Tektronix DTG5274, DTG5078 Service Manual

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Service Manual

DTG5078 & DTG5274 Data Timing Generators

071-1285-00

This document supports firmware version 1.0.14 and above.

www.tektronix.com

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.

Tektronix Japan, Ltd. 5--9--31 Kitashinagawa, Shinagawa--ku, Tokyo 141 --0001 Japan

Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077--0001

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY

Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one (1) year 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 O F 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 NO TICE OF THE POSSIBILITY OF SUCH DAMAGES.

Specifications

List of Figures iv............................................

List of Tables viii.............................................

General Safety Summary xi...................................

Service Safety Summary

Preface xv...................................................

Manual Structure xv................................................

Manual Conventions xvi..............................................

Finding Other Information xvi.........................................

Contacting Tektronix xvii.............................................

Introduction xix..............................................

Performance Verification Procedures xix.................................

Strategy for Servicing xix.............................................

Tektronix Service Offerings xx........................................

Product Description 1--1........................................

Models 1--1........................................................

Key Features 1--1....................................................

Mainframe and Output Module Configuration 1--3.........................

Product Software 1--3................................................

Software Upgrade 1--4................................................

Specifications 1--5.............................................

Electrical Specification 1--6...........................................

Miscellaneous 1--35...................................................

xiii.......................................

Operating Basics

Installation 2--1...............................................

Supplying Operating Power 2--2........................................

Checking the Environment Requirements 2--4.............................

Output Module 2--5..................................................

Powering On the Data Timing Generator 2--6.............................

Setting up Windows 2000 2--7..........................................

Shutting Down the Data Timing Generator 2--8............................

Creating an E mergency Rescue Disk 2--10.................................

Backing Up User Files 2--12............................................

Installing Software 2--12...............................................

Operating Basics 2--13..........................................

Front Panel Controls 2--13..............................................

Front Panel Connectors 2--17...........................................

Rear Panel Connectors 2--19............................................

Peripherals on the Rear Panel 2--23.......................................

Display Area and Application Windows 2--24..............................

Using the Menu System 2--51...........................................

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table of Contents

Theory of Operation

Theory of Operation 3--1.......................................

Interconnect Diagrams 3--1............................................

Block Diagrams 3--6.................................................

Performance Verification

Performance Verification 4--1...................................

Conventions in this manual 4--1........................................

Self Tests 4-- 3.......................................................

Performance Tests 4--10................................................

Mainframe 4--15.....................................................

Output Module 4--62..................................................

Adjustment Procedures

Adjustment Procedures 5--1.....................................

Maintenance

Maintenance 6 --1..............................................

Related Maintenance Procedures 6--1....................................

Preparation 6--2.....................................................

Inspection and Cleaning 6--4...........................................

Removal and Installation Procedures 6--9.........................

Preparation for Use 6--9...............................................

Access Procedure 6--15................................................

Procedures for External Modules 6--16....................................

Procedures for Internal Modules (Lower) 6--31.............................

Procedures for Internal Modules (Upper) 6--38.............................

Troubleshooting 6--45...........................................

Troubleshooting tree 6 --45..............................................

Diagnostics 6-- 53.....................................................

System Recovery 6--69..........................................

Requirements for System Recovery 6--69..................................

Operating Procedure 6--69..............................................

Service Password 6--73..........................................

Set up into the Service mode 6--73.......................................

Serial number registration 6--73.........................................

Replaceable Electrical Parts

Electrical Parts List 7 --1........................................

Diagrams

Diagrams 8--1.................................................

Replaceable Mechanical Parts

Replaceable Mechanical Parts 9--1...............................

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table of Contents

Parts Or dering Information 9--1.........................................

Using the Replaceable Parts List 9--2....................................

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Table of Contents

List of Figures

Figure 1--1: DC Output channel assignment 1--8....................

Figure 1--2: Frequency response of clock output 1--10................

Figure 1--3: Signal timing 1--15...................................

Figure 1--4: DTG5078 Master-Slave connection 1--16.................

Figure 1--5: DTG5274 Master-Slave connection 1--17.................

Figure 1--6: Channel addition function 1--24........................

Figure 1--7: The definitions of Lead/Trail Delay and Pulse Width 1--25..

Figure 1--8: Maximum Lead Delay 1--25...........................

Figure 1--9: Output voltage window and clock out (DTGM30) 1--33....

Figure 1--10: Equivalent circuit of DTGM10 and DTGM20 outputs 1--34

Figure 1--11: Equivalent circuit of DTGM30 output 1--34.............

Figure 2--1: Principal power switch and AC power connector 2--6.....

Figure 2--2: On/Standby switch location 2--6.......................

Figure 2--3: Front panel controls 2--14.............................

Figure 2--4: Front panel connectors 2--17...........................

Figure 2--5: Rear panel connectors 2--19............................

Figure 2--6: Locations of peripheral connectors on rear panel 2--23.....

Figure 2--7: Screen elements just after t he power on 2--24.............

Figure 2--8: Toolbar 2--29........................................

Figure 2--9: Status bar 2--30......................................

Figure 2--10: Channel Group window 2--31.........................

Figure 2--11: Blocks window 2--32.................................

Figure 2--12: Data-Listing window 2--34............................

Figure 2--13: Data-Waveform window 2--36.........................

Figure 2--14: Level window 2--38..................................

Figure 2--15: Timing window (Data Generator mode) 2--40............

Figure 2--16: Time Base window 2--42..............................

Figure 2--17: Sequence window 2--44..............................

Figure 2--18: Subsequence window 2--46...........................

Figure 2--19: Jitter Generation window 2--48........................

Figure 2--20: DC O utput window 2--49.............................

Figure 2--21: Menu selection 2--51.................................

