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Tektronix TDS 500C Manual

Digitizing oscilloscopes

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User Manual

TDS 500C, TDS 600B & TDS 700C

Digitizing Oscilloscopes

070-9869-00

This document applies for firmware version 1.0

and above.

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Page 1 User Manual TDS 500C, TDS 600B & TDS 700C Digitizing Oscilloscopes 070-9869-00 This document applies for firmware version 1.0 and above.
Page 2 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 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.
Page 5 ......... . 3–76 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 6 ....... F–1 Glossary Index TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 7: Table Of Contents
Figure 3–13: Real-Time Sampling ......3–26 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 8 Figure 3–50: Delayed Runs After Main ......3–107 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 9 ....... . . 3–181 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 10 D–3 Figure D–2: A6303 Current Probe Used in the AM 503S Opt. 03 . . . D–5 Figure F–1: Equipment Needed to Run the Example Programs ..F–1 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 11 ......3–32 Table 3–4: TDS 500C and TDS 700C Sampling mode selection (when fit to screen is off) .
Page 12 Table of Contents viii TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 13 Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present. Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel. TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 14 CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION Double High Voltage (Earth) Terminal Refer to Manual Insulated TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 15 Preface This is the User Manual for the TDS 500C, TDS 600B, & TDS 700C Digitizing Oscilloscopes. The chapter Getting Started briefly describes the TDS Oscilloscope, prepares you to install it, and tells you how to put it into service.
Page 16 Preface Default Model This manual documents the TDS 500C, TDS 600B, & TDS 700C Digitizing Oscilloscopes. Take special note of the following conventions: Some TDS models have two auxiliary channels called AUX 1 and AUX 2, instead of CH 3 and CH 4. References to these channels default to CH 3 and CH 4;...
Page 17 Sometimes you may have to make a selection from a pop-up menu: Press TRIGGER MENU Type (main) Edge (pop-up). In this example, you repeatedly press the main menu button Type until Edge is highlighted in the pop-up menu. xiii TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 18 Preface TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 19 Getting Started...
Page 20 Product Description The Tektronix TDS Oscilloscope is a superb tool for acquiring, displaying, and measuring waveforms. Its performance addresses the needs of both benchtop lab and portable applications with the following features: A maximum sample rate of up to 5 GS/s per channel, depending on the model (see Table 1–1 Key Features and Differences of by Models)
Page 21: Table 1-1: Key Features And Differences Of Models
Advanced digital signal processing provides FFTs, integrals, and derivatives of waveforms. See Option 2F on page A–4. Std. denotes a standard product feature as opposed to a feature included as part of an option. GPIB I/O included with all models. 1–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 22 Product Description Product Specification The product specification is found in the technical reference TDS 500C, TDS 600B, & TDS 700C Technical Reference (Performance Verification and Specifications) that is shipped as a standard accessory with the TDS Oscillo- scope. 1–3 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 23 Product Description 1–4 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 24 The standard-accessory probes and quantities shipped for these oscilloscopes are listed on in Standard Accessories on page A–4. For a list of optional-accessory probes for all TDS 500C, TDS 600B, and TDS 700C oscilloscope models, see Accessory Probes on page A–5.
Page 25 1. Be sure you have the appropriate operating environment. Specifications for temperature, relative humidity, altitude, vibrations, and emissions are included in the TDS 500C, TDS 600B, & TDS 700C Technical Reference (Performance Verification and Specifications) manual (Tektronix part number 070-9874-xx).
Page 26: Figure 1-1: Rear Panel Controls Used In Start Up
AC power to the instrument. 2. If the oscilloscope is not powered on (the screen is blank), push the front-panel ON/STBY button to toggle it on (see Figure 1–2). 1–7 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 27: Figure 1-2: On/Stby Button
If the self test fails, call your local Tektronix Service Center. Depending on the type of failure, you may still be able to use the oscilloscope before it is serviced.
Page 28 Operating Basics...
Page 29 Example 4: Saving Setups To explore these topics in more depth and to read about topics not covered in this section, see Reference. A list of the topics covered begins on Page 3–1. 2–1 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 30 Overview 2–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 31 Front Panel Map — Left Side File System, page 3–160 Side Menu Buttons, page 2–7 CLEAR MENU Removes Menus from the Display ON/STBY Switch, Main Menu Buttons, page 1–7 page 2–7 2–3 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 32 Zoom, page 3–49 Ground Triggering, page 3–63 Delay Triggering, page 3–106 Edge Triggering, page 3–72 Horizontal Controls, Logic Triggering, page 3–76 page 3–19 Pulse Triggering, page 3–89 Comm Triggering, page 3–103 2–4 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 33 CH3 – or AX1 – @ 10 mV/div) AUX TRIGGER INPUT – (Provides Auxiliary Trigger Signal Input) MAIN TRIGGER OUTPUT – (Provides Main Trigger (TTL) Output) DELAYED TRIGGER OUTPUT – (Provides Delayed Trigger (TTL) Output) 2–5 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 34 Vertical scale, Trigger parameters, page 3–15 page 3–71 The main menu with Horizontal scale and time choices of major actions base type, page 3–19 2–6 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 35 Press one of these buttons to select from side menu (if displayed). If side menu item has an adjustable value (shown in reverse video), adjust it with the general purpose knob or keypad. 2–7 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 36 Press it again screen. to make selection. Alternatively, press SHIFT first to make selection in the opposite direction. A pop-up selection changes the other main menu titles. 2–8 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 37 P6245), connect from the CH 1 connector of the oscilloscope to the PROBE COMPENSATION connectors. (See Figure 2–1.) NOTE. See Appendix A: Options and Accessories for optional probes you can order and use with this product. 2–9 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 38: Figure 2-1: Connecting A Probe For The Examples (P6245 Shown)
(You can reset the oscilloscope anytime you begin a new task and need to “start fresh” with known default settings.) 1. Press the save/recall SETUP button to display the Setup menu. (See Figure 2–2.) 2–10 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 39: Figure 2-2: Setup Button Location
Recall Factory Setup selection. (See Figure 2–3.) 3. Press the button to the right of the OK Confirm Factory Init side menu item. 2–11 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 40: Figure 2-4: Trigger Controls
This indicator points to the ground level for the channel when its vertical offset is set to 0 V in the vertical menu; when vertical offset is not set to 0 V, it points to the vertical offset level. 2–12 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 41: Figure 2-5: The Display After Factory Initialization
Do the following tasks to learn how to adjust a waveform and how to autoset the TDS Oscilloscope. 2–13 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 42: Figure 2-6: The Vertical And Horizontal Controls
3. Turn the horizontal SCALE knob one click clockwise. Observe the time base readout at the bottom of the display. The time base should be set to 200 s/div now, and you should see two complete waveform cycles on the display. 2–14 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 43: Figure 2-7: Trigger Controls
Leave the trigger level in that untriggered state. MAIN LEVEL Knob Figure 2–7: TRIGGER Controls 2. Press AUTOSET (see Figure 2–8) and observe the stable waveform display. 2–15 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 44: Figure 2-8: Autoset Button Location
Figure 2–9 shows the display after pressing AUTOSET. If necessary, you can adjust the waveform now by using the knobs discussed earlier in this example. Figure 2–9: The Display After Pressing Autoset 2–16 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 45: Figure 2-10: Display Signals Requiring Probe Compensation
2–11.) (CH 3 and CH 4 will be replaced by AUX1 and AUX2 on some models; see Default Model on page xii and Differences by Model on page 1–2.) 2–17 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 46: Figure 2-11: The Channel Buttons And Lights
2. Since there is nothing connected to the CH 2 input connector, this waveform is a flat line. There are several other important things to observe: The channel readout on the display now shows the settings for both Ch1 and Ch2. 2–18 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 47 2 (near the bottom of the graticule) now shows an indicator (probes with a level 2 interface automatically select 50 , but they do not display in the readout). 2–19 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 48: Figure 2-12: The Vertical Main Menu And Coupling Side Menu
2 setting to the 1 M impedance setting of channel 1. 2. Press CH 2 (side) to toggle the selection to 1 M . That returns the coupling impedance of channel 2 to its initial state. 2–20 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 49: Figure 2-13: The Menus After Changing Channels
The channel (CH) lights now indicate channel 1. Channel 1 has become the selected channel. When you remove the last waveform, all the CH lights are turned off. 2. Press WAVEFORM OFF again to remove the channel 1 waveform. 2–21 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 50 –more– menu item brings up the other measurement selections. 7. Press Frequency (side). If the Frequency menu item is not visible, press –more– (side) repeatedly until the Frequency item appears. Then press Frequency (side). 2–22 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 51: Figure 2-14: Measure Main Menu And Select Measurement
All four measurements are displayed. Right now, they cover a part of the graticule area, including the displayed waveforms. 9. To move the measurement readouts outside the graticule area, press CLEAR MENU. (See Figure 2–15.) 2–23 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 52: Figure 2-15: Four Simultaneous Measurement Readouts
By default, the measurement system will use the 10% and 90% levels of the Reference Levels waveform for taking the rise time measurement. You can change these values to other percentages or change them to absolute voltage levels. 2–24 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 53 SHIFT button before turning the knob. When the light above the SHIFT button is on and the display says Coarse Knobs in the upper-right corner, the general purpose knob speeds up significantly. 2–25 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 54: Figure 2-16: General Purpose Knob Indicators
The numeric keypad also provides multipliers for engineering exponents, such as m for milli, M for mega, and for micro. To enter these multiplier values, press the SHIFT button, and then press the multiplier. 2–26 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 55 3. Press Remove Measrmnt (main) to remove the snapshot display. (You can also press CLEAR MENU, but a new snapshot will be executed the next time you display the Measure menu.) 2–27 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 56: Figure 2-17: Snapshot Of Channel 1
That feature lets you power on and continue where you left off without having to reconstruct the setup in effect when you powered off the oscilloscope. 2–28 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 57 (and losing forever) a saved setup, choose a setup location labeled factory. (Setup locations labeled factory have the factory setup stored as a default and can be used to store current setups without disturbing previously stored setups.) 2–29 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 58: Figure 2-18: Save/Recall Setup Menu
Positive Width (side) to add that measurement to the display. 10. TDS 500C and TDS 700C: Press MEASURE Measure (pop-up) Positive Width (side) to add that measurement to the display. 2–30 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 59 The step just performed completes the examples. You can restore the default settings by pressing SETUP Recall Factory Setup (main) OK Confirm Factory Init (side). 2–31 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 60 Tutorial 2–32 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 61 Reference...
