Tektronix TDS 540 Manuale utente

User Manual

TDS 520 & 540

Digitizing Oscilloscopes

070-8317-01

This document supports Version 2 firmware.

Please check for change information at the rear

of this manual.

First Printing: March 1992

Last Revised: November 1992

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.

Printed in the U.S.A.

Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Microsoft is a registered trademark of Microsoft Corporation

IBM is a registered trademark of International Business Machines

GPIB-PCII and GPIB-PCIIA are registered trademarks of National Instruments Corporation

Epson is a registered trademark of Epson America, Inc.

Interleaf is a trademark of Interleaf, Inc.

PostScript is a registered trademark of Adobe Systems Incorporated

WARRANTY

Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and

workmanship for a period of three (3) years from the date of shipment. If a 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; c) to repair any

damage or malfunction caused by the use of non-Tektronix supplies; or d) 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 IN LIEU OF ANY OTHER WARRANTIES, EXPRESS

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 +5

and –10

C without degradation of its safety.

TDS 520 & TDS 540 User Manual

Welcome

This is the User Manual for the TDS 520 and TDS 540 Digitizing Oscillo-

scopes.

If you are a new user, try the

Tutorial

section to become familiar with the

operation of your digitizing oscilloscope.

The

Concepts

section covers basic principles of the operation of the oscillo-

scope. 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 digitizing

oscilloscope.

The

TDS Family Programmer Manual

(Tektronix part number

070-8318-03) describes using a computer to control the digitizing oscillo-

scope through the GPIB interface.

The

TDS 520 & 540 Reference

(Tektronix part number 070-8316-01)

gives you a quick overview of how to operate your digitizing 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 Instruction Manual

(Tektronix part number

070-8567-00) describes using the optional Centronics

and RS-232

interfaces for obtaining hardcopy (for TDS oscilloscopes equipped with

that option only).

The

TDS 520

TDS 540

Performance Verification

(Tektronix part number

070-8603-00) tells how to verify the performance of the digitizing oscillo-

scope.

The

TDS 520

Service Manual

(Tektronix part number 070-8312-01) and

the

TDS 540 Service Manual

(070-8314-01) provide information for

maintaining and servicing your digitizing oscilloscope to the module level.

Related Manuals

Welcome

In the

Tutorial

and

In Detail

sections, 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:

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

Names also appear in the same case (initial capitals, all uppercase, etc.)

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,

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 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 100 MHz

Sometimes you may have to make a selection from a popup menu: Press

TRIGGER MENU ➞Type (main) ➞Edge (popup). In this example, you

repeatedly press the main menu button Type until Edge is highlighted in

the pop-up menu.

Conventions

TDS 520 & TDS 540 User Manual

iii

Contents

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

Safety vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Start Up viii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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 1-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Concepts

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

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

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

Scaling and Positioning Waveforms 2-13. . . . . . . . . . . . . . . . . . . . . . . . . .

Measurements 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

In Detail

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

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

Acquisition Modes 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Autoset 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cursor Measurements 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Delayed Triggering 3-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Display Modes 3-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Edge Triggering 3-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardcopy 3-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

Help 3-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Horizontal Control 3-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Limit Testing 3-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logic Triggering 3-58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Measurement System 3-66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Accessories 3-77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Cal 3-84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Compensation 3-90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Probe Selection 3-92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pulse Triggering 3-99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remote Communication 3-106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Saving and Recalling Setups 3-110. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Saving and Recalling Waveforms 3-112. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Channels 3-115. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signal Path Compensation 3-117. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Status 3-119. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Triggering 3-120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vertical Control 3-124. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Waveform Math 3-127. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Zoom 3-130. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

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

Appendix B: Specification A-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

Glossary & Index

Change Information

TDS 520 & TDS 540 User Manual

Product Description

Your Tektronix digitizing 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:

500 MHz maximum analog bandwidth.

1 Gigasample/second maximum digitizing rate (TDS 540);

500 Megasamples/second maximum digitizing rate (TDS 520).

Four-channel acquisition—the TDS 540 offers four full-featured channels;

the TDS 520 offers two full-featured channels and two channels with

limited vertical scale selections: 100 mV, 1 V, and 10 V.

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 15,000-point record length per channel (50,000-point optional).

Full GPIB software programmability. GPIB hardcopy output. On instru-

ments equipped with option 13, hardcopy output using the RS-232 or

Centronics ports.

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.

Safety

Please take a moment to review these safety precautions. They are provided

for your protection and to prevent damage to the digitizing oscilloscope. This

safety information applies to all operators and service personnel.

These two terms appear in manuals:

statements identify conditions or practices that could result in

damage to the equipment or other property.

statements identify conditions or practices that could result in

personal injury or loss of life.

These two terms appear on equipment:

CAUTION

indicates a personal injury hazard not immediately accessible

as one reads the marking or a hazard to property including the equipment

itself.

DANGER

indicates a personal injury hazard immediately accessible as

one reads the marking.

This symbol appears in manuals:

Static-Sensitive Devices

These symbols appear on equipment:

DANGER

High Voltage Protective

ground (earth)

terminal

ATTENTION

Refer to

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