Figure 2--22: Window operation 1: Time Base window 2--52...........

Figure 2--23: Window operation 2: Timing window 2--53..............

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table of Contents

Figure 2--24: Window operation 3: Data-Listing window 2--54.........

Figure 2--25: Window operation 4: Channel Group window 2--56......

Figure 2--26: Window operation 5: Sequence window 2 --57............

Figure 3--1: DTG5078 interconnection diagram 3--4.................

Figure 3--2: DTG5274 interconnection diagram 3--5.................

Figure 3--3: DTG5078 block diagram 3--7.........................

Figure 3--4: DTG5274 block diagram 3--8.........................

Figure 4--1: Diagnostics dialog 4--4...............................

Figure 4--2: Level Calibration dialog 4--6..........................

Figure 4--3: Skew Calibration dialog 4 --8..........................

Figure 4--4: Skew Calibration results screen 4--9....................

Figure 4--5: Open Setup dialog 4--13...............................

Figure 4--6: Sync output tests 4--16................................

Figure 4--7: Internal Clock Frequency tests 4--18....................

Figure 4--8: External Clock Output tests 4--20.......................

Figure 4--9: External Clock Input tests 4--23........................

Figure 4--10: 10 MH z Reference Input tests 4--25....................

Figure 4--11: 10 MHz Reference Output tests 4--27...................

Figure 4--12: Phase Lock Input tests 4--28..........................

Figure 4--13: Internal Trigger tests 4--30...........................

Figure 4--14: Event Input and Sequence tests 4--34...................

Figure 4--15: Data pattern example 4--36...........................

Figure 4--16: Jitter Generation tests 4--38...........................

Figure 4--17: Jitter Generation exam ple (all) 4--39...................

Figure 4--18: Jitter Generation exam ple (partial) 4--41................

Figure 4--19: DC Output tests 4--42................................

Figure 4--20: Delay timing t ests 4--44..............................

Figure 4--21: Clock out random jitter tests 4--48.....................

Figure 4--22: Clock out random jitter sample 4 --49...................

Figure 4--23: Random jitter tests 4--50.............................

Figure 4--24: Random jitter waveform sam ple 4--52..................

Figure 4--25: Total jitter waveform sample 4--54.....................

Figure 4--26: PG Mode tests 4--55.................................

Figure 4--27: Master-Slave operation tests 4--58.....................

Figure 4--28: DTG5000 Configuration Utility dialog 4--59.............

Figure 4--29: Master-Slave operation waveform sample 4--60..........

Figure 4--30: Data output DC level tests 4--63.......................

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table of Contents

Figure 4--31: Data format tests 4--67...............................

Figure 4--32: Pulse pattern example 4--68...........................

Figure 4--33: RZ waveform example 4--69..........................

Figure 4--34: R1 waveform example 4--69...........................

Figure 6--1: Instrument orientation (DTG5078) 6--11................

Figure 6--2: External modules 6--12................................

Figure 6--3: Front Panel assem bly & Display assembly 6--13...........

Figure 6--4: Internal modules (Lower) 6--14.........................

Figure 6--5: Internal modules (Upper) 6 --14.........................

Figure 6--6: Output Module removal 6--17..........................

Figure 6--7: Modules on the rear panel 6--18........................

Figure 6--8: Loose the screws 6--18................................

Figure 6--9: CD--ROM module removal 6--19........................

Figure 6--10: Loose the screws 6--19...............................

Figure 6--11: Loose the screws 6--20...............................

Figure 6--12: Cabinet removal 6--21...............................

Figure 6--13: Remove the screws 6--22..............................

Figure 6--14: Front Panel assembly removal 6--23....................

Figure 6--15: Front Panel assembly removal 6--24....................

Figure 6--16: FD drive removal 6 --24...............................

Figure 6--17: Front panel chassis removal 6--25......................

Figure 6--18: A20 Front Key & DC Output board removal 6--26........

Figure 6--19: A22 Power Switch Board removal 6--27.................

Figure 6--20: Display assembly removal 6--28.......................

Figure 6--21: Inverter board removal 6--29.........................

Figure 6--22: Fan removal 6--30...................................

Figure 6--23: Support bracket removal 6--32........................

Figure 6--24: Unplug the cables and connectors 6--33.................

Figure 6--25: Unplug the cables and connectors 6--35.................

Figure 6--26: Unplug the cables and connectors 6--37.................

Figure 6--27: Power supply removal 6--39...........................

Figure 6--28: A10 Connector & PCI Interface board removal 6--40.....

Figure 6--29: A10 Connector & PCI Interface board removal 6--41.....

Figure 6--30: Compact PCI Frame removal 6--42....................

Figure 6--31: A30 Compact PCI Backplane removal 6--43.............

Figure 6--32: Primary troubleshooting procedure (1) 6--46............

Figure 6--33: Primary troubleshooting procedure (2) 6--47............

Figure 6--34: Primary troubleshooting procedure (3) 6--48............

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table of Contents

Figure 6--35: Troubleshooting procedur e B — Display section 6--48....

Figure 6--36: Troubleshooting procedur e A -- Power Supply

and A10 board section 6--49..........................

Figure 6--37: Test point on the A10 Connector board 6--50............

Figure 6--38: Diagnostics dialog box 6--54..........................

Figure 6--39: Diagnostics error code format 6--58....................

Figure 6--40: Service Password dialog box 6--73.....................

Figure 6--41: Set Serial Number dialog box 6--74....................

Figure 9--1: Main Chassis (1) (DTG5078) 9--5......................

Figure 9--2: Main Chassis (1) (DTG5274) 9--7......................

Figure 9--3: Main Chassis (2) 9--10................................

Figure 9--4: Main Chassis & Cabinet 9--11..........................

