Tektronix 8.00E+04 User manual

User Manual

80E01, 80E02, 80E03, 80E04 & 80E06

Electrical Sampling Modules

071-0434-05

This document applies to firmware version 1.00

and above.

www.tektronix.com

suppliers, and are protected by national copyright laws and i nternational treaty provisions.

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.

TEKT RONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc.

14200 SW Karl Braun Drive

P.O. Box 500

Beaverton, OR 97077

USA

For produc t information, sales, service, and technical support:

H In North America, call 1-800-833-9200.

H Worldwide, visit www. tektronix.com to find contacts in your area.

Warranty 2

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year

from the date of shipment. If any such product proves defecti ve duri ng this warranty period, Tekt ronix, 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. Parts, modules and replacement products used by Tektronix for warranty work may be new or

reconditioned to like new performanc e. All replaced parts, modul es and products become the property of Tektronix.

In order t o obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the

warranty peri od and make suitable arrangem ents for the pe rformance 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 locati on within the count ry 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, fail ure or damage c aused by improper use or im proper 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 othe r than Tekt ronix representatives to install, repair or service the product; b) to repair

damage resulting from improper use or connection to incompatible equipment ; c) to repai r any dama ge 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 integrati on inc reases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER

WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED

WARRANTIES OF MERCHANT ABILITY 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, INCIDENT AL, OR CONSEQUENTIAL DAMAGES

IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY

OF SUCH DAMAGES.

80E00 Electrical Sampling Modules User Manual

i

Table of Contents

General Safety Summary iii...................................

Environmental Considerations v...............................

Preface vii...................................................

Manual Structure vii................................................

Related Documentation vii...........................................

Getting Started 1............................................

Product Description 2..............................................

Options and Accessories 4...........................................

Options 4.....................................................

Standard Accessories 4..........................................

Optional Accessories 4..........................................

Installation 6.....................................................

Electrostatic Discharge 6........................................

Static Controlled Workstation 7...................................

Module Installation 8...........................................

Compensation 9...............................................

Operating Basics 11..........................................

Usage 11.........................................................

Front-Panel Controls 12..............................................

Signal Connector 12.............................................

Channel Selection 12............................................

TEKPROBE Connector 13........................................

TDR On Indic ator 13............................................

System Interaction 13...............................................

Commands From the Main Instrument Front Panel 13......................

Programmer Interface Commands 14...................................

User Adjustments 14................................................

Cleaning 14.......................................................

Reference 17.................................................

Taking TDR Measurement s 17........................................

TDR Measurements Background 27....................................

Finding the Velocity of Propagation and Locating Mismatches 30.........

TDR Measurement Units 30.......................................

Making Accurate TDR Measurements 32............................

Taking Differential and Common-Mode TDR Mea surements 32.............

Connector and Adapter Care Requirements 38...........................

Visual Inspection 38.............................................

Cleaning Connectors 39..........................................

Assembly and Torquing 41........................................

TDR Impedance Measuring 43......................................

Detecting Blown Inputs 43...........................................

EOS (Electrical Overstress) Prevention 44...............................

Specifications 47.............................................

Glossary 53.................................................

Index 55....................................................

Table of Contents

ii

80E00 Electrical Sampling Modules User Manual

List of Figures

Figure 1: Samplin g module block diagram 3.....................

Figure 2: Samplin g module, 80E04 shown 3.....................

Figure 3: Sampling module compartments 6.....................

Figure 4: Installing a sampling module 8........................

Figure 5: Samplin g module, 80E04 shown 12.....................

Figure 6: Vertical Setup dialog box 14...........................

Figure 7: Simplified schematic diagram of step

generator - positive polarity 18..............................

Figure 8: Step generator with a shorted output 19.................

Figure 9: Step generation with a 50 Ω load 19.....................

Figure 10: Step generation with an open circuit 19.................

Figure 11: TDR disp lays for typical loads 21......................

Figure 12: Microstrip discontinuities 27..........................

Figure 13: TDR waveform of microstrip in Figure 12 28............

Figure 14: TDR step and reflection (short) 29.....................

Figure 15: TDR step and reflection

(50 Ω line terminated in 75 Ω)31............................

Figure 16: TDR step of undamaged sampling module 44............

Figure 17: First example of EOS error 45........................

Figure 18: Second example of EOS error showing

cumulative effect 46.......................................

List of Tables

Table 1: Application software version required 1.................

Table 2: Sampling module features 2...........................

Table 3: Standard accessories 4...............................

Table 4: Optional accessories 4................................

Table 5: Torque Wrench Information 42.........................

Table 6: Electrical sampling modules -- Descriptions 47............

Table 7: Electrical sampling modu les -- Sign al acquisition 48.......

Table 8: Electrical sampling modu le (80E04) -- TDR system 50......