Page 62 You should read Conventions on page xii of Preface before reading about these tasks. Each topic just listed comprises more basic operation tasks and topics. A list of these tasks follows. 3–1 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 63 3–164 Communicating with Remote Instruments ......3–174 3–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 64 ........3–215 3–3 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 65 Overview 3–4 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 66: Acquiring And Displaying
Coupling Waveforms to the Oscilloscope Tektronix produces a variety of probes and cables suitable for connecting various types of signals to the input channels of this product. This subsection covers two topics important to coupling: Probe Compensation and Input Impedance Considerations.
Page 67: Figure 3-1: How Probe Compensation Affects Signals
Acquiring and Displaying Waveforms The remaining TDS 500C, TDS 600B, and TDS 700C oscilloscopes ship with general-purpose probes — either the P6139A or the P6243, depending on the oscilloscope model. The standard-accessory probes and quantities shipped for these oscilloscopes are listed in Standard Accessories on page A–4.
Page 68: Figure 3-2: P6139A Probe Adjustment
Acquiring and Displaying Waveforms 5. TDS 500C and 700C models only: Press SHIFT ACQUIRE MENU Mode (main) Hi Res (side). 6. TDS 600B models only: Press SHIFT ACQUIRE MENU Mode (main) Average (side). Use the keypad to set Averages to 5.
Page 69: Setting Up Automatically: Autoset And Reset
Autoset automatically sets up the front panel controls based on the characteristics of the input signal. It is much faster and easier than a manual control-by-control setup. Autoset adjusts controls in these categories: Acquisition, Display, Horizontal, Trigger, and Vertical. 3–8 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 70: Table 3-1: Autoset Defaults
Changed by autoset to Selected channel Numerically lowest of the displayed channels Acquire Mode Sample Acquire Repetitive Signal (TDS 500C and 700C Models Only) Acquire Stop After RUN/STOP button only Deskew, Channel/Probe Unchanged 3–9 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 71 Vertical Scale As determined by the signal level Vertical Coupling DC unless AC was previously set. AC remains unchanged. Vertical Bandwidth Full Vertical Offset 0 volts Zoom 3–10 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 72: Selecting Channels
The channel reference indicator for the selected channel also appears in reverse video along the left side of the display. (See Figure 3–3.) 3–11 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 73: Figure 3-3: The Channel Readout
(The MORE button allows you to select internally stored Math and Ref waveforms for display and manipulation.) The selected channel is indicated by the lighting the LED above the button of the selected channel. 3–12 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 74: Figure 3-4: Waveform Selection Priority
If you turn off a channel that is a trigger source, it continues to be the trigger source even though the waveform is not displayed. 3–13 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 75: Scaling And Positioning Waveforms
Check the Vertical Readout at the bottom-left part of the display to read the Vertical Scale volts/division setting for each displayed channel (the selected channel is in inverse video). (See Figure 3–6.) 3–14 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 76: Figure 3-5: Scaling And Positioning
As you turn it counterclockwise, the scale increases allowing you to see more of the waveform but with lower resolution. 2. Turn the vertical POSITION knob. Again, note that only the selected waveform changes position. 3–15 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 77: Figure 3-6: Vertical Readouts And Channel Menu
By adjusting the vertical position, you can move the waveform up or down on the display. Adjustment of vertical position is particularly useful when you are comparing two or more waveforms. 3–16 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 78 To change the bandwidth of the selected channel: Press VERTICAL MENU Bandwidth (main) Full, 250 MHz, or 20 MHz (side). 3–17 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 79 To Check the Check the Record View to determine the size and location of the waveform Horizontal Status record and the location of the trigger relative to the display. (See Figure 3–7.) 3–18 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 80: Figure 3-7: Record View And Time Base Readouts
To change the horizontal scale and position: 1. Turn the horizontal POSITION and horizontal SCALE knobs. (See Figure 3–8.) 3–19 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 81: Figure 3-8: Horizontal Controls
You can select the delayed time base (see Delayed Triggering on page 3–106) or choose the frames on the waveform that you want to see (see Using FastFrame on page 3–59). 3–20 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 82 All TDS 500C, TDS 600B, and TDS 700C Oscilloscopes provide standard record lengths of 500, 1000, 2500, 5000, and 15000 points. For instruments shipped with Option 1M, the TDS 500C and TDS 700C Oscilloscopes provide additional extended record lengths up to 500,000 points, depending on the model.
Page 83 Use Extended Acquisition mode to acquire an extended-length acquisition Length (Option 2M Only) record. After the data is acquired, you can move to and display any portion of the data (see Figure 3–9). 3–22 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 84: Figure 3-9: Displaying An Extended Acquisition Length Record
Acq Len displays the length of the acquisition record. The oscilloscope model and the number of channels in use determines the length. 3–23 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 85: Figure 3-10: Extended Acquisition Length And Zoom
Percentage of acquisition data before start of the waveform record End of waveform record Trigger point Start of waveform record Acquisition record waveform Figure 3–10: Extended Acquisition Length and Zoom 3–24 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 86: Figure 3-11: Acquisition: Input Analog Signal, Sample, And Digitize
You can use this digital representation of the signal for display, measurements, or further processing. +5.0 V +5.0 V –5.0 V –5.0 V Input Signal Sampled Points Digital Values Figure 3–11: Acquisition: Input Analog Signal, Sample, and Digitize 3–25 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 87: Figure 3-12: Several Points May Be Acquired For Each Point Used
Real-time Sampling The two general methods of sampling are real-time and equivalent-time. The TDS 600B Oscilloscopes use only real-time sampling; the TDS 500C and TDS 700C Oscilloscopes use both real- and equivalent-time sampling. In real-time sampling, the oscilloscope digitizes all the points it acquires after one trigger event (see Figure 3–13).
Page 88 Acquiring and Displaying Waveforms Equivalent-Time Sampling A TDS 500C or TDS 700C model oscilloscope (the TDS 600B models use only real time sampling) uses equivalent time sampling to extend its sample rate over its real-time maximum sampling rate, but only under two conditions: You must have turned equivalent-time on in the Acquisition menu.
Page 89 10 ns (TDS 600B). (The setting varies with the number of channels for TDS 500C and TDS 700C models; see Table 3–4 on page 3–35.) The oscilloscope then interpolates to create the intervening points in the waveform record.
Page 90: Table 3-2: How Interleaving Affects Sample Rate
Acquiring and Displaying Waveforms Interleaving A TDS 500C or TDS 700C Oscilloscope can interleave its channels to attain higher digitizing rates without equivalent time sampling or interpolating. The oscilloscope applies the digitizing resources of unused channels (that is, channels that are turned off) to sample those that are in use (turned on). Table 3–2 lists how interleaving more than one digitizer to sample a channel extends the maximum digitizing rate.
Page 91 If you set the time base so fast that it requires real-time interpolation or equivalent-time sampling, the mode automatically changes from Peak Detect to Sample, although the menu selection will not change. 3–30 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 92 Calculates average value for Uses Sample Mode for Each Acquisition each record point over many acquisitions Use to reduce apparent noise in a repetitive signal. Figure 3–15: How the Acquisition Modes Work 3–31 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 93: Table 3-3: Additional Resolution Bits
Acquiring and Displaying Waveforms Hi Res Mode. TDS 500C and 700C models only: Hi Res mode averages all samples taken during an acquisition interval to create a record point. The average results in a higher-resolution, lower-bandwidth waveform. A key advantage of Hi Res is its potential for increasing resolution regardless of the input signal.
Page 94 Mode (main). (See Figure 3–16.) 2. TDS 600B: Press Sample, Envelope, Average, or Peak Detect (side) or ... TDS 500C and TDS 700C Models: Press Sample, Peak Detect, Hi Res, Envelope, or Average (side). (InstaVu mode must be off to use Hi Res, Envelope, or Average modes.)