Figure 9--5: A30 & Com pact PCI Frame 9--13.......................

Figure 9--6: Power Supply 9--15...................................

Figure 9--7: Floppy Disk Drive 9--16...............................

Figure 9--8: A10 Connector & PCI Interface 9--17...................

Figure 9--9: A32 CDROM Extender 9--19...........................

Figure 9--10: Front Panel (DTG5078) 9--21.........................

Figure 9--11: Front Panel (DTG5274) 9--23.........................

Figure 9--12: Cabinet 9--25.......................................

Figure 9--13: Plug--In Box (DTG5078) 9--27.........................

Figure 9--14: Plug--In Box (DTG5274) 9--29.........................

Figure 9--15: Blank Plug--In 9--31.................................

Figure 9--16: DTGM10 9--33.....................................

Figure 9--17: DTGM20 9--35.....................................

Figure 9--18: DTGM30 9--37.....................................

Figure 9--19: Op 1R (Rack Mount) 9--38...........................

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Table of Contents

List of Tables

Table 1--1: DTG5000 series key features 1--2......................

Table 1--2: Operation mode 1--6................................

Table 1--3: Sequencer 1--6......................................

Table 1--4: Clock Generator 1--7................................

Table 1--5: Internal Trigger Generator 1--7.......................

Table 1--6: DC Output 1 --7.....................................

Table 1--7: Clock Out 1--8......................................

Table 1--8: External Clock In 1--10...............................

Table 1--9: 10 MHz Reference In 1--11............................

Table 1--10: 10 MHz Reference Out 1--11..........................

Table 1--11: Phase Lock In 1--11.................................

Table 1--12: Skew Cal In 1--12...................................

Table 1--13: Trigger In 1--12.....................................

Table 1--14: Sync Out 1--13.....................................

Table 1--15: Sync Clock In 1--13.................................

Table 1--16: Sync Clock Out 1, Out 2 and Out 3 1--13...............

Table 1--17: Sync Jump In 1--14.................................

Table 1--18: Sync Jump Out 1, Out 2 and Out 3 1--14...............

Table 1--19: Event In 1--17......................................

Table 1--20: CPU module and peripheral devices 1--18...............

Table 1--21: Display 1--19.......................................

Table 1--22: DG Mode 1--19.....................................

Table 1--23: Clock Range in NRZ 1--23............................

Table 1--24: Clock Range in RZ/R1 1--24..........................

Table 1--25: Delay Offset 1--24...................................

Table 1--26: Lead Delay 1--26....................................

Table 1--27: Trail Delay 1--26....................................

Table 1--28: Jitter Amplitude 1--27...............................

Table 1--29: PG Mode 1--28.....................................

Table 1--30: DTGM10 1--30.....................................

Table 1--31: DTGM20 1--31.....................................

Table 1--32: DTGM30 1--32.....................................

Table 1--33: Mechanical 1--35....................................

Table 1--34: Installation requirement 1--36.........................

Table 1--35: Environmental 1--36.................................

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Table of Contents

Table 1--36: Power Supply 1--37.................................

Table 1--37: Certifications and compliances 1--38...................

Table 1--38: Installation category and Pollution degree 1--39..........

Table 2--1: Power-cord conductor identification 2--2................

Table 2--2: Power cord identification 2--3.........................

Table 2--3: Operating requirem ents 2--4..........................

Table 2--4: Additional connection information 2--23.................

Table 2--5: Control box menus 2--24...............................

Table 2--6: File menus 2--25......................................

Table 2--7: View menus 2--25.....................................

Table 2--8: Settings menus 2--27..................................

Table 2--9: System menus 2--27...................................

Table 2--10: Options menu 2--28..................................

Table 2--11: Help menus 2--28....................................

Table 2--12: Status Bar 2--30.....................................

Table 2--13: Edit menus for Channel Group window 2--31............

Table 2--14: Setup items for Blocks window 2--33....................

Table 2--15: Edit menus for Blocks window 2--33....................

Table 2--16: Edit menus for Data-Listing window 2--35...............

Table 2--17: Edit menus for Data-Waveform window 2--36............

Table 2--18: Setup items for Level window 2--38.....................

Table 2--19: Edit menus for Level window 2--39.....................

Table 2--20: Setup items for Timing window 2--40...................

Table 2--21: Edit menus for Timing window 2--41...................

Table2--22:SetupitemsforTimeBasewindow 2--42................

Table 2--23: Setup items for Sequence window 2--44.................

Table 2--24: Edit menus for Sequence window 2--45.................

Table 2--25: Setup items for Subsequence window 2--46..............

Table 2--26: Edit menus for Subsequence window 2--47..............

Table 2--27: Setup items for Jitter Generation window 2--48..........

Table 2--28: Setup items for DC Output window 2--49................

Table 2--29: Edit menus for DC output window 2--50................

Table 2--30: Key operations 2--61.................................

Table 4--1: Performance test items 4--10...........................

Table 4--2: Test equipment 4--11..................................

Table 4--3: Performance check files 4--14...........................

Table 4--4: DTGM10 High Level Voltage Accuracy 4--64.............

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table of Contents

Table 4--5: DTGM10 Low Level Voltage Accuracy 4--64..............

Table 4--6: DTGM20 High Level Voltage Accuracy 4--64.............

Table 4--7: DTGM20 Low Level Voltage Accuracy 4--65..............

Table 4--8: DTGM30 High Level Voltage Accuracy 4--66.............

Table 4--9: DTGM30 Low Level Voltage Accuracy 4--66..............

Table 6--1: Relative susceptibility to static-discharge damage 6--3.....

Table 6--2: External inspection check list 6--5......................

Table 6--3: Internal inspection check list 6--6......................

