selected number of samples. Glossary–6 CSA8000 & TDS8000 User Manual...
  • Page 254 Reference memory Memory in an instrument used to store waveforms or settings. You can use that waveform data later for processing. The instrument saves the data even when the instrument is turned off or unplugged. Glossary–7 CSA8000 & TDS8000 User Manual...
  • Page 255 View. The time base determines when and how long to acquire record points. Trigger An event that marks time zero in the waveform record. It results in acquisi- tion of the waveform as specified by the time base. Glossary–8 CSA8000 & TDS8000 User Manual...
  • Page 256 The instrument also displays the value of both cursors with respect to the waveform ground and between the cursors. Glossary–9 CSA8000 & TDS8000 User Manual...
  • Page 257 The underlying operating system on which this instrument runs. YT format The conventional display format. It shows the amplitude of a waveform record (on the vertical axis) as it varies over time (on the horizontal axis). Glossary–10 CSA8000 & TDS8000 User Manual...
  • Page 258 3–23 Positive Crossing, B–5 Acquisition settings, purpose, 3–20 Positive Duty Cycle, B–5 Active cursor, Glossary–1 Positive Width, B–5 Address, Tektronix, xv Quality Factor, B–4 Aliasing, 3–22, Glossary–1 Rise Time, B–5 Amplitude measurement, B–1 Index–1 CSA8000 & TDS8000 User Manual...
  • Page 259 Measurements, 2–6 Controls bar, 2–6 Menu, 2–6 Coupling, Glossary–3 Readouts, 2–6 Crossing % measurement, B–3 Status, 2–6 CSA8000, description, 1–1 Tool, 2–6 Cursor, measurements, 3–77–3–79 Waveform, 2–6 Cursor Measurements, how to set sources for, 3–82 Index–2 CSA8000 & TDS8000 User Manual...
  • Page 260 3–62 and trigger source inputs, 3–41 how to set style of, 3–61 Exporting waveforms, 3–116 limit readouts, defined, 3–48 Extinction Ratio (%) measurement, B–3 map—Main & Mag views, 2–9 Extinction Ratio (DB) measurement, B–3 Index–3 CSA8000 & TDS8000 User Manual...
  • Page 261 Initialize, Glossary–6 HighRef, measurement level, Glossary–5 Input/Output (front panel), map, 2–10 Histograms Input/Output (rear panel), map, 2–11 continuous operation of, 3–135 Inspection and cleaning counting, 3–135 exterior, 3–153 editing features, 3–134 flat panel display, 3–153 Index–4 CSA8000 & TDS8000 User Manual...
  • Page 262 3–90, 3–95 LowRef, measurement level, Glossary–6 why use, 3–90 Maximum measurement, B–2 Mean measurement, B–2 Measurement Mag1 and Mag2, Views, 3–53 +Overshoot, B–2 Manuals –Overshoot, B–2 part numbers, 1–35 AC RMS, B–1 Index–5 CSA8000 & TDS8000 User Manual...
  • Page 263 HighRef, Glossary–5 Negative Overshoot measurement, B–2 LowRef, Glossary–6 Negative Width measurement, B–5 MidRef, Glossary–7 Noise Pk-Pk measurement, B–4 MidRef2, Glossary–7 Noise RMS measurement, B–4 Measurements Normal amplitude category, B–1 display mode, 3–60 area category, B–2 Index–6 CSA8000 & TDS8000 User Manual...
  • Page 264 To Reset the Instrument, 3–12 infinite, 3–60 To Save Your Setup, 3–103 variable, 3–60 To Save Your Waveform, 3–109 Phase measurement, B–5 To Set Acquisition Modes, 3–23 Phone number, Tektronix, xv To Set Display Styles, 3–61 Index–7 CSA8000 & TDS8000 User Manual...
  • Page 265 3–108 Reference waveforms, Glossary–8 why use, 3–108 how to clear, 3–115 Scale, considerations for setting, 3–6 Related Manuals, xiii SELECT button, Glossary–8 Release notes, software, 1–15 Selected cursor, Glossary–1 Remote communication, 3–121 Index–8 CSA8000 & TDS8000 User Manual...
  • Page 266 3–37 specifications, A–1 purpose, 3–37 Standard, masks supported, 3–124 why use, 3–37 Standard accessories, 1–35 Statistics, for histograms, 3–138 Status bar, 2–6 System, diagnostics, 1–17 Update, software, 1–3 System Rebuild CD, 1–3 Index–9 CSA8000 & TDS8000 User Manual...
  • Page 267 3–51 defining waveforms for, 3–50 that magnify, 3–53 keys to using, 3–50 time base, Glossary–9 Waveform record, 3–27 using multiple, 3–51 definition applied to all channels, 3–19 Views, multiple, 3–49 illustrated, 3–28 Index–10 CSA8000 & TDS8000 User Manual...
  • Page 268 3–50 YT format, Glossary–10 purpose of mask testing, 3–123 purpose of saving/recalling, 3–108 purpose of taking histograms of, 3–134 Reference, Glossary–8 testing and statistical tools, 3–123 Zoom, fast access to, 3–49 Index–11 CSA8000 & TDS8000 User Manual...
  • Page 269 Index Index–12 CSA8000 & TDS8000 User Manual...

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