Page 95 Acquiring and Displaying Waveforms NOTE. TDS 500C and 700C models only: Selecting Hi Res mode in the Acquire menu automatically reduces long record-length settings to prevent overflow of acquisition memory. Because Hi Res mode uses twice the acquisition memory used by other acquisition modes, allowing selection of the longer horizontal record lengths with Hi Res mode would cause the oscilloscope to run out of memory.
Page 96: Table 3-4: Tds 500C And Tds 700C Sampling Mode Selection
Check Table 3–4 below to determine the time base setting(s) at which the switch from real-time sampling (RT) to equivalent time sampling or interpolation (ETI) occurs for your model. Table 3–4: TDS 500C and TDS 700C Sampling mode selection (when fit to screen is off) Model TDS 754C TDS 540C TDS 520C &...
Page 97 In Envelope or Average mode, the oscilloscope will make the specified number of acquisitions to complete the averaging or enveloping task. TDS 500C and TDS 700C models only: If the oscilloscope is in equivalent- time mode and you press Single Acquisition Sequence (side), it will continue to recognize trigger events and acquire samples until the waveform record is filled.
Page 98 TRIG’D is lighted. Aliasing occurs because the oscilloscope cannot sample the signal fast enough to construct an accurate waveform record. (See Figure 3–18.) Actual High-Frequency Waveform Apparent Low-frequency Waveform Due to Aliasing Sampled Points Figure 3–18: Aliasing 3–37 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 99: Customizing The Display
This section describes how to adjust the oscilloscope display style, intensity level, graticule, and format. NOTE. TDS 500C and 700C models only: This section assumes you are using Normal acquisitions mode and gives display settings for this mode. If you select InstaVu acquisitions, procedures for making Style, Format, and Readout display settings differ and some selections are not permitted.
Page 100 In addition to choosing Intensified Samples in the side menu, the oscilloscope must be interpolating (equivalent time must be off for TDS 500C and TDS 700C models) or Zoom must be on with its horizontal expansion greater that 1X. See Interpolation on page 3–28;...
Page 101 Acquiring and Displaying Waveforms Figure 3–19: Display Menu — Style NOTE. TDS 500C and TDS 700C models only: See Using InstaVu Acquisition Mode, on page 3–55, to see how Style setup differs for InstaVu mode. Adjust Intensity Intensity lets you set text/graticule and waveform intensity (brightness) levels.
Page 102 — one for the main and one for the delayed time base. The trigger bar is a visual indicator of the trigger level. Trigger Point Indicator Trigger Bar—Long Style -or- Trigger Bar—Short Style Figure 3–20: Trigger Point and Level Indicators 3–41 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 103 NOTE. When the horizontal scale is set to the faster rates (10 ns/div for the TDS 600B; see Table 3–4 on page 3–35 for rates specific to the TDS 500C and TDS 700C models) or when using the ZOOM feature to expand waveforms horizontally, interpolation occurs.
Page 104: Table 3-5: Xy Format Pairs
Ch 3 and Ch 4 (Ax1 and Ax2) Ch 3 (Ax1) Ch 4 (Ax2) Ref 1 and Ref 2 Ref 1 Ref 2 Ref 3 and Ref 4 Ref 3 Ref 4 3–43 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 105: Customizing The Display Color
The Display menu allows you to adjust the style, intensity level, graticule, and format features. To find more information on display, see Change the Display Settings on page 3–39. 3–44 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 106 Temperature, Spectral, or Gray Scale from the resulting side menu. Choose View Palette to preview your selection on the display. Press Persistence Palette to quit preview mode. Press Clear Menu to return to the Palette menu. 3–45 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 107 6. Choose Saturation from the side menu and use the general purpose knob or keypad to select the saturation you desire. A value of 100 provides a pure color. A value of 0 provides gray. 3–46 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 108 To return to the factory defaults, select Reset to Factory Color. Set Reference Waveform To define reference waveform colors: Color 1. Press Map Reference in the main menu. (See Figure 3–23.) 3–47 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 109 2. Toggle Collision Contrast to ON in the side menu to mark collision zones with a special color. Restore Colors To restore colors to their factory default settings: 1. Press the main menu Restore Colors item. (See Figure 3–24.) 3–48 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 110: Zooming On Waveforms
(Zoom is also handy if you have acquired a waveform at the fastest time per division and want to further expand the waveform horizontally.) 3–49 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 111 The Zoom readout appears at the top of the display when zoom is on. (See Figure 3–25 on page 3–52.) Dual-window (preview) mode does not display the Zoom readout. 3–50 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 112: Side Menu
Horizontal Lock affects which waveforms the horizontal control positions whether Zoom is on or off. The rules for the three settings are listed in step 4 on page 3–51. 3–51 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 113 (also called zoom preview mode), do the following steps: 1. Press Zoom Mode (main) Preview (side). Note that the oscilloscope displays the box-enclosed area on the waveform as magnified in the top graticule. (See Figure 3–26.) 3–52 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 114 (volts/divi- sion and time/division) for the zoomed waveform. Zoomed (Magnified) Waveforms Nonzoomed Waveforms, with Box Indicators at Corners Denoting the Selected Graticule Figure 3–26: Dual Window (Preview) Mode 3–53 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 115 You can also adjust the waveform relative to the zoom boxes by selecting the lower graticule and adjusting the vertical and horizontal control knobs. See Using Dual Window Mode on page 3–52. 3–54 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 116: Using Instavu Acquisition Mode
Figure 3–27: Dual Zoom — Shown Dual Window (Preview) Mode Using InstaVu Acquisition Mode The TDS 500C and 700C Oscilloscopes can use InstaVu acquisition mode to reduce the dead time between waveform updates that normally occur when digitizing storage oscilloscopes (DSOs) acquire waveforms. InstaVu mode can capture and display transient deviations, such as glitches or runt pulses, often missed during longer dead times that accompany normal DSO display.
Page 117 Mode (main). Push Mode again to toggle to InstaVu mode. (See Figure 3–28.) To turn InstaVu off, press InstaVu. Alternatively, press DISPLAY Mode (main), and then press Mode again to toggle to Normal mode. Figure 3–28: InstaVu Display 3–56 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 118 Memory Memory Bit Map Bit Map Bit Map Variable Persistence Updated Variable Updated Variable Display Persistence Display Persistence Display Figure 3–29: Normal DSO Acquisition and Display Mode Versus InstaVu Mode 3–57 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 119 Vectors when in equivalent time mode (waveforms are displayed as Dots instead). (To determine under what conditions the oscilloscope normally interpolates or uses equivalent time, see Selecting Repetitive Sampling on page 3–34.) 3–58 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 120: Using Fastframe
Turn off InstaVu to display the intensified zone. Using FastFrame You can define and enable FastFrame (TDS 500C and 700C models only). This feature lets you capture multiple acquisitions in the acquisition memory of a single channel. Figure 3–30 shows how FastFrame combines the desired captured records into one larger record.
Page 121 3. Press Horiz Pos (main), then Frame (side), and use the general purpose knob to enter the number of a specific frame to view. After you press Enter, that frame should appear on the display. 3–60 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 122 You can also see the current sequence by pressing the RUN/STOP button to stop the acquisition. 3–61 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 123 Acquiring and Displaying Waveforms 3–62 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 124: Triggering On Waveforms
To pulse trigger based on various pulse types (glitch, runt) or their parame- ters (width, slew rate) see Triggering on Pulses on page 3–89. To trigger on communication signals (optional on TDS 500C and 700C only) see Communications Triggering on page 3–103.
Page 125 For example, you might want to trigger with an external clock or with a signal from another part of the circuit. To use the auxiliary trigger, connect the external triggering signal to the Auxiliary Trigger input connector on the oscilloscope rear panel. 3–64 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 126 Normal trigger mode enables the oscilloscope to acquire a waveform only when it is triggered. If no trigger occurs, the oscilloscope will not acquire a waveform. (You can push FORCE TRIGGER to force the oscilloscope to make a single acquisition.) 3–65 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 127 You can also set a default holdoff. The default hold is the “general purpose” holdoff for most triggering signals and varies with the horizontal scale. It is equal to 5 divisions times the current time/division settings. 3–66 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 128 By analyzing what happened before the glitch, you may uncover clues about its source. 3–67 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 129: Triggering From The Front Panel
To manually change the trigger level when edge triggering (or certain threshold levels when logic or pulse triggering), turn the MAIN LEVEL knob. It adjusts the trigger level (or threshold level) instantaneously no matter what menu, if any, is displayed. 3–68 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 130 The oscilloscope recognizes and acts upon FORCE TRIG even when you press it before the end of pretrigger holdoff. However, the button has no effect if the acquisition system is stopped. 3–69 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 131 When ARM, TRIG’D, and READY are all off, the digitizer is stopped. When ARM, TRIG’D, and READY are all lighted (TDS 500C and TDS 700C models only), FastFrame or InstaVu modes are in effect. No trigger status monitoring is taking place.