Table 6--4: Tools requir ed for module removal 6--10.................

Table 6--5: Performance Test 6--51................................

Table 6--6: Diagnostics dialog box buttons 6--54.....................

Table 6--7: Information on Status 6--57............................

Table 6--8: Category of the Diagnostics Error Code 6--59.............

Table 6--9: Error Codes 6--60....................................

DTG5078 & DTG5274 Data Timing Generator Service 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 this product only as specified.

Only qualified personnel should perform service procedures.

To Avoid Fire or

Personal Injury

Use Proper Power Cord. Use only the power cord specified for this product and certified for the country of use.

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.

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.

The common terminal is at ground potential. Do not connect the common terminal to elevated voltages.

Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.

Do Not Operate 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.

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

Do Not Operate in Wet/Damp Conditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Provide Proper Ventilation. Refer to the manual’s installation instructions for

details on installing the product so it has proper ventilation.

DTG5078 & DTG5274 Data Timing Generator Service Manual

General Safety Summary

Symbols and Terms

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 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:

WARNING

High Voltage

Protective Ground

(Earth) Terminal

CAUTION

Refer to Manual

Double

Insulated

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Service Safety Summary

DTG5000 SeriesOnly qualified personnel should perform service procedures. Read this Service Safety Summary and the General Safety Summary before performing any service procedures.

Do Not Service Alone. Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present.

Disconnect Power. To avoid electric shock, disconnect the mains power by means of the power cord or, if provided, the power switch.

Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components.

To avoid electric shock, do not touch exposed connections.

Calendar (date and time) Backup Battery. This product contains a Lithium:polycarbon monofluoride battery for calendar backup purposes. This battery is part of the CPU unit and is not replaceable.

DTG5078 & DTG5274 Data Timing Generator Service Manual

xiii

Service Safety Summary

xiv

DTG5078 & DTG5274 Data Timing Generator Service Manual

Preface

Manual Structure

This manual provides information necessary for service technicians to service the DTG5000 Series Data Timing Generator to the module level.

This manual is divided into sections, such as Specifications and Theory of

Operation. Further, some sections are divided into subsections, such as Product Description and Removal and Installation Procedures.

Sections containing procedures also contain introductions to those procedures. Be sure to read these introductions because they provide information needed to do the service correctly and efficiently. The following contains a brief description of each manual section.

H Specifications contains a description of the data timing generator and the

characteristics t hat apply to it.

H Operating Information includes general information and operating

instructions.

H Theory of Operation contains circuit descriptions that support service to the

module level.

H Performance Verification contains procedures for confirming that the data

timing generator functions properly and meets warranted limits.

H Adjustment Procedures contains information that you need to manually

adjust the data timing generator so that it meets specifications.

H Maintenance contains information and procedures for performing preventive

and corrective maintenance of the data timing generator. These instructions include cleaning, module removal and installation, and fault isolation to the module.

H Replaceable Electrical Parts contains a statement referring you to Replace-

able Mechanical Parts, where both electrical and mechanical modules are

listed.

H Diagrams contains block diagrams and an interconnection diagram.

H Replaceable Mechanical Parts includes a table of all replaceable modules,

their descriptions, and their Tektronix part numbers.

DTG5078 & DTG5274 Data Timing Generator Service Manual

Preface

Manual Conventions

This manual uses certain conventions that you should become familiar with.

Some sections of the manual contain procedures for you to perform. To keep those instructions clear and consistent, this manual uses the following conventions:

H Name of front panel controls and menus appears in the same case (initial

capitals, all uppercase, and so on) in the manual as is used on the data timing generator front--panel and menus. Front --panel names are all upper case letters (for example, MENU, SELECT, PULSE GEN, and so on).

H Instruction steps are numbered unless there is only one step.

Modules

Safety

Throughout this manual, any replaceable component, assembly, or part of the data timing generator is referred to generically as a module. In general, a module is an assembly (like a circuit board), rather than a component (like a resistor or an integrated circuit). Someti mes a single component is a module; for example, the chassis of the data timing generator is a module.

Symbols and terms related to safety appear in the Safety Summary near the beginning of this manual.

Finding Other Information

This manual mainly focuses on the performance verification, troubleshooting and maintenance of the data timing generator. See the following list for other documents supporting the data timing generator operation.

Document name Description

DTG5000 Series Online Help An online help system, integrated with the User Interface application that ships with this

product. The help is preinstalled in the instrument.

DTG5000 Series User Manual, volume 1 A quick reference to major features of the instrument and how they operate. It also

provides several tutorials to familiarize the user with basic instrument features.

DTG5000 Series User Manual, volume 2 A comprehensive usage information on how to operate the instrument including the

descriptions of functions and menu operations.

DTG5000 Series Programmer Manual Provides complete information on programming commands and remote control of the

instrument.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Contacting Tektronix

Preface

Phone 1-800-833-9200*

Address Tektronix, Inc.

Department or name (if known) 14200 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA

Web site www.tektronix.com

Sales support 1-800-833-9200, select option 1*

Service support 1-800-833-9200, select option 2*

Technical support Email: techsupport@tektronix.com

1-800-833-9200, select option 3*

6:00 a.m. -- 5:00 p.m. Pacific time

* This phone number is toll free in North America. After office hours, please leave a

voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices.

DTG5078 & DTG5274 Data Timing Generator Service Manual

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Preface

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Introduction

This manual contains information that is needed to properly service the DTG5000 Series Data Timing Generator as well as general information that is critical to safe and effective servicing.

To prevent personal injury or damage to the data timing generator, consider the following before attempting service:

H The procedures in this manual should be performed only by a qualified

service person.

H Read the General Safety Summary on page xi and the Service Safety

Summary, beginning on page xiii.