Table 9: Electrical sampling modules -- Timebase system 51........

Table 10: Electrical sampling modu les -- Power consumption 51.....

Table 11: Electrical sampling modules -- Mechanical 52............

80E00 Electrical Sampling Modules User Manual

iii

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 this product only as specified.

Only qualified personnel should perform service procedures.

While using this product, you may need to access other parts of the system. Read

the General Safety Summary in other system manuals for warnings and cautions

related to operating the system.

Ground the Product. This product is indirectly grounded through the grounding

conductor of the mainframe 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.

Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings

and markings on the product. Consult the product manual for further ratings

information before making connections to the product.

Do Not Operat e Without Covers. Do not operate this product with covers or panels

removed.

Avoid Exposed Circuitry. Do not touch exposed connections and components

when power is present.

Wear Eye Prot ection. Wear eye protection if exposure to high-intensity rays or

laser radiation exists.

Do Not Operat e With Suspected Failures. If you suspect there is damage to this

product, have it inspected by qualified service personnel.

Do Not Operat e in Wet/Damp Conditions.

Do Not Operat e in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

ToAvoidFireor

Personal Injury

General Safety Summary

iv

80E00 Electrical Sampling Modules User Manual

Terms 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.

Terms on t he 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:

CAUTION

Refer to Manual

WARNING

High Voltage

Protective Ground

(Earth) Terminal

Symbols and Terms

80E00 Electrical Sampling Modules User Manual

v

Environmental Considerations

This section provides information about the environmental impact of the

product.

Observe the following guidelines when recycling an instrument or component:

Equipment Recycling. Production of this equipment required the extraction and

use of natural resources. The equipment may contain substances that could be

harmful to the environment or human health if improperly handled at the

product’s end of life. In order to avoid release of such substances into the

environment and to reduce the use of natural resources, we encourage you to

recycle this product in an appropriate system that will ensure that most of the

materials are reused or recycled appropriately.

The symbol shown to the

left indicates that this

product complies with the

European Union’s require-

ments according to Direc-

tive 2002/96/EC on waste

electrical and electronic

equipment (WEEE). F or

information about recycl-

ing options, check the

Support/Service section of

the Tektronix Web site

(www.tektronix.com).

This product has been classified as Monitoring and Control equipment, and is

outside the scope of the 2002/95/EC RoHS Directive. This product is known to

contain lead, cadmium, and hexavalent chromium.

Product End-of-Life

Handling

Restriction of Hazardous

Substances

Environmental Considerations

vi

80E00 Electrical Sampling Modules User Manual

vii

Preface

This is the user manual for the 80E01, 80E02, 80E03, 80E04, and 80E06

sampling modules. It covers the following information:

H Description of the capabilities of the sampling modules and how to install

them

H Explanation of how to operate the sampling modules: how to control

acquisition, processing, and input/output of information

H List of the specifications of the sampling modules

You may want to visit the Tektronix Website at http://www.tektronix.com for the

latest revision of the user documentation. Select the Manuals link, then enter the

part number or product name to locate the document.

A printed version of this manual is also orderable (see Optional Accessories on

page 4).

Manual Structure

This manual is composed of the following chapters:

H Getting Started shows you how to configure and install your sampling

module.

H Operating Basics describes controlling the sampling module using the front

panel and the main instrument user interface.

H Reference provides additional information including the specifications;

detailed descriptions of all programming commands are found in the Online

Programmer Guide for your main instrument.

Related Documentation

This document covers installation and usage of the sampling module and its

features. For information about the main instrument in which the sampling

module is used, refer to the user documents and online help provided with your

main instrument.

Preface

viii

80E00 Electrical Sampling Modules User Manual

1

Getting Started

The Tektronix 80E01, 80E02, 80E03, 80E04, and 80E06 sampling modules are

high-performance sampling modules that can be installed in the following main

instruments:

H DSA8200 Digital Serial Analyzer

H CSA8000, CS A800B, and CSA8200 Communications Signal Analyzers

H TDS8000, TDS8000B, and TDS8200 Digital Sampling Oscilloscopes

Proper operation of the electrical sampling modules requires that the appropriate

application software is installed on the main instrument. In Table 1, each new

release of software supports the additional electrical modules as well as all

electrical modules supported by earlier software versions.

To display the version installed, select About from the Help menu of the main

instrument.

Table 1: Application software ver sion r equired

DSA8200 and TDS/

CSA8000 appli cati on

software version

Additional modules supported

1.0.0 or greater

1

80E01, 80E02, 80E03, 80E04

1.4.0 or greater

1

80E06

1

Product application software version 1.x.x requires the Windows 98 operating

system.

Getting Started

2

80E00 Electrical Sampling Modules User Manual

Product Description

The sampling modules provide the features shown in Table 2.