Page 132 Trigger Status Screen. To see a more comprehensive status listing of the settings for the main and delayed trigger systems, press SHIFT STATUS STA- TUS (main) Trigger (side). 3–71 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 133: Triggering On A Waveform Edge
To quickly check if edge triggers are selected, check the Trigger readout. When Trigger Status edge triggers are selected, the trigger readout displays the trigger source, as well as the trigger slope and level. (See Figure 3–38.) 3–72 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 134 To bring up the Edge Trigger menu, press TRIGGER MENU Type (main) Edge (pop-up). (See Figure 3–39.) Figure 3–39: Main Trigger Menu — Edge Type 3–73 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 135 DC coupling to couple an auxiliary signal to the trigger circuits. Although trigger coupling can be set to other than DC when in DC Aux, the oscilloscope ignores the setting until one of Ch1 through Ch4 is selected. 3–74 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 136 You can set holdoff from 250 ns (minimum holdoff available) to 12 seconds (maximum available). See Holdoff, Variable, Main Trigger in the TDS 500C, TDS 600B, & TDS 700C Oscilloscopes Performance Verification and Specifica- tions manual for typical minimum and maximum values.
Page 137: Triggering Based On Logic
TRUE (or at your option FALSE). When you use a pattern trigger, you define: The precondition for each logic input — logic high, low, or do not care (the logic inputs are channels 1, 2, 3, and 4) 3–76 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 138 Table 3–6 are met. (Goes TRUE or Goes FALSE must be set in the Trigger When menu. The other settings in that menu are described in To Define a Time Qualified Pattern Trigger on page 3–83.) 3–77 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 139: Table 3-6: Pattern And State Logic
Data that changes state within this zone triggers the oscilloscope. Figure 3–40 shows how the setup and hold times you choose positions this zone relative to the clock. 3–78 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 140 To quickly check if logic triggers are selected and if so, what class, check the Trigger Status Trigger readout. When logic triggers are selected, the trigger readout displays the selected logic trigger class: Pattern, State, or StlHld (Setup/Hold). (See Figure 3–41.) 3–79 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 141 Zone –T Clock Level Clock Signal Setup/Hold Violation Zone –T Clock Level Clock Signal Positive T ; Negative T Negative T Positive T Figure 3–40: Violation Zones for Setup/Hold Triggering 3–80 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 142 (Pages 3–76 through 3–78 describe how pattern triggers work.) To use pattern triggering, do the procedures that follow: Select Pattern Triggering. Press TRIGGER MENU Type (main) Logic (pop-up) Class (main) Pattern (pop-up). 3–81 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 143 Class (main) Pattern (pop-up) Set Thresholds (main) Ch1, Ch2, Ch3, or Ch4 (side). 2. Use the MAIN TRIGGER LEVEL knob, the general purpose knob, or the keypad to set each threshold. 3–82 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 144 (TRUE) for less than the time you specify. Conversely, the TRUE for more than menu item requires the boolean function to be TRUE for longer than the time you specify. 3–83 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 145 Time Logic Function is TRUE Logic Function (AND) Becomes TRUE Logic Function Becomes FALSE and Triggers Acquisition Time Logic Function Must be TRUE Figure 3–43: Logic Trigger Menu — Time Qualified TRUE 3–84 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 146 TRUE) or when the logic condition is not met (Goes FALSE): Press TRIGGER MENU Type (main) Logic (pop-up) Class (main) State (pop-up) Trigger When (main) Goes TRUE or Goes FALSE (side). 3–85 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 147 2. Press any one of Ch1, Ch2, Ch3, or Ch4 (side). Do not select the same channel that you selected for the clock source. 3. Press Clock Edge (side) to toggle between the rising and falling edges. 3–86 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 148 Setup time always leads the hold time by at least 2 ns 2 ns). Attempting to set either time to reduce the 2 ns limit adjusts the other time to maintain the limit. 3–87 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 149 To set mode and holdoff, refer to To Set Mode & Holdoff on page 3–75. To learn more about trigger mode and holdoff, see the descriptions Trigger Modes and Trigger Holdoff on page 3–65. 3–88 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 150: Triggering On Pulses
A timeout trigger occurs when the trigger source does not detect a pulse edge when it expected to. Figure 3–45 shows the pulse trigger readout. Table 3–7, on page 3–90, describes the choices for pulse triggers. 3–89 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 151: Table 3-7: Pulse Trigger Definitions
Width negative Triggering occurs if the oscilloscope finds a negative pulse with a width between, or optionally outside, the user-speci- fied lower and upper time limits. 3–90 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 152 (or wider) in width than some specified time. To set up for glitch triggering, do the following procedures. Select Glitch Triggering. Press TRIGGER MENU Type (main) Pulse (pop-up) Class (main) Glitch (pop-up). 3–91 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 153 Positive looks at positive-going pulses. Negative looks at negative-going pulses. Either looks at both positive and negative pulses. 2. Press Width (side), and set the glitch width using the general purpose knob or keypad. 3–92 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 154 To set up for runt triggering, do the following procedures. Select Runt Triggering. Press TRIGGER MENU Type (main) Pulse (pop-up) Class (main) Runt (pop-up). (See Figure 3–47.) 3–93 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 155 Hint: To use the Trigger Bar feature to set the threshold levels on the pulse train, press DISPLAY Readout Options (main) Trigger Bar Style (side) until Long appears in that menu item. 3–94 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 156 For all three polarity settings, triggering occurs at the point the runt pulse recrosses its first threshold. 3–95 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 157 2. Press Within Limits (side) if you want the oscilloscope to trigger on pulses that fall within the specified range. If you want it to trigger on pulses that are outside the range, then press Out of Limits (side). 3–96 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 158 Positive, Negative, or Either (side). Positive monitors the slew rate of the positive-going edges of pulses. The edge must first cross the lower threshold and then cross the upper threshold. 3–97 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 159 Time setting this side menu and as you vary either of the threshold settings from the Thresholds menu. You adjust those parameters to adjust slew rate; you can’t adjust slew rate directly. 3–98 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 160 Ch 1. It is set to monitor the positive-polarity pulse edges of the trigger source and to trigger on any edge with a slew rate faster than the slew rate setting. 3–99 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 161 The pair cursors, which are aligned to threshold levels, read out a delta voltage of approximately 4 V and a delta time of 200 ns between the threshold levels. Therefore, the slew rate of the pulse edge triggered on is: 3–100 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 162 Stays Low causes a trigger to occur if the signal stays lower than the trigger level for longer than the timeout value. 3–101 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 163 To set mode and holdoff, refer to Set Mode & Holdoff on page 3–75. To learn more about trigger mode and holdoff, see Trigger Modes and Trigger Holdoff on page 3–65. 3–102 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 164: Table 3-8: Comm Triggers
2.048 Mb/s 8.44 Mb/s 34.368 Mb/s 139.26 Mb/s E5 (CEPT) 565 Mb/s STM1E 155.52 Mb/s 1.544 Mb/s DS1A 2.048 Mb/s DS1C 3.152 Mb/s 6.312 Mb/s 44.736 Mb/s DS4NA 139.26 Mb/s 3–103 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 165 You can set mode and holdoff for all standard trigger types and classes. To set mode and holdoff, refer to Set Mode & Holdoff on page 3–75. To learn more about trigger mode and holdoff, see Trigger Modes and Trigger Holdoff on page 3–65. 3–104 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 166 Pulse Form (main). 2. Select an Pulse Form from the side menu. Only pulse forms for the selected Code are displayed. See Table 3–9 for a list of pulse forms. 3–105 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 167: Table 3-9: Communications Pulse Forms
You can only use delay with respect to the main edge trigger and certain classes of main pulse triggers. This section describes how to delay the acquisition of waveforms. 3–106 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 168 Refer to Figure 3–52 for a more detailed look at how delayed records are placed in time relative to the main trigger. 3–107 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 169 The end of the zone corresponds to the end of the delayed record. NOTE. The intensified zone is not visible when in InstaVu mode (TDS 500C and TDS 700C models only); see Incompatible Modes on page 3–58.
