Tektronix TDS 620 Bedienungsanleitung

User Manual

TDS 620 & 640

Digitizing Oscilloscopes

070-8506-01

Please check for change information at the

rear of this manual.

First Printing AUG 1992

Revised NOV 1992

Advanced Test Equipment Rentals

www.atecorp.com 800-404-ATEC (2832)

Instrument Serial Numbers

Each instrument manufactured by Tektronix has a serial number on a panel insert or tag, or stamped on the

chassis. The first letter in the serial number designates the country of manufacture. The last five digits of the

serial number are assigned sequentially and are unique to each instrument. Those manufactured in the United

States have six unique digits. The country of manufacture is identified as follows:

B010000 Tektronix, Inc., Beaverton, Oregon, USA

E200000 Tektronix United Kingdom, Ltd., London

J300000 Sony/Tektronix, Japan

H700000 Tektronix Holland, NV, Heerenveen, The Netherlands

Instruments manufactured for Tektronix by external vendors outside the United States are assigned a two digit

alpha code to identify the country of manufacture (e.g., JP for Japan, HK for Hong Kong, IL for Israel, etc.).

Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077

Printed in U.S.A.

patents, issued and pending. The following are registered trademarks: TEKTRONIX, TEK, TEKPROBE, and

SCOPE-MOBILE.

WARRANTY

Tektronix 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, Tektronix, 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 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. 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. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting

from attempts by personnel other than Tektronix 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 PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR

REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER 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.

This apparatus has been designed and tested in accordance with IEC Publication 348, Safety Requirements for

Electronic Measuring Apparatus, and has been supplied in a safe condition. This manual contains some

information and warnings which have to be followed by the user to ensure safe operation and to retain the

apparatus in safe condition.

The apparatus has been designed for indoor use. It may occasionally be subjected to temperatures between

C and –10

C without degradation of its safety.

TDS 620 & TDS 640 User Manual

Welcome

This is the User Manual for the TDS 620 and TDS 640 Digitizing Oscillo-

scopes.

If you are a new user, the

Tutorial

section will help you become familiar with

the operation of your oscilloscope.

The

Concepts

section covers basic principles of oscilloscope operation.

These articles help you understand why your instrument works the way it

does.

Use the

In Detail

section to learn how to perform specific tasks. See page 3-1

for a complete list of tasks covered in that section.

The

Appendices

provide an option and accessories listing, product specifica-

tion, and other useful information.

The following documents are related to the use or service of the oscilloscope.



The

TDS Family Programmer Manual

(Tektronix part number

070-8318-04) describes using a computer to control the oscilloscope

through the GPIB interface.



The

TDS 620 & 640 Reference

(Tektronix part number 070-8505-01)

gives you a quick overview of how to operate your oscilloscope.



The

TDS Family Option 2F Instruction Manual

(Tektronix part number

070-8582-00) describes use of the Advanced DSP Math option (for TDS

oscilloscopes equipped with that option only).



The

TDS Family Option 13 RS-232/Centronics Hardcopy Interface

Instruction Manual

(Tektronix part number 070-8567-00) describes using

the optional RS-232 and Centronics



interfaces for obtaining hardcopy

(for TDS oscilloscopes equipped with that option only). This manual also

provides module-level service information.



The

TDS 620

TDS 640

Performance Verification

(Tektronix part number

070-8649-00) tells how to verify the performance of the oscilloscope.



The

TDS 620

Service Manual

(Tektronix part number 070-8507-00) and

the

TDS 640 Service Manual

(070-8508-00) provide information for

maintaining and servicing your oscilloscope to the module level.

Related Manuals

Welcome

The

Tutorial

and

In Detail

sections list various procedures which you will

perform. This manual uses the following conventions to keep the instructions

clear and concise:

Names of front-panel controls and menu labels appear in boldface print.

Names are shown as they appear on the oscilloscope front panel and

menus (initial capitals, all uppercase, etc.). For example, front-panel

names are all upper case letters, VERTICAL MENU,CH 1, etc.

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

one step.

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

panel controls and menu buttons, an arrow ( ➞) marks each transition

between a 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 MENU ➞Coupling (main) ➞DC (side) ➞Band-

width (main) ➞100 MHz (side).

Using the convention just described results in instructions that are graphi-

cally intuitive and simplified. For example, the instruction just given re-

places 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 100 MHz

Sometimes you may have to make a selection from a pop-up menu:

Press TRIGGER MENU ➞Type (main) ➞Edge (pop up). In this exam-

ple, you repeatedly press the main menu button Type until Edge is

highlighted in the pop-up menu.

Conventions

TDS 620 & TDS 640 User Manual

iii

Contents

Product Description v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Start Up ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tutorial

Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 1: Displaying a Waveform 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 2: Multiple Waveforms 1-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 3: Automated Measurements 1-12. . . . . . . . . . . . . . . . . . . . . . . .

Example 4: Saving Setups 1-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Concepts

Overview 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Triggering 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Acquisition 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scaling and Positioning Waveforms 2-10. . . . . . . . . . . . . . . . . . . . . . . . . .

Measurements 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

In Detail

Overview 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

At a Glance 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Acquisition Modes 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Autoset 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cursor Measurements 3-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Delayed Triggering 3-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Display Modes 3-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Edge Triggering 3-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardcopy 3-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

Help 3-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Horizontal Control 3-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Limit Testing 3-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic Triggering 3-57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Measurement System 3-65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Cal 3-76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Compensation 3-82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Selection 3-84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pulse Triggering 3-91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Communication 3-98. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Saving and Recalling Setups 3-102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Saving and Recalling Waveforms 3-104. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Channels 3-107. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signal Path Compensation 3-109. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Status 3-111. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Triggering 3-112. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vertical Control 3-116. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Waveform Math 3-119. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Zoom 3-122. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

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

Appendix B: Specification A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix C: Algorithms A-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix D: Packaging for Shipment A-39. . . . . . . . . . . . . . . . . . . . . . . . .

Appendix E: Factory Initialization Settings A-41. . . . . . . . . . . . . . . . . . . .

Glossary & Index

Glossary G-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index I-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Change Information

TDS 620 & TDS 640 User Manual

Product Description

The Tektronix TDS 600 Digitizing Oscilloscopes are superb tools for acquiring,

displaying, and measuring waveforms. Their performance addresses the

needs of both benchtop lab and portable applications with the following fea-

tures:

500 MHz maximum analog bandwidth.

2 Gigasamples/second maximum digitizing rate.

Four channels for acquisition—the TDS 640 lets you use and display all

four channels simultaneously; the TDS 620 lets you use and display any

two channels simultaneously. All channels can acquire at the maximum

digitizing rate.

Waveform Math—Invert a single waveform and add, subtract, and multiply

two waveforms. On instruments equipped with option 2F, integrate or

differentiate a single waveform or perform an FFT (fast fourier transform)

on a waveform to display its magnitude or phase versus its frequency.

Eight-bit digitizers.

Up to 2,000-sample record length per channel.

Full GPIB software programmability.

Complete measurement and documentation capability.

Intuitive graphic icon operation blended with the familiarity of traditional

horizontal and vertical knobs.

On-line help at the touch of a button.

Product Description

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