Tektronix TDS520B, TDS540B, TDS684B, TDS620B, TDS644B User Manual

User Manual

TDS 500B, TDS 600B & TDS 700A
Digitizing Oscilloscopes

070-9719-00

This document applies for firmware version 1.0
and above.

Copyright  T ektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and
are protected by United States copyright laws and international treaty provisions.

Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in T echnical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the
Commercial Computer Software – Restricted Rights clause at F AR 52.227-19, as applicable.

T ektronix 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.

Printed in the U.S.A.
T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX, TEK, FastFrame, FlexFormat, and InstaVu are registered trademarks of Tektronix, Inc.

WARRANTY

T ektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years
from the date of shipment. If any such product proves defective during this warranty period, T ektronix, at its option, either
will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the
defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by T ektronix, with shipping charges prepaid.
T ektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
T ektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than T ektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; or c) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time or
difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PAR TICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUST OMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

EC Declaration of Conformity

We

Tektronix Holland N.V.
Marktweg 73A
8444 AB Heerenveen
The Netherlands

declare under sole responsibility that the

TDS 520B, TDS 540B, TDS 724A, TDS 754A, TDS 782A and
TDS 784A Digitizing Oscilloscopes

meet the intent of Directive 89/336/EEC for Electromagnetic Compatibility and Low
Voltage Directive 73/23/ECC for Product Safety. Compliance was demonstrated to the
following specifications as listed in the Official Journal of the European Communities:

EMC Directive 89/336/EEC:
EN 55011 Class A Radiated and Conducted Emissions
EN 50081-1 Emissions:

EN 60555-2 AC Power Line Harmonic Emissions

EN 50082-1 Immunity:

IEC 801-2 Electrostatic Discharge Immunity
IEC 801-3 RF Electromagnetic Field Immunity
IEC 801-4 Electrical Fast Transient/Burst Immunity
IEC 801-5 Power Line Surge Immunity

Low Voltage Directive 73/23/EEC:
EN 61010-1 Safety requirements for electrical equipment for

measurement, control, and laboratory use

EC Declaration of Conformity

We

Tektronix Holland N.V.
Marktweg 73A
8444 AB Heerenveen
The Netherlands

declare under sole responsibility that the

TDS 620B, TDS 644B, TDS 680B, and TDS 684B Digitizing Oscilloscopes

meet the intent of Directive 89/336/EEC for Electromagnetic Compatibility and Low
Voltage Directive 73/23/ECC for Product Safety. Compliance was demonstrated to the
following specifications as listed in the Official Journal of the European Communities:

EMC Directive 89/336/EEC:
EN 55011 Class B Radiated and Conducted Emissions
EN 50081-1 Emissions:

EN 60555-2 AC Power Line Harmonic Emissions

EN 50082-1 Immunity:

IEC 801-2 Electrostatic Discharge Immunity
IEC 801-3 RF Electromagnetic Field Immunity
IEC 801-4 Electrical Fast Transient/Burst Immunity
IEC 801-5 Power Line Surge Immunity

Table of Contents

Getting Started

Operating Basics

General Safety Summary ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preface xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Related Manuals xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Default Model xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model References xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Conventions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Differences by Model 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Specification 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Start Up 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparation 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Putting into Service 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Interface Maps 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tutorial 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting Up for the Examples 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 1: Displaying a Waveform 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 2: Displaying Multiple Waveforms 2–15. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 3: T aking Automated Measurements 2–19. . . . . . . . . . . . . . . . . . . . . . . . . .

Example 4: Saving Setups 2–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reference

Overview 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Acquiring and Displaying Waveforms 3–3. . . . . . . . . . . . . . . . . . . . . . . . .

Coupling Waveforms to the Oscilloscope 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting up Automatically: Autoset and Reset 3–6. . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Channels 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scaling and Positioning Waveforms 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Choosing an Acquisition Mode 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Customizing the Display 3–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Customizing the Display Color 3–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Zooming on Waveforms 3–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using InstaVu Acquisition Mode (TDS 500B and 700A Models Only) 3–45. . . . .