Page 170 Main Trigger Point Main Trigger Source Delayed Trigger Source Time Delay Start Posttrigger Acquisition Waiting for nth Event (From Delay Trig Menu) (Where n=4) Figure 3–52: How the Delayed Triggers Work 3–109 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 171 You will still need to display the Horizontal menu if you want to leave Delayed Triggerable. The Source menu lets you select which input will be the delayed trigger source. 3–110 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 172 When using Delayed Triggerable mode to acquire waveforms, two trigger bars are displayed. One trigger bar indicates the level set by the main trigger system; the other indicates the level set by the delayed trigger system. 3–111 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 173 At 100 mV (the next smaller setting after 200 mV) the trigger range is 1.2 V which is smaller than the typical TTL (+1.4 V) or ECL (–1.3 V) level. 3–112 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 174: Measuring Waveforms
Cursor Automated Readouts Measurements Histogram Graticule 64.0 mV Ch 1 @: 32.0 mV Frequency 100 MHz Ch 1 Period 10 ns Cursors Figure 3–54: Histogram, Graticule, Cursor and Automated Measurements 3–113 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 175: Table 3-10: Measurement Definitions
Timing measurement. The duration of a burst. Measured over the entire waveform or gated region. Cycle Mean Voltage measurement. The arithmetic mean over the first cycle in the waveform or the first cycle in the gated region. 3–114 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 176 MidRef (default 50%) amplitude points of a negative pulse. Peak to Peak Voltage measurement. The absolute difference between the maximum and minimum amplitude in the entire waveform or gated region. 3–115 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 177 Measurement 1 is the top readout. Measurement 2 is below it, and so forth. Once a measurement readout is displayed in the screen area, it stays in its position even when you remove any measurement readouts above it. 3–116 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 178 Be careful when taking automatic measurements on noisy signals. You might measure the frequency of the noise and not the desired waveform. Your oscilloscope helps identify such situations by displaying a low signal amplitude or low resolution warning message. 3–117 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 179 All Measurements (side). Gate Measurements The gating feature lets you limit measurements to a specified portion of the waveform. When gating is Off, the oscilloscope makes measurements over the entire waveform record. 3–118 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 180 Displaying the cursor menu and turning V Bar cursors off will not turn gating off. (Gating arrows remain on screen to indicate the area over which the measurement is gated.) You must turn gating off in the Gating side menu. 3–119 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 181 To set the reference levels, do the following steps: 1. TDS 600B: Press MEASURE Reference Levels (main) Set Levels (side). 2. TDS 500C and TDS 700C: Press MEASURE Measure (pop-up) Level Setup (main) Set Levels (side). 3–120 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 182 Low Ref — Sets the low reference level. The default is 10%. Mid2 Ref — Sets the middle reference level used on the second waveform specified in the Delay or Phase Measurements. The default is 50%. 3–121 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 183 Figure 3–59: Measure Delay Menu — Delay To The steps just performed select the waveform you want to measure to; note that the waveform you are measuring delay from is the selected waveform. (See Figure 3–59.) 3–122 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 184 80% of the graticule area when displayed. (See Figure 3–60.) You can display a snapshot on any channel or ref memory, but only one snapshot can be displayed at a time. 3–123 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 185 3. Press either SNAPSHOT (main) or AGAIN (side) to take another snapshot. NOTE. The Snapshot display tells you the channel that the snapshot is being made on. 4. Push Remove Measrmnt. Snapshot Display Figure 3–60: Snapshot Menu and Readout 3–124 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 186 TDS 700C Only) deviation or the minimum and maximum values of measurements. The number of measurements accumulated is also displayed. NOTE. Statistics are not displayed for Phase, Delay, and histogram measurements. 3–125 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 187: Taking Cursor Measurements
You move one cursor independently or both cursors in tandem, depending on the cursor mode. As you position the cursors, readouts on the display report and update measurement information. 3–126 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 188 In independent mode, you move only one cursor at a time using the general purpose knob. The active, or selected, cursor is a solid line. Press SELECT to change which cursor is selected. 3–127 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 189 With the video trigger option, you can also display the line number. TDS 500C and TDS 700C Models Only: In FastFrame mode, the @ shows the time position of the selected cursor relative to the trigger point of the frame that the selected cursor is in.
Page 190 The value after @ shows the voltage at the X of the selected cursor relative to ground. (See Figure 3–64.) TDS 500C and TDS 700C Models Only: In FastFrame mode, the shows the time difference between the two cursors only if both cursors are in the same frame.
Page 191 To adjust either cursor in independent mode, use the general purpose knob to move the selected (active) cursor. A solid line indicates the adjustable cursor and a dashed line the fixed cursor. Press Select to toggle selection between the two cursors. 3–130 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 192 To find instructions on using cursor with FFT waveforms, differentiated waveforms, and integrated waveforms, see Fast Fourier Transforms on page 3–191, Waveform Differentiation on page 3–210, and Waveform Integration on page 3–215. 3–131 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 193: Taking Graticule Measurements
143 mV/div (152 mV/div for PAL) where the divisions are those of the conventional graticule, not the divisions of the video graticules. For NTSC, the actual grid lines represent 10 IRE, and for PAL the lines are 100 mV apart. 3–132 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 194: Displaying Histograms
Figure 3–65: Histogram Menu and Vertical Histogram Start Histogram Counting To start histogram counting press MEASURE Histogram (pop-up) Histogram Options (main) Histogram Mode (side) Off, Vertical, or Horizontal (side). Off turns off histogram counting and display. 3–133 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 195 Histogram Box Limits (main) Top Limit, Bottom Limit, Left Limit, or Right Limit (side). Use the general purpose knob or keypad to adjust the selected edge of the histogram box. 3–134 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 196 MEASURE to bring up the Measure menu. (See Figure 3–56.) 1. Turn on histogram counting by pressing MEASURE Histogram (pop-up) Histogram Options (main) Histogram Mode (side) Vertical or Horizontal (side). 3–135 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 197: Mask Testing (Option 2C Only)
Mask Source (side) to Ch1, Ch2, Ch3, or Ch4. To turn defined masks on or off, press MEASURE Measure (main) Masks (pop-up) Mask Options (main). Then toggle Mask Display (side) ON or OFF. 3–136 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 198 To control whether a standard-mask autoset can adjust Vertical Offset to match the waveform to the mask, press MEASURE Measure (main) Masks (pop-up) Mask Options (main). Then toggle Std Mask Offset Adj (side) to ON or OFF. 3–137 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 199 2. To select a mask to edit or create, press MEASURE Measure (main) Masks (pop-up) Mask Type (main) Edit (pop-up) User Mask Editing (main). Then select the mask from the side menu. 3–138 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 200 Figure 3–67: Locate one point along the left edge or right edge of the mask further left or further right than any other point. Points are connected left to right. 3–139 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 201 Masks are saved with setups, so you can save sets of masks by defining them, and then storing the instrument setup. Displayed masks are overwrit- ten when you recall a stored setup, select a standard mask, or initialize the digitizing oscilloscope. 3–140 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 202: Table 3-12: Standard Masks
Probe Cal lets you compensate the entire signal path, from probe tip to digitized signal, to improve the gain and offset accuracy of the probe. This section tells you how to use both features. 3–141 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 203 Pass or Fail in the main menu. 5. Verify the word Pass appears under Signal Path in the main menu. (See Figure 3–68.) 3–142 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 204 By executing Probe Cal on a channel with its probe installed, you can optimize the oscillo- scope capability to make accurate measurements using that channel and probe. 3–143 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 205 (Or see To Compensate Passive Probes on page 3–6.) Then continue with step 3 of this procedure. 1. Install the probe on the input channel on which it is to be used. 3–144 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 206 5. Press the front-panel button corresponding to the input channel on which you installed the probe. 6. TDS 600B: Press VERTICAL MENU Cal Probe (main). 7. TDS 500C and TDS 700C: Press VERTICAL MENU Probe Func- tions (main) Cal Probe (side).
Page 207 System (main) Diag/Err (pop-up) Error Log (main). If there are too many error messages to be seen on screen, rotate the general purpose knob clockwise to scroll to the last message. 3–146 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 208 Probe Cal data is erased using the Re-use Probe Calibration Data menu (discussed later), the oscilloscope displays Initialized status in its vertical menu. It also displays initialized whenever you remove a probe from an input. 3–147 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 209 Press OK Erase Probe Cal Data (side) to erase the Probe Cal data last stored and use the probe uncompensated. Press CLEAR MENU on the front panel to retain the Probe Cal data last stored and use the probe uncompensated. 3–148 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 210 Table 3–13 shows the action the oscilloscope takes based on the probe connected and user operation performed. 3–149 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 211: Table 3-13: Probe Cal Status
Some optical probes and most active probes (such as the P6205) have TEKPROBE interfaces. 3–150 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 212: Saving Waveforms And
Save setups are retained even when you turn the oscilloscope off or unplug it. 3–151 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 213 3. To store a setup to disk, press To File (side). Then use the general purpose knob to select the exact file from the resulting scrollbar list. Finally, press Save To Selected File (side) to complete the operation. 3–152 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 214 To use Tek Secure to remove all reference setups and waveforms (does not affect mass storage disks): Press SHIFT UTILITY System (main) Config (pop-up) Tek Secure Erase Memory (main) OK Erase Setup & Ref Memory (side). 3–153 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 215: Saving And Recalling Waveforms And Acquisitions
If you have more waveforms than you can display, you can save one of the waveforms and then stop acquiring it. By doing so, you free an input channel to display another waveform without losing the first one. 3–154 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 216 WAVEFORM Save Wfm (main) To Ref1, To Ref2, To Ref3, or To Ref4 (side). 3. TDS 500C and TDS 700C: To store a waveform internally, press SAVE/RE- CALL WAVEFORM Normal (pop-up) Save Wfm (main) Ref1, To Ref2, To Ref3, or To Ref4 (side).