H Read Installation in Operating Information.

When using this manual for servicing, be sure to follow all warnings, cautions, and notes.

Performance Verification Procedures

Strategy for Servicing

The performance check described in the Performance Verification section should be done every 12 months. In addition, a performance check is recommended after module replacement.

If the data timing generator does not meet performance criteria, repair is necessary.

Throughout this manual, the term, module, refers to any field-replaceable component, assembly, or part of the data timing generator.

This manual contains all the information needed for periodic maintenance of the data timing generator. Further, it contains all information for corrective maintenance down to the module level. To isolate a failure to a module, use the troubleshooting procedures found in the Maintenance section. To remove and replace any failed module, follow the instructions in the Removal and Installa- tion Procedures subsection. After isolating a faulty module, replace it with a fully-tested module obtained from the factory. The Replaceable Mechanical Parts section contains part number and ordering information for all replaceable modules.

DTG5078 & DTG5274 Data Timing Generator Service Manual

xix

Introduction

Tektronix Service Offerings

Tektronix provides service to cover repair under warranty as well as other services that may provide a cost-effective answer to your service needs.

Whether providing warranty repair service or any of the other services listed below, Tektronix service technicians are well trained to service the data timing generator. They have access to the latest information on improvements to the DTG5000 Series as well as new options.

Warranty Repair Service

Self Service

Tektronix warrants this product for one year from date of purchase. The warranty appears at the front of this manual. Tektronix technicians provide warranty service at most Tektronix service locations. The Tektronix product catalog lists all worldwide service locations.

Tektronix supports repair to the module level by providing Module Exchange.

Module Exchange. This service reduces down-time for repair by allowing you to exchange most modules for remanufactured ones. Each module comes with a 90-day service warranty.

For More Information. Contact your local Tektronix service center or sales engineer for more information on any of the repair or adjustment services just described.

DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--1

Product Description

This section describes the DTG5000 Series Data Timing Generators and their options. Following this description are two subsections:

H Installation shows you how to configure and install the data timing

generator, as well as how to reinstall the system software included with the product.

H Accessories & Options lists the standard and optional accessories for this

product.

Models

This manual supports the following data timing generators:

H DTG5078 Data Timing Generator

H DTG5274 Data Timing Generator

The differences between the data timing generators will be called out when necessary; otherwise, the material applies to all data timing generators. The word “data timing generator” and “DTG5000 Series” refer to both products.

Key Features

The DTG5000 Series Data Timing Generator is a high speed/multichannel signal generator which creates a wide range of digital timing signals. The products are designed to generate a data pattern for standard and nonstandard pulses necessary for functional tests or characterization of legacy devices (TTL, CMOS, ECL) as well as the latest devices (PECL, LVDS, GTL, CML).

The DTG5000 Series Data Timing Generator supports three types of output modules (DTGM10, DTGM20, and DTGM30). Table 1--1 lists the key features of the data timing generators.

DTG5078 & DTG5274 Data Timing Generator Service Manual

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Product Description

Table 1--1: DTG5000 series key features

DTG5078 DTG5274

Maximum clock frequency/

750 MHz/750 Mb/s 2.7GHz /2.7 Gb/s

Maximum data rate

Number of slots 8 (A, B, C, D, E, F, G, and H) 4 (A, B, C, and D)

Pattern length 240 to 8,000,000 words/channel 960 to 32,000,000 words/channel

Block size granularity 1 1 to 4 (depends on Vector Rate)

Sequence steps 1 to 8,000 steps 1 to 8,000 steps

Sequence repeat counter 1 to 65,536 or Infinite 1 to 65,536 or Infinite

Data Generator Mode

Slot A, B, C, D, E, F, G, and H Slot A, B, C, and D

Data format Slot A to D NRZ, RZ, and R1 Slot A to D NRZ, RZ, and R1

Slot E to H NRZ

Data rate NRZ 50 kb/s to 750 Mb/s NRZ 50 kb/s to 2.7 Gb/s

RZ and R1 50 kb/s to 375 Mb/s RZ and R1 50 kb/s to 1.35 Gb/s

Channel addition Slot A, B, C, and D Slot A, B, C, and D

Jitter generation Channel 1 of slot A Channel 1 of slot A

Lead delay resolution 1ps 0.2 ps

Trail delay resolution 5ps 5ps

Pulse width resolution 5 ps (slot A, B, C, and D) 5 ps (slot A, B, C, and D)

Pulse Generator Mode

Slot A, B, C, and D Slot A, B, C, and D

Clock frequency 50 kHz to 375 MHz 50kHzto1.35GHz

Output Module

Number of channel 4 4 2 2of4

Amplitude (50 Ω) 3.5 V

Amplitude (1 MΩ) 10 V

Rise time/fall time at 1 Vp-p into 50 Ω (20% to 80%)

DTGM10 DTGM20 DTGM 30 DTGM10 DTGM20 DTGM 30

2of4

p-p

<540 ps (variable)

(CH1, CH2)

3.5 V

p-p

<340 ps

1.25 V

p-p

2.5 V

p-p

<110 ps <540 ps

(variable)

3.5 V

p-p

10 V

p-p

(variable)

(CH1, CH2)

3.5 V

p-p

<340 ps (variable)

Master-Slave Up to three (one Master, two Slaves) Up to two (one Master, one Slave)

1.25 V

p-p

2.5 V

p-p

<110 ps

This value is limited by the maximum output current (+/-- 40 mA, maximum).