Using FastFrame (TDS 500B and 700A Models Only) 3–48. . . . . . . . . . . . . . . . . .

Triggering on Waveforms 3–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Triggering Concepts 3–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Triggering from the Front Panel 3–55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Triggering on a Waveform Edge 3–59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TDS 500B, TDS 600B, & TDS 700A User Manual

i

Table of Contents

Triggering Based on Logic 3–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Triggering on Pulses 3–72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Delayed Triggering 3–84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Measuring Waveforms 3–91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T aking Automated Measurements 3–91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T aking Cursor Measurements 3–101. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T aking Graticule Measurements 3–105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optimizing Measurement Accuracy: SPC and Probe Cal 3–106. . . . . . . . . . . . . . . . . .

Saving Waveforms and Setups 3–115. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Saving and Recalling Setups 3–115. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Saving and Recalling Waveforms 3–118. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Managing the File System 3–121. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Printing a Hardcopy 3–125. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Communicating with Remote Instruments 3–134. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Determining Status and Accessing Help 3–139. . . . . . . . . . . . . . . . . . . . . . . .

Displaying Status 3–139. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Displaying Help 3–141. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using Features for Advanced Applications 3–143. . . . . . . . . . . . . . . . . . . . . .

Limit Testing 3–143. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Waveform Math 3–148. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fast Fourier Transforms 3–150. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Waveform Differentiation 3–167. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Waveform Integration 3–171. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

Glossary
Index

Appendix A: Options and Accessories A–1. . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix B: Algorithms B–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix C: Packaging for Shipment C–1. . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix D: Factory Initialization Settings D–1. . . . . . . . . . . . . . . . . . . . .

Appendix E: Probe Selection E–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix F: Inspection and Cleaning F–1. . . . . . . . . . . . . . . . . . . . . . . . . .

ii

TDS 500B, TDS 600B, & TDS 700A User Manual

List of Figures

Table of Contents

Figure 1–1: Rear Panel Controls Used in Start Up 1–5. . . . . . . . . . . . . . .

Figure 1–2: ON/STBY Button 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–1: Connecting a Probe for the Examples (P6245 shown) 2–9. .

Figure 2–2: SETUP Button Location 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–3: The Setup Menu 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–4: Trigger Controls 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–5: The Display After Factory Initialization 2–12. . . . . . . . . . . . .

Figure 2–6: The VERTICAL and HORIZONTAL Controls 2–13. . . . . . .

Figure 2–7: TRIGGER Controls 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–8: AUTOSET Button Location 2–14. . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–9: The Display After Pressing Autoset 2–15. . . . . . . . . . . . . . . . .

Figure 2–10: Display Signals Requiring Probe Compensation 2–15. . . . . .

Figure 2–11: The Channel Buttons and Lights 2–16. . . . . . . . . . . . . . . . . . .

Figure 2–12: The Vertical Main Menu and Coupling Side Menu 2–17. . . .

Figure 2–13: The Menus After Changing Channels 2–18. . . . . . . . . . . . . .

Figure 2–14: Measure Main Menu and Select Measurement

Side Menu 2–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–15: Four Simultaneous Measurement Readouts 2–21. . . . . . . . .

Figure 2–16: General Purpose Knob Indicators 2–22. . . . . . . . . . . . . . . . .

Figure 2–17: Snapshot of Channel 1 2–23. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–18: Save/Recall Setup Menu 2–25. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–1: How Probe Compensation Affects Signals 3–4. . . . . . . . . . . .

Figure 3–2: P6139A Probe Adjustment 3–5. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–3: The Channel Readout 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–4: Waveform Selection Priority 3–10. . . . . . . . . . . . . . . . . . . . . . .

Figure 3–5: Scaling and Positioning 3–11. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–6: Vertical Readouts and Channel Menu 3–12. . . . . . . . . . . . . . .

Figure 3–7: Record View and Time Base Readouts 3–14. . . . . . . . . . . . . . .

Figure 3–8: Horizontal Controls 3–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–9: Acquisition: Input Analog Signal, Sample, and Digitize 3–18.
Figure 3–10: Several Points May be Acquired for Each Point Used 3–18.