Table 2: Sampling module feat ures

Feature 80E01 80E02 80E03 80E04 80E06

Number of independent channels 1 2 2 2 1

Rise time 7 ps, typical

1

≤28 ps ≤17.5 ps ≤17.5 ps ≤5.0 ps, typical

1

Bandwidth 50 GHz 12.5 GHz 20 GHz 20 GHz 70 GHz, typical

Displayed noise

3

≤2.3 mV

RMS

≤800 V

RMS

≤1.2 mV

RMS

≤1.2 mV

RMS

≤2.8 mV

RMS

Select channel buttons for quick

trace identificat ion

Yes Yes Yes Yes Yes

Maximum non-destruct ive input

voltage

2 V (DC + peak

AC)

3 V (DC + peak

AC)

3 V (DC + peak

AC)

3 V (DC + peak

AC)

2 V (DC + peak

AC)

Vertical sensitivity, full scale 10mVto1V 10mVto1V 10mVto1V 10mVto1V 10mVto1V

Signal connectors

2

2.4 mm male to

2.92 mm (K)

female

3.5 mm female 3.5 mm female 3.5 mm female 2.4 mm male to

2.92 mm (K)

female

4

Number of TDR channels N.A. N.A. N.A. 2 N.A.

1

The 80E01 module risetime is estimated using the formula risetime = 0.35/bandwidth. The 80E06 module risetime is

estimated using the formula risetime = 0.35/(typical bandwidth).

2

3.5 m m female to 2.4 mm male adapter is provided.

3

Measured at 1 ps/div.

4

Because the 2.4 mm connector of this adapter will mechanical ly i nterface with the 1.85 mm connector of the 80E06, it

serves as a 1.85 mm-to-2.92 mm adapter for the 80E06 module.

As shown in Figure 1, the sampling modules have two independent channels

(80E01 and 80E06 each have one channel), each with its own acquisition

circuitry.

The strobe drive signal from the instrument controls the timing of the strobe

assertion to each acquisition system and guarantees sampling coincidence

between the channels in a sampling module.

CAUTION. To prevent electrostatic damage to the main instrument and sampling

modules, follow the precautions described in this manual and the manuals

accompanying your instrument. (See Electrostatic Discharge on page 6.)

Getting Started

80E00 Electrical Sampling Modules User Manual

3

Sampler

Strobe

Generator

Strobe drive

50 Ω

From main instrument

50 Ω

Note: the 80E01and 80E06 are

single channel modules with a

dedicated strobe drive and

generator.

To main instrument

Figure 1: Sam pling module block diagram

TDR on indicator

light (red)

(80E04)

Signal connector

Left channel

Right channel

Hold-down screw

SELECT channel button

TEKPROBE connector

Channel indicator

light (yellow)

Figure 2: Sam pling module, 80E04 shown

Getting Started

4

80E00 Electrical Sampling Modules User Manual

Options and Accessories

This section lists the standard and optional accessories available for the sampling

modules.

The following options can be ordered for the sampling modules:

H Option C3: Three years of calibration services

H Option C5: Five years of calibration services

H Option D3: Test Data for calibration services in Option C3

H Option D5: Test Data for calibration services in Option C5

H Option R3: Repair warranty extended to cover three years

H Option R5: Repair warranty extended to cover five years

The accessories in Table 3 are shipped with the sampling modules.

Table 3: Standard accessories

Item Part number

Certif icate of Traceable Calibration for product at initial shipment Not Orderable

2.4 mm male to 2.92 mm (K) female adapter (80E01 and 80E06 only)

1

015-0703-xx

SMA male 50 Ω termination (one per channel) 015-1022-xx

Transit case, ESD protective 004-5091-xx

Transit case, ESD protective (80E06 only) 004-5165-xx

1

Because the 2.4 mm connector of this adapter will mechanical ly i nterface with the

1.85 m m connector of the 80E06, it serves as a 1.85 m m-to-2.92 mm connector for

the 80E06 module

The accessories in Table 4 are orderable for use with the sampling module at the

time this manual w as originally published. Visit the Tektronix Web site or

consult a current catalog for additions, changes and details.

Table 4: Optional accessories

Item Part number

Sampling module ext ender cable (2 meter)

1

80N01

2X attenuator (SMA male-to-female) 015-1001-xx

5X attenuator (male-to-female) 015-1002-xx

Options

Standard Accessories

Optional A ccessories

Getting Started

80E00 Electrical Sampling Modules User Manual

5

Table 4: Optional accessories (cont.)

Item Part number

Power divider 015-0565-xx

SMA accessory kit 020-1693-xx

Torque wrench, 8 mm (5/16 inch) open end n.a.