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Mainframe and Output Module Configuration

The DTG5000 Series Data Timing Generator offers card modular system. Three types of the output modules can be combined in any combination. Each module can be inserted into any slot. The functional restrictions are:

H 8 (eight) slots installed in the DTG5078 (A, B, C, D, E, F, G, and H)

H 4 (four) slots installed in the DTG5274 (A, B, C, and D)

H When the DTGM10 or DTGM20 is installed to the DTG5274, CH3 and

CH4 are not available. Only CH1 and CH2 can be used.

H Slot E, F, G, and H are not available in the Pulse Generator mode.

H Available data formats are different:

H NRZ, RZ, R1 (Slot A, B, C, and D)

H NRZ (Slot E, F, G, and H)

Product Description

Product Software

The data timing generator includes the following software:

H The system software, which includes a specially configured version of

Windows 2000, comes preinstalled on the data timing generator. Windows 2000 is the operating system on which the user-interface application of this product runs, and provides an open desktop for you to install other compatible applications.

NOTE. Do not attempt to substitute any version of Windows that is not specifically provided by Tektronix for use with this instrument.

H The DTG5000 Software comes preinstalled on the data timing generator.

This software runs on Windows 2000 Operating System is the data timing generator application. This software starts automatically when the data timing generator is powered on, and provides the user interface (UI) and all other instrument control functions. You can also minimize the data timing generator application.

H The product software runs not only on the data timing generator

mainframe, but also on the general PC. When the software runs on the data timing generator mainframe, it is called Online mode. When it runs on the PC, it is called Offline mode. In the Offline mode, it is possible to create and edit the pattern data and set the output parameters.

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Product Description

H The DTG5000 Configuration Utility comes preinstalled on the data timing

generator. This software, which runs on a Windows 2000 Operating System, is used for setting up the system configurations for the DTG5000 Software. This software controls the Master operation, Master--Slave operation, Online/Offline operation, and so forth.

NOTE. When you use the DTG5000 software with the offline mode, you must also install t he DTG5000 Configuration Utility on your PC.

H The Readme file contains release notes and updates that could not be

included in other product documentation.

H There are no limits on number of PCs that can operate in the offline mode.

Occasionally new versions of software for your instrument may become available at our web site. See Contacting Tektronix on page xvii in the Preface section for web site information.

Software Upgrade

Tektronix may offer software upgrade kits for the data timing generator. Contact your Tektronix service representative for more information (see Contacting Tektronix on page xvii).

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

This section contains the DTG5000 Series Data Timing Generator specifications. All specifications are guaranteed unless labeled “typical”. Typical specifications are provided for your convenience but are not guaranteed.

Performance Conditions

Specifications that are check marked with the indirectly) in the Performance Verification chapter of this manual.

The performance limits in this specification are valid with these conditions:

H The instrument must have been calibrated/adjusted at an ambient tempera-

ture between +20

H The instrument must be in an environment with temperature, altitude,

humidity, and vibration within the operating limits described in these specifications.

H The instrument must have had a warm-up period of at least 20 minutes.

H The instrument must be operating at an ambient temperature between +10

and +40

Cand+30_C.

symbol are checked directly (or

DTG5078 & DTG5274 Data Timing Generator Service Manual

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Specifications

Electrical Specification

Mainframe

Table 1--2: Operation mode

Characteristics Description

Data Generator Mode (DG Mode)

Pulse Generator Mode (PG Mode)

Operates as a data generator. The output data is created by a built--in pattern editor, or by importing files that have created by external simulation software tools. The output timing is defined by sample clock rate.

Note: Jump is not available if Long Delay is set to On.

Operates as a pulse generator. The output timing is defined by signal output frequency.

-- Timing control: Delay, Slew rate, Width

-- Level control: High/Low or Amplitude/Offset

-- Supports flexible block branching sequence function.

-- Timing control: Pulse width, Delay, Duty, Slew rate

-- Level control: High/Low or Amplitude/Offset

Table 1--3: Sequencer

Characteristics Description

Pattern Length

DTG5078

Hardware Sequence 240 to 8,000,000 words Software Sequence 1 to 8,000,000 words

DTG5274

Hardware Sequence 960 to 32,000,000 words Software Sequence 1 to 32,000,000 words

Pattern Length Granularity

DTG5078

Hardware Sequence 1word Software Sequence 1word

DTG5274

Hardware Sequence Depends on vector rate. Refer to Table 1--23 and Table 1--24.

Software Sequence 1word Sequence Length 1 to 8000 steps Maximum Blocks 8000 Maximum sub-sequences 50 Sub-sequence Length 1 to 256 steps Sequence Repeat Counter 1 to 65,536 or Infinite, All channels operate the same sequence.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

Table 1--4: Clock Generator

Characteristics Description PV reference page

Clock Frequency

DTG5078 50 kHz to 750 MHz

DTG5274 50kHzto3.35GHz Resolution 8 digits Internal clock

n Accuracy

The internal reference oscillator is used.

within 1 ppm Page 4--18

Table 1--5: Internal Trigger Generator

Characteristics Description

Internal trigger rate

Range 1.0 s to 10.0 s

Resolution 3 digits, minimum 0.1 s

The internal reference oscillator is used.

Table 1--6: DC Output

Characteristics Description PV reference page

Connector 2.54 mm 2 x 8 pin header (female), front right side Number of Channel 8 Source Resistance approximately 1 Ω Level

Voltage Range --3.0 V to 5.0 V

Control Independent

Resolution 10 mV

nDC Accuracy

Maximum Output Current Pin Assignment Refer to Figure 1--1.