Figure 3–11: Real-Time Sampling 3–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–12: Equivalent-Time Sampling 3–19. . . . . . . . . . . . . . . . . . . . . . .

Figure 3–13: How the Acquisition Modes Work 3–22. . . . . . . . . . . . . . . . .

TDS 500B, TDS 600B, & TDS 700A User Manual

iii

Table of Contents

Figure 3–14: Acquisition Menu and Readout 3–24. . . . . . . . . . . . . . . . . . . .

Figure 3–15: Acquire Menu — Stop After 3–27. . . . . . . . . . . . . . . . . . . . . .

Figure 3–16: Aliasing 3–28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–17: Display Menu — Style 3–31. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–18: Trigger Point and Level Indicators 3–32. . . . . . . . . . . . . . . . .

Figure 3–19: Display Menu — Setting 3–35. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–20: Display Menu — Palette Colors 3–37. . . . . . . . . . . . . . . . . . .

Figure 3–21: Display Menu — Map Reference Colors 3–38. . . . . . . . . . . .

Figure 3–22: Display Menu — Restore Colors 3–39. . . . . . . . . . . . . . . . . . .

Figure 3–23: Zoom Mode with Horizontal Lock Set to None 3–41. . . . . . .

Figure 3–24: Dual Window (Preview) Mode 3–43. . . . . . . . . . . . . . . . . . . . .

Figure 3–25: Dual Zoom — Shown Dual Window (Preview) Mode 3–44. .
Figure 3–26: Normal DSO Acquisition and Display Mode Versus

InstaVu Mode 3–46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–27: InstaVu Display 3–47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–28: Fast Frame 3–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–29: Horizontal Menu — FastFrame Setup 3–49. . . . . . . . . . . . . .

Figure 3–30: Triggered Versus Untriggered Displays 3–51. . . . . . . . . . . . .

Figure 3–31: Trigger Holdoff Time Ensures Valid Triggering 3–54. . . . . .

Figure 3–32: Slope and Level Controls Help Define the Trigger 3–55. . . .

Figure 3–33: TRIGGER Controls and Status Lights 3–56. . . . . . . . . . . . . .

Figure 3–34: Example Trigger Readouts — Edge Trigger Selected 3–58. .
Figure 3–35: Record View, Trigger Position, and Trigger Level Bar

Readouts 3–58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–36: Edge Trigger Readouts 3–59. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–37: Main Trigger Menu — Edge Type 3–60. . . . . . . . . . . . . . . . .

Figure 3–38: Violation Zones for Setup/Hold Triggering 3–65. . . . . . . . . .

Figure 3–39: Logic Trigger Readouts — State Class Selected 3–66. . . . . .

Figure 3–40: Logic Trigger Menu 3–67. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–41: Logic Trigger Menu — Time Qualified TRUE 3–69. . . . . . .

Figure 3–42: Triggering on a Setup/Hold Time Violation 3–72. . . . . . . . . .

Figure 3–43: Pulse Trigger Readouts 3–73. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–44: Main Trigger Menu — Glitch Class 3–75. . . . . . . . . . . . . . . .

Figure 3–45: Main Trigger Menu — Runt Class 3–78. . . . . . . . . . . . . . . . .

Figure 3–46: Main Trigger Menu — Slew Rate Class 3–82. . . . . . . . . . . . .

Figure 3–47: Delayed Runs After Main 3–85. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–48: Delayed Triggerable 3–85. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–49: How the Delayed Triggers Work 3–87. . . . . . . . . . . . . . . . . . .

Figure 3–50: Delayed Trigger Menu 3–88. . . . . . . . . . . . . . . . . . . . . . . . . . .

iv

TDS 500B, TDS 600B, & TDS 700A User Manual

Table of Contents

Figure 3–51: Graticule, Cursor and Automated Measurements 3–91. . . .

Figure 3–52: Measurement Readouts 3–94. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–53: Measure Menu 3–95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–54: Measure Menu — Gating 3–96. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–55: Measure Menu — Reference Levels 3–97. . . . . . . . . . . . . . . .