Page 217 For instance, the oscilloscope saves the first acquisition you save in the file TEK00001.WF1, the second in TEK00002.WF1, and so on. Saving or recalling an acquisition stops acquisitions in process. 3–156 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 218 Delete Ref1, Delete Ref2, Delete Ref3, Delete Ref4, or Delete All Refs (side). TDS 500C and TDS 700C: Press SAVE/RECALL WAVEFORM Normal (pop-up) Delete Refs (main) Delete Ref1, Delete Ref2, Delete Ref3, Delete Ref4, or Delete All Refs (side). 3–157 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 219 To Recall a Waveform To recall a waveform from disk to an internal reference memory: From Disk TDS 600B: Press SAVE/RECALL WAVEFORM Recall Wfm To Ref (main) Recall From File (side). 3–158 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 220 To rearm the oscilloscope for taking a new autosave single acquisition sequence, press RUN/STOP. To avoid loss of reference waveforms, you can save them to disk (use the SAVE/RECALL WAVEFORM menu), before rearming the oscilloscope. 3–159 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 221: Managing The File System
Save/Recall Waveform menu, or press the SHIFT HARD- COPY button to bring up the Hardcopy menu. 2. TDS 500C and TDS700C: Press the SAVE/RECALL SETUP button to bring up the Save/Recall Setup menu, or press SAVE/RECALL WAVE-...
Page 222 1 Mbyte or more). To convert the amount to bytes, you simply multiply the Kbytes amount times 1024. Thus, the 690 Kbytes shown in Figure 3–74 = 690 Kbytes x 1024 bytes/Kbyte = 706,560 bytes. Figure 3–74: File Utilities 3–161 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 223 Press Enter Char from the main menu to enter each letter. When you have entered the name, press the side menu OK Accept item. Figure 3–75: File System — Labeling Menu 3–162 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 224 When the confirm delete option is OFF, the oscilloscope can immediately delete files or directories. When the confirm option is ON, the oscilloscope warns you before it deletes files and gives you a chance to reconsider 3–163 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 225: Printing A Hardcopy
This subsection describes how to do these tasks and how to save a hardcopy to a disk. 3–164 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 226 Depending on the output format selected, the oscilloscope creates either an image or a plot. Images are direct bit map representations of the oscilloscope display. Plots are vector (plotted) representations of the display. 3–165 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 227 EPS Mono and Color formats are compatible with Tektronix Phaser Color Printers, HPGL is compatible with the Tektronix HC100 Plotter, and Epson is compatible with the Tektronix HC200 Printer. To Set Up for Making...
Page 228 The choices are GPIB, RS–232, Centronics, and File. The menu item File chooses the disk drive as the destination for hardcopies. See To Save to a Disk on page 3–171. 3–167 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 229 4. Once the oscilloscope is connected to a hardcopy device, press HARDCOPY to print your date/time stamped hardcopy. Date and Time Display Figure 3–78: Date and Time Display 3–168 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 230 (See Figure 3–79.) Hardcopy Device Digitizing Oscilloscope GPIB, RS-232, or Centronics Cable Figure 3–79: Connecting the Oscilloscope Directly to the Hardcopy Device 3–169 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 231 Saving Waveforms and Setups Some devices, such as the Tektronix HC100 Plotter, use the GPIB interface. Many printers, such as the Tektronix HC200, use Centronics interfaces. Many hardcopy devices, including the HC100 and HC200 with option 03, provide RS-232 support. (Check the documentation for your hardcopy device.) Print.
Page 232 Or you might load stored hardcopies from disk into your desktop publishing software that runs on a PC-compatible computer. 3–171 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 233 RS-232 Cable GPIB Cable Figure 3–80: Print. If your controller is PC-compatible and it uses the Tektronix GURU S3FG210 (National Instruments GPIB-PCII/IIA) GPIB package, do the following steps to print a hardcopy: 1. Use the MS-DOS cd command to move to the directory that holds the software that came with your GPIB board.
Page 234 “copy screen1 lpt1: /B”. Your hardcopy device should now print a picture of the oscilloscope screen. NOTE. If you transmit hardcopy files across a computer network, use a binary (8-bit) data path. 3–173 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 235: Communicating With Remote Instruments
Status and event reporting To simplify the development of GPIB systems, include instruments that use Tektronix defined codes and formats for messages that travel over the GPIB. Each device that follows these codes and formats, such as this oscilloscope, supports standard commands. Use of instruments that support these commands can greatly simplify development of GPIB systems.
Page 236 Obtain the Proper Interconnect Cabling. To connect the oscilloscope to a GPIB network, obtain at least one GPIB cable. Connecting two GPIB devices requires an IEEE Std 488.1-1987 GPIB cable (available from Tektronix, part number 012-0991-00). The standard GPIB cable connects to a 24-pin GPIB connector located on the rear panel of the oscilloscope.
Page 237 Digitizing Oscilloscope (Rear Panel) GPIB Connector Figure 3–83: Connecting the Oscilloscope to a Controller Select GPIB Port. To select the GPIB port, press SHIFT UTILITY System (main) I/O (pop-up) Port (main) GPIB (pop-up). 3–176 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 238 Off Bus disconnects the oscilloscope from the bus. GPIB Configuration Menu Figure 3–84: Utility Menu 3–177 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 239 Saving Waveforms and Setups To Find More Information See Printing a Hardcopy, on page 3–164. See the TDS Programmer Manual disk. 3–178 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 240 Trigger displays parameter information about the triggers. Waveforms displays information about waveforms, including live, math, and reference waveforms. I/O displays information about the I/O port(s). Histo/Masks displays information about histograms and masks. 3–179 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 241 Determining Status and Accessing Help Firmware Version Figure 3–85: Status Menu — System 3–180 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 242 Figure 3–86: Banner Display Displaying Help To use the on-line help system: Press HELP to provide on-screen information on any front panel button, knob or menu item. (See Figure 3–87.) 3–181 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 243 HELP button was first pressed. If you are in help mode and want to see help on selections from menus not displayed, you first exit help mode, display the menu you want information on, and press HELP again to re-enter help mode. 3–182 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 244 Specify the channel to compare to the template. Specify the action to take if incoming waveform data exceeds the set limits. Turn limit testing on so that the parameters you have specified will take effect. 3–183 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 245 Average acquisition mode. If you are unsure how to select Average, see Selecting an Acquisition Mode on page 3–33. 3. Once you have selected a source, select a destination for the template: press Template Destination (side) Ref1, Ref2, Ref3, or Ref4. 3–184 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 246 To avoid overwriting the template you have just created, store any new template you create in a different destination from that just stored. 3–185 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 247 Now specify the action to take if waveform data exceeds the limits set by the Response limit test template and turn on limit testing: 1. Press SHIFT ACQUIRE MENU Limit Test Setup (main) to bring up a side menu of possible actions. 3–186 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 248 The waveform will be repositioned horizontally to move the first sample in the waveform record that is outside of template limits to center screen. The position of the waveform template will track that of the waveform. 3–187 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 249 This section describes the invert, add, subtract, divide, and multiply waveform math features. See Fast Fourier Transforms on page 3–191, Waveform Differ- entiation on page 3–210, and Waveform Integration on page 3–215 for informa- tion on Advanced DSP Math features. 3–188 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 250 Waveform integration (intg) is described on page 3–215, and waveform differentiation (diff) is described on page 3–210. 4. To create the math waveform, press OK Create Math Wfm (side). 3–189 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 251 VV, rather than in volts, V. Figure 3–91: Dual Waveform Math Main and Side Menus 5. Press OK Create Math Wfm (side) to perform the function. 3–190 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 252 Measuring harmonic content and distortion in systems Characterizing the frequency content of DC power supplies Analyzing vibration Analyzing harmonics in 50 and 60 cycle lines Identifying noise sources in digital logic circuits 3–191 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 253 DSP also allows the phase as well as the magnitude to be displayed. 3–192 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 254 5. If the selected math waveform is not FFT, press Change Math Definition (side) FFT (main). See Figure 3–93. 6. Press Set FFT Source to (side) repeatedly until the channel source selected in step 1 appears in the menu label. 3–193 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 255 Phase (rad) — Phase is displayed using radians as the scale, where radians wrap from – to + . The topic Considerations for Phase Displays, on page 3–204, provides in depth information on setup for phase displays. 3–194 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 256 The topic Adjust Phase Suppression, on page 3–205, provides additional information on phase suppression. 12. Press OK Create Math Wfm (side) to display the FFT of the waveform you input in step 1. (See Figure 3–94.) 3–195 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 257 (0 volts), or the zero phase level (0 degrees or 0 radians) from the @: readout. (The waveform reference indicator at the left side of the graticule indicates the level where phase is zero for phase FFTs.) 3–196 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 258 7. Press SELECT to select the alternate cursor. 8. Align the selected cursor to another point of interest on the math waveform. 3–197 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 259 FFT frequency domain record. This frequency domain record is derived from the FFT time domain record, which is derived from the waveform record. All three records are described below. 3–198 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 260 Waveform Record 10 K Zero Phase Reference FFT Time Domain Record = 10k Waveform Record > 10 K Zero Phase Reference Figure 3–96: Waveform Record vs. FFT Time Domain Record 3–199 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 261 20 Megasamples per second would yield an FFT with a range of 0 to 10 MHz. The sample rates available for acquiring data records vary over a range. TDS oscilloscopes display the sample rate in the acquisition readout at the top of the oscilloscope screen. 3–200 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 262 However, long record lengths lower the noise relative to the signal and increase the frequency resolution for the FFT. More important, they might be needed to capture the waveform feature you want to include in the FFT. 3–201 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 263 For TDS 500C and TDS 700C models only, after the FFT is set up and dis- played, you can to turn on Hi Res mode to reduce the effect of noise in the signal.