(3% of the set value)50 mV Page 4--42 30 mA

DTG5078 & DTG5274 Data Timing Generator Service Manual

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Specifications

CH0 GND

CH1 GND

CH2 GND

CH3 GND

CH4 GND

CH5 GND

CH6 GND

CH7 GND

Figure 1--1: DC Output channel assignment

Table 1--7: Clock Out

Characteristics Description PV reference page

Output connector SMA rear Output Signal Type Complementary Frequency

DTG5078 50 kHz to 750 MHz

DTG5274 50kHzto3.35GHz Impedance 50 Ω Output Voltage Level

Range

High Level (VOH)

Low Level (VOL)

Output Voltage Amplitude

Range 30 mV

Resolution 10 mV Output Voltage Frequency Response

-- 1.00 V to 2.47 V into 50 Ω to GND

-- 1.94 V to 7.00 V into 1 MΩ to GND

-- 2.00 V to 2.44 V into 50 Ω to GND

-- 2.00 V to 6.94 V into 1 MΩ to GND

to 1.25V

p-p

60 mV

10 dB of value shown in the curve of Figure 1--2.

p-p

to 2.5V

into 50 Ω to GND

p-p

into 1 MΩ to GND

p-p

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

Table 1--7: Clock Out (cont.)

Characteristics PV reference pageDescription

Output Voltage Offset

Resolution 40 mV Range Depends on the limit of VOH and VOL set by the user.

Refer to Output Voltage Level.

Offset = (VOH + VOL) /2 Maximum Output Current nRise /Fall Time (20% to 80%), typical

DTG5078

at 100 mV

amplitude,

p-p

0 V offset

at 1.00 V

amplitude,

p-p

0 V offset

DTG5274

at 100 mV

amplitude,

p-p

0 V offset

at 1.00 V

amplitude,

p-p

0 V offset

nAberration, typical

Positive Overshoot Negative Overshoot

nRandom Jitter, typical

DTG5078 DTG5274

VoH and VoL cannot be set directly. they are calculated by the DTG5000 as a function of the amplitude and offset level. There is no menu to set the VoH or VoL directly. Refer to Figure 1--11 on page 1--34.

High level (VoH) should fulfill the following formulas.

=TermR,Vtt=TermV

VOH VOH VOH VOH VOH

7.00

(7.00 x RL + 50 x Vtt) / (RL + 50)

RL / 50 x (2.5 -- 0.06 x RL / (RL + 50)) + Vtt

(--2.00 x RL + 50 x Vtt) / (RL + 50)

Vtt -- RL / 50

80 mA

<85 ps into 50 Ω to GND

<100 ps into 50 Ω to GND

<70 ps into 50 Ω to GND

<80 ps into 50 Ω to GND

<10 % at 1V

into 50 Ω Page 4--20

p-p

into 50 Ω

p-p

Measured by RMS jitter in Measurement function of CSA8000 + 80E03.

<2 ps rms, at 750 Mb/s, amplitude = 0.8 V

<2 ps rms, at 2.7 Gb/s, amplitude = 0.8 V

p-p

Page 4--20

Page 4--47

Low level (VoL) should fulfill the following formulas.

=TermR,Vtt=TermV

VOL VOL VOL

--2.00

(50 x Vtt -- 4.5 x RL) / (RL + 50)

Vtt -- RL (0.02 + 2.5 / (RL + 50))

VOL < ((2.5 -- 0.06) x RL / 50) + Vtt

DTG5078 & DTG5274 Data Timing Generator Service Manual

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Specifications

Amplitude should fulfill the following formulas. Amplitude = VOH -- VOL

=TermR,Vtt=TermV

VOH -- VOL > 2 x (Vtt -- RL/50 -- Offset) VOH -- VOL > 2 x ((RL x (--2) + 50 x Vtt) / (RL + 50) -- Offset) VOH -- VOL < 2 x ((2.5 x RL -- 50 x Offset + 50 x Vtt) / (2 x RL + 50)) VOH -- VOL < 2 x ((7 x RL -- 50 x Vtt) / (RL + 50) -- Offset)

(1) at 0.5 Vp--p

(2) at 1.0 Vp--p

Figure 1--2: Frequency response of clock output

Table 1--8: External Clock In

Characteristics Description

Connector SMA rear Impedance 50 Ω, AC coupled Required Input Voltage Swing 400 mV Required Duty Cycle 50 5%

p-p

to 2 V

into 50 Ω

p-p

1--10

DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

Table 1--8: External Clock In (cont.)

Characteristics Description

Frequency Range Slew rate should be m ore than 10 mV/ns.

DTG5078 1 MHz to 750 MHz DTG5274 1 MHz to 2.7 GHz

Table 1--9: 10 MHz Reference In

Characteristics Description PV reference page

Connector BNC rear Impedance 50 Ω, AC coupled, Required Input Voltage Swing 200 mV nFrequency Range

10 MHz0.1 MHz Page 4 --25

p-p

to 3 V

p-p

Table 1--10: 10 MHz Reference Out

Characteristics Description PV reference page

Connector BNC rear Impedance 50 Ω, AC coupled nAmplitude, typical

1.2 V

2.4 V

into 50 Ω to GND

p-p

into 1 MΩ to GND

p-p

Page 4--26

Table 1--11: Phase Lock In

Characteristics Description PV reference page

Connector BNC rear Impedance 50 Ω, AC coupled Required Input Voltage Swing 200 mV nFrequency Range Multiplier Rate

1 MHz to 200 MHz Page 4--28

Long Delay, Off

NRZ x N, The maximum value of N is limited by the m aximum data rate. RZ and R1 x N/2, The maximum value of N is limited by the maximum data rate.

Long Delay, On x N / (vector rate)

N is an arbitrary integer.

p-p

to 3 V

p-p

DTG5078 & DTG5274 Data Timing Generator Service Manual

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Specifications

Table 1--12: Skew Cal In

Characteristics Description

Connector

SMA front Input Signal Type Single end Level ECLinto50Ω to --2 V

This input is used only in calibrating a skew between channels. Refer to the reference manual for details.