Figure 3–56: Measure Delay Menu — Delay To 3–98. . . . . . . . . . . . . . . . . .

Figure 3–57: Snapshot Menu and Readout 3–100. . . . . . . . . . . . . . . . . . . . . .

Figure 3–58: Cursor Types 3–101. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–59: Cursor Modes 3–102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–60: H Bars Cursor Menu and Readouts 3–103. . . . . . . . . . . . . . . .

Figure 3–61: Paired Cursor Menu and Readouts 3–104. . . . . . . . . . . . . . . .

Figure 3–62: Performing a Signal Path Compensation 3–108. . . . . . . . . . . .

Figure 3–63: Probe Cal Menu and Gain Compensation Display 3–111. . . .

Figure 3–64: Re-use Probe Calibration Data Menu 3–113. . . . . . . . . . . . . . .

Figure 3–65: Save/Recall Setup Menu 3–116. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–66: Save Waveform Menu 3–119. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–67: More Menu 3–120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–68: File Utilities 3–123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–69: File System — Labeling Menu 3–124. . . . . . . . . . . . . . . . . . . . .

Figure 3–70: Utility Menu — System I/O 3–127. . . . . . . . . . . . . . . . . . . . . . .

Figure 3–71: Hardcopy Formats 3–128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–72: Date and Time Display 3–129. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–73: Connecting the Oscilloscope Directly to the

Hardcopy Device 3–130. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–74: Connecting the Oscilloscope and Hardcopy Device Via

a PC 3–132. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–75: Typical GPIB Network Configuration 3–135. . . . . . . . . . . . . .

Figure 3–76: Stacking GPIB Connectors 3–135. . . . . . . . . . . . . . . . . . . . . . .

Figure 3–77: Connecting the Oscilloscope to a Controller 3–136. . . . . . . . .

Figure 3–78: Utility Menu 3–137. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–79: Status Menu — System 3–140. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–80: Banner Display 3–140. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–81: Initial Help Screen 3–141. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–82: Comparing a Waveform to a Limit Template 3–143. . . . . . . .

Figure 3–83: Acquire Menu — Create Limit Test Template 3–145. . . . . . . .

Figure 3–84: More Menu 3–148. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–85: Dual Waveform Math Main and Side Menus 3–149. . . . . . . .

Figure 3–86: System Response to an Impulse 3–152. . . . . . . . . . . . . . . . . . . .

Figure 3–87: Define FFT Waveform Menu 3–153. . . . . . . . . . . . . . . . . . . . . .

TDS 500B, TDS 600B, & TDS 700A User Manual

v

Table of Contents

Figure 3–88: FFT Math Waveform in Math1 3–154. . . . . . . . . . . . . . . . . . . .

Figure 3–89: Cursor Measurement of an FFT Waveform 3–156. . . . . . . . . .

Figure 3–90: Waveform Record vs. FFT Time Domain Record 3–157. . . . .

Figure 3–91: FFT Time Domain Record vs. FFT Frequency Domain

Record 3–158. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–92: How Aliased Frequencies Appear in an FFT 3–162. . . . . . . . .

Figure 3–93: Windowing the FFT Time Domain Record 3–165. . . . . . . . . .

Figure 3–94: FFT Windows and Bandpass Characteristics 3–167. . . . . . . .

Figure 3–95: Derivative Math Waveform 3–169. . . . . . . . . . . . . . . . . . . . . . .

Figure 3–96: Peak-Peak Amplitude Measurement of a

Derivative Waveform 3–170. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–97: Integral Math Waveform 3–173. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–98: H Bars Cursors Measure an Integral Math Waveform 3–174

Figure B–1: MCross Calculations B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure B–2: Fall Time B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure B–3: Rise Time B–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure B–4: Choosing Minima or Maxima to Use for Envelope

Measurements B–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure E–1: Typical High Voltage Probes E–2. . . . . . . . . . . . . . . . . . . . . . .

Figure E–2: A6303 Current Probe Used in the AM 503S Opt. 03 E–4. . .

vi

TDS 500B, TDS 600B, & TDS 700A User Manual

List of Tables

Table of Contents

Table 1–1: Key Features and Differences of Models 1–2. . . . . . . . . . . . . .