3.5maleto3.5femaleSMA 015-0552-xx

Slip-on SM A connector 015-0553-xx

3.5 mm 50 Ω connector (SMA male-to-female) 015-0549-xx

BNC female 75 Ω to 50 Ω type N minimum loss attenuator 131-0112-xx

CSA8000 & TDS8000 Series Service Manual 071-0438-xx

DSA8200 Service Manual 071--2049--xx

Termi nator, ECL 015-0558-xx

Connector saver, 3.5 mm SMA 015-0549-xx

80E00 Electrical Sampling Module User Manual (printed) 071-0434-xx

1

An extender cable extends the reach of a sampling module. You install the extender

between the sampling module and the instrument, allowing you to operate the

sampling m odule out of the module compartment. If you compensate a module in

the main instrument and then move the module to an extender, or visa versa,

re-compensate the module (for more information see Compensation on page 9).

Getting Started

6

80E00 Electrical Sampling Modules User Manual

Installation

The sampling modules fit into the front panel of the main instrument. Figure 3

shows the front panel of a DSA8200 and the locations of the sampling-module

compartments.

Large modules

Small modules

Left-most small module

compartment is not usable if

a large module is installed

in left-most slot

Module ejectors

This small module

compartment is not usable if

a large module is installed

in right-most slot

Figure 3: Sam pling module compar tments

At least one sampling module must be installed in an instrument to sample

signals.

NOTE. Installing a large module in the left-most slot disables the left-most small

module compartment. Installing a large module in the right-most slot disables

the small module compartment that is second from the left.

Each instrument supports four large-compartment channels, two per sampling

module, and eight small-compartment channels, two per sampling module. Eight

of the ten channels are usable at one time.

To prevent electrostatic damage to the main instrument and sampling modules,

follow the precautions described in this manual and the manuals that come with

your instrument.

Circuitry in the sampling module is very susceptible to damage from electrostat-

ic discharge or from overdrive signals. Be sure to only operate the sampling

module in a static-controlled environment. Be sure to discharge to ground any

electrostatic charge that may be present on the center and outer connectors of

cables before attaching the cable to the sampling module.

Electrostatic Discharge

Getting Started

80E00 Electrical Sampling Modules User Manual

7

Know your signal source. If it is capable of delivering overvoltages, it is safer to

not depend on the signal source settings for protection, but instead use an

external attenuator that protects the input from the worst-case conditions. For

example, for a 20 V maximum source connected to a 3 V maximum sampling

module, use a 10X attenuator. Where possible, connect your cables to the signal

source first, and to the sampling module second.

CAUTION. To prevent damage from electrostatic discharge, install 50 Ω

terminations on the sampling-module connectors before removing a sampling

module from an instrument or when it is not in use. Store the sampling module in

a static-fr ee container, such as the shipping container. Whenever you move the

sampling module from one instrument to another, use a static-free container to

transport the sampling module.

To prevent damage to the sampling module, discharge to ground any electrostat-

ic charge that may be present on the center and outer conductors of cables

before attaching the cable to the sampling module.

To prevent damage to the sampling module, do not create an ESD antenna by

leaving cables attached to the sampling-module input with the other end of the

cable open.

To prevent damage to the sampling module or instrument, never install or

remove a sampling module when the instrument is powered-on.

Always use a wrist strap (provided with your instrument) when handling

sampling modules or making signal connections. Wear anti-static clothing and

work in a static-free workstation when using sampling modules.

Use a Tektronix 80A02 EOS/ESD Protection Module if doing TDR work.

To prevent damage to the sampling module or instrument, do not apply a voltage

outside the Maximum Input Voltage (see page 48) for your sampling module.

For information on creating a static-controlled workstation, consult the Electron-

ic Industries Association document EIA-625; Requirements for Handling

Electrostatic-Discharge-Sensitive (ESDS) Devices.

You can use a Tektronix 80A02 EOS/ESD Protection Module to protect the

sampling module from damage due to static discharge from circuit boards and

cables. Use the 80A02 in applications where large static charges can be stored on

the device under test, such as when testing TDR circuit boards or cables.

Refer to the documentation supplied with the 80A02 module for proper

installation and use.

Static Controlled

Workstation

Getting Started

8

80E00 Electrical Sampling Modules User Manual

To install a sampling module, first turn off the instrument using the front-panel

On/Standby switch. Then place the sampling module in a compartment and

slowly push it in with firm pressure. Once the sampling module is seated, turn

the hold-down screw on the sampling module to tighten the sampling module

into place. See Figure 4.

CAUTION. To prevent damage to the sampling module or instrument, never install

or remove a sampling module when the instrument is powered on or when either

input connector is unprotected.

NOTE. When removing your sampling module, first loosen the hold-down screw,

and then use the sampling module ejector on the main instrument to eject the

sampling module.

Small-compartment

ejectors

Electrical sampling module

Hold-down screw

Figure 4: Installing a sampling module

Module Installation

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