Page 264 These harmonics typically decrease in amplitude as their frequency increases. Sample the source signal at rates that are at least 2X that of the highest frequency component having significant amplitude. 3–203 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 265 The zero reference point is the point at the center of the FFT math waveform but corresponds to various points on the source (time domain) record. (See Figure 3–96 on page 3–199.) 3–204 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 266 −pi to pi. This noise could make the phase display unusable. In such a case, use phase suppression to control the noise. 3–205 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 267 Windowing Process. The oscilloscope multiplies the FFT time domain record by one of four FFT windows before it inputs the record to the FFT function. Figure 3–99 shows how the time domain record is processed. 3–206 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 268 FFT, better amplitude accuracy over frequency resolution, or to provide a compromise between both. You can choose from these four windows: Rectangular, Hamming, Hanning, and Blackman-Harris. 3–207 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 269 FFT using that window. Narrow lobes increase frequency resolution because they are more selective. Lower side lobe amplitudes increase accuracy because they reduce leakage. 3–208 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 270 Care should be taken when using bell shaped windows to be sure that the most interesting parts of the signal in the time domain record are positioned in the center region of the window so that the tapering does not cause severe errors. 3–209 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 271 You can store and display a derivative math waveform in a reference memory, then use it as a source for another derivative waveform. The result is the second derivative of the waveform that was first differentiated. 3–210 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 272 1. You should now have your derivative math waveform on screen. Use the Vertical SCALE and POSITION knobs to size and position your waveform as you require. 3–211 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 273 3–212 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 274 When using the vertical scale knob to scale the source waveform, note that it also scales your derivative waveform. 3–213 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 275 If you wish to see the zoom factor (2X, 5X, etc.), you need to turn zoom on: press ZOOM ON (side). The vertical and horizontal zoom factors appear on screen. 3–214 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 276 Since the resultant math waveform is an integral waveform, its vertical scale is in volt-seconds (its horizontal scale is in seconds). The source signal is integrated over its entire record length; therefore, the math waveform record length equals that of the source waveform. 3–215 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 277 You should now have your integral math waveform on screen. See Fig- ure 3–103. Use the Vertical SCALE and POSITION knobs to size and position your waveform as you require. 3–216 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 278 6. Read the integrated voltage over time between the cursors in volt-seconds from the : readout. Read the integrated voltage over time between the selected cursor and the reference indicator of the math waveform from the @: readout. (See Figure 3–104.) 3–217 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 279 11. Press Function (main) Paired (side). 12. Use the technique just outlined to place the long vertical bar of each paired cursor to the points along the horizontal axis you are interested in. 3–218 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 280 Even a few divisions of offset in the source waveform may be enough to ensure that the integral waveform saturates (clips), especially with long record lengths. 3–219 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 281 On (side). The vertical and horizontal zoom factors appear on screen. Whether Zoom is on or off, you can press Reset (main) Reset Live Factors or Reset All Factors (side) to return the zoomed integral waveform to no magnification. 3–220 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 282 Appendices...
Page 283 220 V, 50 Hz power cord Add a hard disk. Hard disk (Option applies to TDS 500C & TDS 700C only.) Video trigger Oscilloscope comes with tools for investigating events that occur when a video signal generates a horizontal or vertical sync pulse. These tools allow investigation of a range of NTSC, PAL, SECAM, and high definition TV signals.
Page 284 P6701B with system Oscilloscope comes with a P6701B and calibrated short-wavelength optical reference calibration receiver on channel 1. (Option applies to TDS 500C & TDS 700C only.) P6703B with system Oscilloscope comes with a P6703B and calibrated long-wavelength optical reference calibration receiver on channel 1.
Page 285: Table A-2: Standard Accessories
The oscilloscope comes standard with the accessories listed in Table A–2. Table A–2: Standard Accessories Accessory Part Number User Manual 070-9869-XX Reference 020-2204-XX Technical Reference: Performance Verification and Specifications 070-9874-XX A–3 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 286: Table A-1: Options
Accessory Pouch (TDS 500C, TDS 620B, TDS 680B) 016-1268-00 Soft-Sided Carrying Case 016-0909-01 Transit Case 016-1135-00 GPIB Cable (1 meter) 012-0991-01 GPIB Cable (2 meter) 012-0991-00 Centronics Cable 012-1214-00 RS-232 Cable 012-1298-00 A–4 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 287 P6217 Active, high speed digital voltage probe. FET. DC to 4 GHz. DC offset P6204 Active, high speed digital voltage probe. FET. DC to 1 GHz. DC offset P6563A Passive, SMD probe, 20X, 500 MHz A–5 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 288 CT-4 Current Transformer — for use with the AM 503S (A6302, A6312) and P6021. Peak pulse 2.0 kA. 0.5 Hz to 20 MHz with AM 503S (A6302) P5210 Differential, high voltage probe, 5.6 kV (DC + peak AC) 50 MHz A–6 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 289: Table A-4: Accessory Software
Service Assurance Tektronix offers the following services that you can purchase any time during the warranty period of this product: REPXXXX provides one year of post-warranty repair support. It is available in one year increments up to three years.
Page 290 Appendix A: Options and Accessories A–8 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 291 Min-max is sensitive to waveform ringing and spikes, however, and does not always measure accurately rise time, fall time, overshoot, and undershoot. The min-max method calculates the High and Low values as follows: B–1 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 292 Typically set to 90%. You can set it from 0% to 100% or to a voltage level. MidRef — the waveform middle reference level. Typically set to 50%. You can set it from 0% to 100% or to a voltage level. B–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 293 Hysteresis is useful when you are measuring noisy signals, because it allows the oscilloscope to ignore minor fluctuations in the signal. B–3 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 294 (or the gated region) of the same polarity as . This is MCross1Polarity — is the polarity of first crossing (no default). It can be rising or falling. B–4 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 295 Values range between 0.0 and 1.0 samples. This value is determined by the instrument when it receives a trigger. The actual zero reference (trigger) location in the measurement record is at B–5 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 296 Amplitude (voltage) measurement. The area over one waveform cycle. For data not cyclical, you might prefer to use the Area measurement. then return the (interpolated) value at For details of the integration algorithm, see page B–15. B–6 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 297 For details of the integration algorithm, see page B–15. Cycle RMS The true Root Mean Square voltage over one cycle. then Otherwise, For details of the integration algorithm, see page B–15. B–7 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 298 , find the first sample in the measurement zone greater than 2. From this sample, continue the search to find the first (negative) crossing of . The time of this crossing is . (Use linear interpolation if necessary.) B–8 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 299 1 Hz = 1 cycle per second. = 0 or is otherwise bad, return an error. = 1/ High 100% (highest) voltage reference value. (See High, Low on page B–1.) Using the min-max measurement technique: B–9 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 300 Amplitude (voltage) measurement. The minimum amplitude. Typically the most negative peak voltage. Examine all samples from Start to End inclusive, and set Min equal to the smallest magnitude Waveform[ ] value found. B–10 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 301 = ‘–’ then – else – Optical Power See Mean dBm on page B–10. Peak to Peak Amplitude measurement. The absolute difference between the maximum and minimum amplitude. – B–11 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 302 4. The phase is determined by the following: If the target waveform leads the reference waveform, phase is positive; if it lags, negative. Phase is not available in the Snapshot display. B–12 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 303 2. From this sample, continue the search to find the first (positive) crossing of . The time of this crossing is the low rise time or . (Use linear interpolation if necessary.) B–13 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 304 LowRef Figure B–3: Rise Time RMS: Amplitude (voltage) measurement. The true Root Mean Square voltage. then = the (interpolated) value at Otherwise, For details of the integration algorithm, see below. B–14 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 305 A and B are numbers between 0.0 and –1.0 If A and B are integers, then: ( W(i) ) ( W(i 1) ) W(i) where s is the sample interval. B–15 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 306 MidRef, so use minima. Both min and max samples are below MidRef, so use maxima. MidRef Figure B–4: Choosing Minima or Maxima to Use for Envelope Measurements B–16 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 307 NOT available. However, if you question the validity of any measurement in the snapshot display, you can select and display the measurement individually and then check for a warning message. B–17 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 308 Appendix B: Algorithms B–18 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 309 170 kg (375 pound) test strength. 2. If you are shipping the oscilloscope to a Tektronix field office for repair, attach a tag to the oscilloscope showing the instrument owner and address, the name of the person to contact about the instrument, the instrument type, and the serial number.
Page 310 Appendix C: Packaging for Shipment C–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 311 Appendix D: Probe Selection The TDS Oscilloscope can use a variety of Tektronix probes for taking different kinds of measurements. To help you decide what type of probe you need, this section introduces the five major types of probes: passive, active, current, optical, and time-to-voltage probes.
Page 312 1 kV to 20 kV (DC + peak AC), the probe head design is mechanically much larger than for a passive probe. High voltage probes have the added advantage of lower input capacitance (typically 2-3 pF). D–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 313 The procedure To Change Vertical Scale and Position on page 3–15 explains how to change the input impedance. Also, please read Input Impedance Considerations on page 3–7 for more information. D–3 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 314 Current Probes Current probes enable you to directly observe and measure current waveforms, which can be very different from voltage signals. Tektronix current probes are unique in that they can measure from DC to 1 GHz. Two types of current probes are available: one that measures AC current only and AC/DC probes that utilize the Hall effect to accurately measure the AC and DC components of a signal.