Table 1–2: Fuse and Fuse Cap Part Numbers 1–5. . . . . . . . . . . . . . . . . . .

Table 3–1: Autoset Defaults 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–2: How Interleaving Affects Sample Rate 3–21. . . . . . . . . . . . . . .

Table 3–3: Additional Resolution Bits 3–24. . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–4: TDS 500B and TDS 700A Sampling Mode Selection

(When Fit to Screen is Off) 3–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–5: XY Format Pairs 3–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–6: Pattern and State Logic 3–64. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–7: Pulse Trigger Definitions 3–74. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–8: Measurement Definitions 3–92. . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–9: Probe Cal Status 3–114. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–1: Options A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–2: Standard Accessories A–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–3: Optional Accessories A–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–4: Accessory Software A–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–1: Factory Initialization Defaults D–1. . . . . . . . . . . . . . . . . . . . . .

Table F–1: External Inspection Check List F–2. . . . . . . . . . . . . . . . . . . . .

TDS 500B, TDS 600B, & TDS 700A User Manual

vii

Table of Contents

viii

TDS 500B, TDS 600B, & TDS 700A User Manual

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use the
product only as specified.

Only qualified personnel should perform service procedures.

Injury Precautions

Use Proper Power Cord. To avoid fire hazard, use only the power cord specified

for this product.
Avoid Electric Overload. To avoid electric shock or fire hazard, do not apply a

voltage to a terminal that is outside the range specified for that terminal.
Avoid Electric Shock. To avoid injury or loss of life, do not connect or disconnect

probes or test leads while they are connected to a voltage source.
Ground the Product. This product is grounded through the grounding conductor

of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.

Do Not Operate Without Covers. To avoid electric shock or fire hazard, do not
operate this product with covers or panels removed.

Use Proper Fuse. To avoid fire hazard, use only the fuse type and rating specified
for this product.

Do Not Operate in Wet/Damp Conditions. To avoid electric shock, do not operate
this product in wet or damp conditions.

Do Not Operate in an Explosive Atmosphere. To avoid injury or fire hazard, do not
operate this product in an explosive atmosphere.

Keep Probe Surface Clean and Dry . To avoid electric shock and erroneous
readings, keep probe surface clean and dry.

Product Damage

Precautions

TDS 500B, TDS 600B, & TDS 700A User Manual

Use Proper Power Source. Do not operate this product from a power source that
applies more than the voltage specified.

Provide Proper Ventilation. To prevent product overheating, provide proper
ventilation.

Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.

ix

General Safety Summary

Symbols and Terms

T erms in this Manual. These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.

T erms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the

marking.
WARNING indicates an injury hazard not immediately accessible as you read the

marking.
CAUTION indicates a hazard to property including the product.

Symbols on the Product. The following symbols may appear on the product:

Certifications and

Compliances

DANGER

High Voltage

Protective Ground

(Earth) T erminal

ATTENTION

Refer to Manual

Double

Insulated

Refer to the specifications section in the Performance Verfication manual for a
listing of certifications and compliances that apply to this product.

x

TDS 500B, TDS 600B, & TDS 700A User Manual

Preface

Related Manuals

This is the User Manual for the TDS 500B, TDS 600B, & TDS 700A 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.

The chapter Operating Basics covers basic principles of the operation of the
oscilloscope. The operating interface illustrations and the tutorial examples
rapidly help you understand how your oscilloscope operates.

The chapter Reference teaches you how to perform specific tasks. See page 3–1
for a complete list of operating tasks covered in that chapter.

The Appendices provide an options listing, an accessories listing, and other
useful information.

The following documents are related to the use or service of the oscilloscope.
 The TDS Family Digitizing Oscilloscopes Programmer Manual (Tektronix

part number 070-

oscilloscope through the GPIB interface.
 The TDS 500B, TDS 600B, & TDS 700A Reference (Tektronix part number

070-9382-XX) gives you a quick overview of how to operate the oscillo-

scope.

 The TDS 500B, TDS 600B, & TDS 700A Technical Reference (Performance

Verification and Specifications) (Tektronix part number 070-9720-XX) tells

how to verify the performance of the oscilloscope and lists its specifications.
 The TDS Family Option 05 Video Trigger Instruction Manual (Tektronix

part number 070-8748-XX) describes use of the video trigger option (for

TDS oscilloscopes equipped with that option only).
 The TDS 500B, TDS 600B, & TDS 700A Service Manual (Tektronix part

number 070-9721-XX) provides information for maintaining and servicing

the oscilloscope to the module level.

9556-XX) describes using a computer to control the

TDS 500B, TDS 600B, & TDS 700A User Manual

xi

Preface

Default Model

Model References

This manual documents the TDS 500B, TDS 600B, & TDS 700A 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; if your oscilloscope is one of models TDS 520B, TDS 620B,
TDS 680B, TDS 724A, or TDS 782A, read AUX 1 and AUX 2 respectively
for all references to CH 3 and CH 4 in this manual.

 The TDS 684B display screen appears as the default screen wherever a

display screen is illustrated in this manual.

This manual documents the TDS 500B, TDS 600B, & TDS 700A Digitizing
Oscilloscopes. Take note of the following conventions used when referencing
these oscilloscopes:

Conventions

 The name “TDS 500B” is used when providing information common to the

TDS 520B and TDS 540B model oscilloscopes.

 The name “TDS 600B” is used when providing information common to the

TDS 620B, TDS 644B, TDS 680B, and TDS 684B model oscilloscopes.

 The name “TDS 700A” is used when providing information common to the

TDS 724A, TDS 754A, TDS 782A, and TDS 784A model oscilloscopes.

In this manual, you will find various procedures which contain steps of
instructions for you to perform. To keep those instructions clear and consistent,
this manual uses the following conventions:

 In procedures, names of front panel controls and menu labels appear in

boldface print.

 Names also appear in the same case (initial capitals or all uppercase) in the

manual as is used on the oscilloscope front panel and menus. Front panel names
are all upper case letters, for example, VERTICAL MENU and CH 1.

 Instruction steps are numbered. The number is omitted if there is only one step.

xii

 When steps require that you make a sequence of selections using front panel

controls and menu buttons, an arrow ( ➞
front panel button and a menu, or between menus. Also, whether a name is a
main menu or side menu item is clearly indicated: Press VERTICAL

TDS 500B, TDS 600B, & TDS 700A User Manual

) marks each transition between a

Preface

MENU ➞ Coupling (main) ➞ DC (side) ➞ Bandwidth (main) ➞

250 MHz (side).

Using the convention just described results in instructions that are graphically
intuitive and simplifies procedures. For example, the instruction just given
replaces these five steps:

1. Press the front-panel button VERTICAL MENU.

2. Press the main-menu button Coupling.

3. Press the side-menu button DC.

4. Press the main-menu button Bandwidth.

5. Press the side-menu button 250 MHz.

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.

TDS 500B, TDS 600B, & TDS 700A User Manual

xiii

Preface

xiv

TDS 500B, TDS 600B, & TDS 700A User Manual

Getting Started

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:

H 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)
H A analog bandwidth of 1 GHz or 500 MHz, depending on the model (see

Table 1–1)
H Records lengths up to 50 K standard and 500 K with Option 1M, depending

on the model (see Table 1–1)
H Four channel or 2 + 2 channel operation, depending on model. (Two plus

Two channel operation allows two of four channels to be displayed

simultaneously.) All channels have 8-bit resolution. (See Table 1–1.)
H Trigger modes include edge, logic, and pulse. Video trigger modes, available

with option 05 only, include NTSC, SECAM, PAL, HDTV, and FlexFor-

matT.
H Dual Window Zoom, which shows a waveform magnified and unmagnified

on the same display — on all TDS 600B and TDS 700 Oscilloscopes
H Sample, envelope, average, high res, peak-detect and InstaVuT acquisition

mode, which updates the display at rates rivaling the fastest analog oscillo-

scopes (see Table 1–1 for models and modes available)

TDS 500B, TDS 600B, & TDS 700A User Manual

1–1

Product Description

Differences by Model

Table 1–1 lists some key TDS features and relates them to the different
TDS models that this manual covers.