Page 315 Optical probes let you blend the functions of an optical power meter with the high-speed analog waveform analysis capability of an oscilloscope. You have the capability of acquiring, displaying, and analyzing optical and electrical signals simultaneously. D–5 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 316 50 . If you then connect a high input impedance passive probe, you need to set the input impedance back to 1 M The procedure To Change Vertical Parame- ters, on page 3–17, explains how to change the input impedance. D–6 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 317 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. E–1 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 318: Table E-1: External Inspection Check List
CAUTION. To prevent getting moisture inside the oscilloscope during external cleaning, use only enough liquid to dampen the cloth or applicator. Lubrication. There is no periodic lubrication required for this oscilloscope. E–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 319 If you have not created a program group or a Windows 95 shortcut, use the File Manager (Windows 3.1) or Explorer (Windows 95) to select and run the tds–pgm.hlp program. F–1 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 320 Appendix F: Programmer Disk F–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 321 Glossary...
Page 322 The waveform displayed on the oscilloscope may have a lower frequency than the actual input signal. Amplitude The High waveform value less the Low waveform value. Glossary–1 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 323 3 dB ( .707) attenuation of the original (reference) signal. Burst width A timing measurement of the duration of a burst. Channel One type of input used for signal acquisition. The oscilloscope has four channels. Glossary–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 324 Available for both the trigger system and the vertical system. Delay measurement A measurement of the time between the middle reference crossings of two different waveforms. Delay time The time between the trigger event and the acquisition of data. Glossary–3 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 325 Equivalent-time sampling (ET) TDS 500C and TDS 700C Models Only: A sampling mode in which the oscilloscope acquires signals over many repetitions of the event. These oscilloscopes use a type of equivalent-time sampling called random equivalent-time sampling, which uses an internal clock that runs asynchro- nously with respect to the input signal and the signal trigger.
Page 326 An electronic copy of the display in a format useable by a printer or plotter. Hi Res acquisition mode TDS 500C and TDS 700C Models Only: An acquisition mode in which the oscilloscope averages all samples taken during an acquisition interval to create a record point.
Page 327 This very fast capture rate greatly increases the probability that runts, glitches, and other short term changes will accumulate in waveform memory. The oscilloscope then displays the waveform at the normal display rate using variable or infinite persistence. Glossary–6 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 328 Bezel buttons under the main menu display. They allow you to select items in the main menu. Maximum Amplitude (voltage) measurement of the maximum amplitude. Typically the most positive peak voltage. Glossary–7 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 329 A logic (Boolean) function in which the output is true if any of the inputs are true. Otherwise the output is false. On the oscilloscope, that is a trigger logic pattern and state function. Glossary–8 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 330 Positive duty cycle A timing measurement of the ratio of the positive pulse width to the signal period, expressed as a percentage. Positive overshoot Amplitude (voltage) measurement. High PositiveOvershoot 100% Amplitude Glossary–9 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 331 Memory in a oscilloscope used to store waveforms or settings. You can use that waveform data later for processing. The oscilloscope saves the data even when the oscilloscope is turned off or unplugged. Glossary–10 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 332 The waveform on which all measurements are performed, and which is affected by vertical position and scale adjustments. The light over one of the channel selector buttons indicates the current selected waveform. Glossary–11 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 333 An event that marks time zero in the waveform record. It results in acquisi- tion and display of the waveform. Trigger level The vertical level the trigger signal must cross to generate a trigger (on edge trigger mode). Glossary–12 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 334 YT format The conventional oscilloscope display format. It shows the voltage of a waveform record (on the vertical axis) as it varies over time (on the horizontal axis). Glossary–13 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 335 Glossary Glossary–14 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 336 Index...
Page 337 Ring Bell if Condition Met, 3–187 AUTOSET button, 2–15 RUN/STOP, 3–36 AUX TRIGGER INPUT, BNC, 2–5 Sample, 3–33 Auxiliary trigger, 3–64 Single Acquisition Sequence, 3–36 Average, Incompatible with InstaVu, 3–58 Stop After, 3–35, 3–187 Index–1 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 338 Clock Source, Main Trigger menu, 3–86 VERTICAL MENU, 2–19 CMI, Telecom Trigger menu, 3–104 WAVEFORM OFF, 2–21, 3–13, 3–43 Code, Telecom Trigger menu, 3–104 ZOOM, 3–49, 3–51 Collision Contrast, Color menu, 3–48 Index–2 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 339 DELAYED TRIGGER OUTPUT, 2–5 with integral waveforms, 3–217 GPIB, 2–5, 3–175 Cycle area, 3–114, Glossary–3 MAIN TRIGGER OUTPUT, 2–5 Cycle mean, 3–114, Glossary–3 Power, 2–5 Cycle RMS, 3–115, Glossary–3 RS-232, 2–5 Index–3 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 340 Trigger Bar, 3–41 Delta Time, Main Trigger menu, 3–98 Derivative math waveform, 3–211 Variable Persistence, 3–39 applications, 3–210 Vectors, 3–39 Waveform, 3–40 derivation of, 3–211 procedure for displaying, 3–211 XY, 3–43 Index–4 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 341 Falling edge, Delayed Trigger menu, 3–111 Format, File Utilities menu, 3–164 Falling edge, Main Trigger menu, 3–76, 3–85, 3–86 Format, Hardcopy menu, 3–167 Fast Fourier Transforms, description, 3–191 Frame Count, Horizontal menu, 3–60 Index–5 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 342 Histogram counting, 3–133 How to print (no controller), 3–169 Histogram measurements, 3–135 How to save to disk, 3–171 Histogram menu, 3–133, 3–134 How to set up for, 3–166 Histogram, Measure menu, 3–120 Index–6 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 343 Icons, File Utilities menu, 3–153, 3–156, 3–162, 3–164 Level, Delayed Trigger menu, 3–112 Independent, Cursor menu, 3–130 Level, Main Trigger menu, 3–76, 3–93, 3–97, 3–102 Infinite Persistence, Display menu, 3–39 Index–7 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 344 See Integral math waveform Delta Time, 3–98 Math waveforms, 3–191 Edge, 3–72, 3–73 Disallowed in InstaVu, 3–59 Either, 3–92, 3–94, 3–97 Math, Color menu, 3–47 Falling edge, 3–85, 3–86 Index–8 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 345 File Utilities, 3–160 Low, 3–115, Glossary–7 Horizontal, 3–68, 3–108 Mask Counting, 3–136 Main, 2–6 Maximum, 3–115, Glossary–7 Main Trigger, 3–72, 3–73, 3–81, 3–85, 3–86, 3–91, Mean, 3–115, 3–135, Glossary–8 3–93, 3–97 Index–9 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 346 Overshoot, Glossary–9 Set operator to, 3–190 Overwrite Lock, File Utilities menu, 3–164 Set Single Source to, 3–189, 3–190 Set Single Source to:, 3–211, 3–216 Single Wfm Math, 3–189, 3–211, 3–216 Index–10 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 347 Principal power switch, 1–7, 2–5 Readout Print, File Utilities menu, 3–163 Acquisition, 3–33 Printer (Color), Option 3I and 3P, A–3 Channel, 2–6, 3–11, 3–50 Cursors, 2–6 Printing a Hardcopy, Reference Article, 3–164 Index–11 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 348 File Utilities, 3–154 Connecting to the GPIB, 3–176 Recall Factory Setup, 3–153 GPIB interface requirements, 3–174 Recall Saved Setup, 3–153 GPIB Protocols, 3–174 Save Current Setup, 3–152 Interconnect cabling, 3–175 Index–12 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 349 Set to TTL, Main Trigger menu, 3–76, 3–93, 3–98, Status menu, 3–179 3–102 Display, 3–179 Set to TTL, Telecom Trigger menu, 3–106 Firmware version, 3–179 Set to Zero, Vertical menu, 3–18 Index–13 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 350 Timeout trigger, 3–89, 3–101, Glossary–12 Trigger, timeout, How to set up, 3–101–3–112 How to set up, 3–101–3–112 Trigger, width, How to set up, 3–96–3–112 Timeout, Main Trigger menu, 3–101, 3–102 Index–14 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 351 Measuring, 3–113 Vertical menu Scaling and positioning, 3–14 20 MHz, 3–17 Waveforms, Status menu, 3–179 250 MHz, 3–17 Width, 2–23, Glossary–8, Glossary–10 Bandwidth, 3–17 Width trigger, 3–89, 3–96 Cal Probe, 3–143 Index–15 TDS 500C, TDS 600B, & TDS 700C User Manual...
Page 352 XY format, Glossary–13 Zoom feature, 3–49 XY, Display menu, 3–43 Zoom menu Dual Zoom, 3–54 Dual Zoom Offset, 3–54 Preview, 3–52 Reset Zoom Factors, 3–52 YT, Format, 3–43 YT format, Glossary–13 Index–16 TDS 500C, TDS 600B, & TDS 700C User Manual...

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