T able 1–1: Key Features and Differences of Models

Feature 520B 540B 620B 644B 680B 684B 724A 754A 782A 784A

No. of channels 2+2
Digitizing rate, max. 1 GS/s 2 GS/s

1

4 2 + 2

2

No. of Chs. @ max. rate 1 2 4 2 4 1 2 1
Analog Bandwidth 500 MHz 1 GHz 500 MHz 1 GHz
Record Lengths, max. To 50K/Channel

3

InstaVu Acquisitions Yes No Yes
Hi Res Acquisitions Yes No Yes
Advanced DSP Math

4

Opt. 2F Std.

1

4 2 + 2

1

4 2 + 2

1

4 2 + 2

1

2.5 GS/s 5 GS/s 1 GS/s 2 GS/s 2 GS/s 4 GS/s

T o 15K/Channel T o 50K/Channel

5

Opt. 2F Std.

3

4

Storage, Floppy Disk Opt. 1F Std. Opt. 1F Std.
I/0 includes RS–232 and

Centronics

6

Opt. 13 Std. Opt. 13 Std.

Display Mono Color Mono Color

1

Two plus Two channel operation allows two of four channels to be displayed simultaneously. Channels not displayed can
be used to couple a triggering signal to the oscilloscope.

2

This TDS model can be purchased with Option 1G, which limits the maximum digitizing rate to 1GS/second. This option
allows sales in export-controlled countries. See Option 1G on page A–1.

3

This TDS model can be purchased with Option 1M, which adds longer record length settings. See Option 1M on
page A–2.

4

Advanced digital signal processing provides FFTs, integrals, and differentials of waveforms. See Option 2F on page A–4.

5

Std. denotes a standard product feature as opposed to a feature included as part of an option.

6

GPIB I/O included with all models.

Product Specification

The product specification is found in the technical reference TDS 500B,
TDS 600B, & TDS 700A Technical Reference (Performance Verification and
Specifications) that is shipped as a standard accessory with the TDS Oscillo-

scope.

1–2

TDS 500B, TDS 600B, & TDS 700A User Manual

Start Up

Preparation

Before you use the TDS Oscilloscope, ensure that it is properly installed and
powered on.

To ensure maximum accuracy for your most critical measurements, you should
know about signal path compensation and the proper use of the probe you choose
to use with your oscilloscope.

Signal Path Compensation

Recommended Probes

Probe Usage

Be sure you compensate your oscilloscope for the surrounding temperature. This
action, called Signal Path Compensation (SPC), ensures maximum possible
accuracy for your most critical measurements. See Signal Path Compensation on
page 3–106 for a description of and operating information on this feature.

The TDS 680B, TDS 684B, TDS 782A, and TDS 784A oscilloscopes ship
without probes. To take advantage of the higher bandwidth of the TDS 680B,
TDS 684B, TDS 782A, and TDS 784A Oscilloscopes, order the P6245 Active
Probe.

The remaining TDS 500B, TDS 600B, and TDS 700A 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 on in Standard Accessories on page A–4.

For a list of optional-accessory probes for all TDS 500B, TDS 600B, and
TDS 700A oscilloscope models, see Accessory Probes on page A–5.

Be sure you use the appropriate probe for the measurement. For instance, do not
use the P6245 Active Probe to measure signals greater than ±8 volts or with
more than ±10 volts of offset, since errors in signal measurement will result. (See
the User manual for the probe for more information.) Instead, use a passive
probe, such as P6139A passive probe, that allows higher voltage measurements.
The P6139A probe is for measurements up to ±500 volts.

CAUTION. Using the P6243 or P6245 Active Probe to measure signals greater
than ±40 volts may damage the probe.

TDS 500B, TDS 600B, & TDS 700A User Manual

1–3

Start Up

Input Coupling

Putting into Service

Installation

Be sure to choose the proper input coupling and impedance for the probe or other
cabling you use to couple signals to your oscilloscope. You should read Input
Impedance Considerations on page 3–5 for information needed to ensure proper
coupling of your input signals.

To learn how to install, access the front panel, power on, do a self test, and
power off the oscilloscope, do the following procedures:

To properly install and power on the oscilloscope, do the following steps:

1. Be sure you have the appropriate operating environment. Specifications for

temperature, relative humidity, altitude, vibrations, and emissions are
included in the TDS 500B, TDS 600B, & TDS 700A Technical Reference
(Performance Verification and Specifications) manual (Tektronix part
number 070-9720-xx).

2. Leave space for cooling. Do this by verifying that the air intake and exhaust

holes on the sides of the cabinet (where the fan operates) are free of any
airflow obstructions. Leave at least 5.1 cm (2 inches) free on each side.

WARNING. To avoid electrical shock, be sure that the power cord is disconnected
before checking the fuse.

3. Check the fuse to be sure it is the proper type and rating (see Figure 1–1).

You can use either of two fuses. Each fuse requires its own cap (see
Table

1–2). The oscilloscope is shipped with the UL approved fuse installed.

4. Check that you have the proper electrical connections. The oscilloscope

requires 90 to 250 VAC
require up to 300 W.

5. Connect the proper power cord from the rear-panel power connector (see

Figure 1–1) to the power system.

, continuous range, 45 Hz to 440 Hz, and may

RMS

1–4

TDS 500B, TDS 600B, & TDS 700A User Manual

Power Connector

Principal Power Switch

Fuse

Start Up

Figure 1–1: Rear Panel Controls Used in Start Up

T able 1–2: Fuse and Fuse Cap Part Numbers

Front Cover Removal

Power On

Fuse Cap

Fuse Fuse Part Number

0.25 inch × 1.25 inch (UL 198.6, 3AG): 6 A
FAST, 250 V

5 mm × 20 mm (IEC 127): 5 A (T), 250 V 159-0210-00 200-2265-00

159-0013-00 200-2264-00

Part Number

To remove the front cover, grasp the left and right edges and snap the cover off
of the front subpanel. (To reinstall the cover, align it to the front subpanel and
snap it back on.)

To power on the oscilloscope, do the following steps:

1. Check that the rear-panel principal power switch is on (see Figure 1–1). The

principal power switch controls all 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).

TDS 500B, TDS 600B, & TDS 700A User Manual

1–5

Start Up

ON/STBY Button

Self Test

Power Off

Figure 1–2: ON/STBY Button

The ON/STBY button controls power to most of the instrument circuits. Power
continues to go to certain parts even when this switch is set to STBY.

Once the oscilloscope is installed, it is typical to leave the principal power
switch on and use the ON/STBY button instead of the power switch.

The oscilloscope automatically performs power-up tests each time it is turned on.
It will come up with a display screen that states whether or not it passed the self
test. To determine the self-test results, check the screen. (If the self test passed,
the status display screen will be removed after a few seconds.)

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.

To power off the oscilloscope, toggle the ON/STBY switch.

1–6

TDS 500B, TDS 600B, & TDS 700A User Manual

Operating Basics

Overview

This chapter describes the basic concepts of operating the TDS Oscilloscope.
Understanding the basic concepts of your oscilloscope will help you use it much
more effectively.

The first section, Operating Interface Maps, quickly shows you how the
oscilloscope controls are organized and where you can read about them. It also
illustrates the general procedures for operating the menu system. This section
includes the titles:

 Front Panel Map
 Rear Panel Map
 Display Map
 To Operate a Menu
 To Operate a Pop-Up Menu

The second section, Tutorial, contains example procedures that lead you through
the fundamental tasks needed to display a waveform measurement. It also
includes an example procedure that teaches you how to store a setup of the
oscilloscope controls for later use. This section includes the following tuto­rial examples:

 Setting Up for the Examples
 Example 1: Displaying a Waveform
 Example 2: Displaying Multiple Waveforms
 Example 3: Taking Automated Measurements
 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.

TDS 500B, TDS 600B, & TDS 700A User Manual

2–1

Overview

2–2

TDS 500B, TDS 600B, & TDS 700A User Manual