Table 1--13: Trigger In

Characteristics Description

Connector BNC front Impedance 1kΩ or 50 Ω Slope Positive or Negative Input Voltage Range -- 1 0 V t o 1 0 V, 1 k Ω selected

--5Vto5V,50Ω selected

Threshold

Level -- 5.0 V to 5.0 V Resolution 0.1 V

Required Minimum Input Swing 1.0 V

Required Minimum Pulse Width (Pw1) 20 ns, refer to Figure 1--3. Maximum Delay Time to Data Out (Td1) Refer to Figure 1--3.

DTG5078 47 H/W Clocks + 5 VCO (Ext) Clocks + 50 ns DTG5274 201 H/W Clocks + 5 VCO (Ext) Clocks + 50 ns

Trigger Holdoff Time (Td 3) Refer to Figure 1--3.

DTG5078 29 H/W Clocks + 500 ns DTG5274 115 H/W Clocks + 500 ns

0.5 V

p-p

,1kΩ selected ,50Ω selected

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Table 1--14: Sync Out

Specifications

Characteristics Description

Connector SMA front Output Signal Type Single end nLevel, typical

CML (Current Mode Logic) VOH 0Vinto50Ω to GND Page 4--15 VOL --0.4 V into 50 Ω to GND

Pulse Width (Pw 2) Refer to Figure 1--3.

DTG5078 4 Clocks DTG5274 4 Clocks

Delay Time to Data Out (Td2), typical -- 4.5 ns, refer to Figure 1--3. Rise/Fall Time (20 to 80%)

DG Mode: A positive pulse is generated at the beginning of each block.

<140 ps

PG Mode: A positive pulse is generated on each trigger if the Run Mode is set to Burst.

Sync Out is not available if the Run Mode is set to Continuous.

Table 1--15: Sync Clock In

Characteristics Description

Connector SMA rear Output Signal Type Complementary

This signal is used for only Master-Slave operation with another DTG5000 series instrument. Refer to the user manual vol.2 for details. The cable connection in Master-Slave operation in units is shown in Figure 1--4 and Figure 1--5.

PV reference page

Table 1--16: Sync Clock Out 1, Out 2 and Out 3

Characteristics Description

Connector SMA rear Output Signal Type Complementary

This signal is used for only Master-Slave operation with another DTG5000 series instrument. Refer to the user manual vol2. for details. Sync Clock Out 3 is available only in DTG5078. The cable connection in Master-Slave operation in units is shown in Figure 1--4 and Figure 1--5.

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--13

Specifications

Table 1--17: Sync Jump In

Characteristics Description

Connector BNC rear

Table 1--18: Sync Jump Out 1, O ut 2 and Out 3

Characteristics Description

Connector BNC rear

This signal is used for only Master-Slave operation with another DTG5000 series instrument. Refer to the user manual vol.2 for details. Sync Jump Out 3 is equipped only with DTG5078. The cable connection in Master-Slave operation in units is shown in Figure 1--4 and Figure 1--5.

1--14

DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

Trigger Trigger Start

:«:É:À::::É

:: : :w:«:É:À::::É:w: :¯

Ext Trigger in

::: :::w::Ì :

Clock Out

Data Out

:::::w::Ì:

:::¯::w::Ì:Ë:w::Ì:acc3acb

Sync Out

:«:É:À:: : :É:w: : ::É:

::::::::::::::: ::::::::::::::8:::::::::::::8::::::::::::8:::::::::8::::::8::::8:::8::8

:§: ::8

Pw1

:8

:«:»:

Td1

:«:»:

Td2

:§: ::9

Pw2

Stop Trigger Start

:«:É:À: : : :É:w: : : :É:::: :

:: :

Trigger Holdoff

:«:É:À::::É:w:: ::»:w:::

:«:»:

Td3

Event

Ext Event In

Data Out

Sync Jump Out

Block_1 Block_2 Block_3

:«:»:

:§: ::b

Td6

Pw4

Pw3

:§: ::a

: : ::¯::w::Å:Ç:Ì :Ë:w::¯: :Ì:ac73acc3ac

Event Input

: :À:¯:À::Ì::w:§ :Ì::::w: :À:»::¿

Minimum Pulse Width

Delay Time to Data Out

::::::w:«:À:::w:: :w:::::w::Ì:

:«:»:

Td4

Event Holdoff

:: ::¯::w:: ::»:w:::

:«:»:

Td5

::: :::¶:

Figure 1--3: Signal timing

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--15

Specifications

Master Unit

Sync Clock

Sync Jump

Out1 Out1 Out2 Out2

Out3 Out3

Out1 Out2 Out3

DTG5078DTG5078

Slave Unit

In In

In Out1 Out1 Out2 Out2

Out3 Out3

In Out1

Out2 Out3

Sync Clock

Sync Jump

Local Ethernet Network

BNC Cable

SMACable

LAN Cable

LAN

(012--0076--00)

(174--1427--00)

LAN

In Out1 Out1 Out2 Out2

Out3 Out3

In Out1 Out2 Out3

LAN

DTG5078

Slave Unit

Sync Clock

Sync Jump

1--16

Figure 1--4: DTG5078 Master-Slave connection

DTG5078 & DTG5274 Data Timing Generator Service Manual

DTG5274 DTG5274 Master Unit

Sync Clock

In In

Out1

Out1 Out2

Out2

In In

Out1

Out1 Out2

Out2

Slave Unit

Sync Clock

Specifications

Sync Jump

Out1 Out2

LAN

Local Ethernet Network

BNC Cable

SMA Cabl e

LAN Cable

Figure 1--5: DTG5274 Master-Slave connection

In Out1 Out2

LAN

(012--0076--00)

(174--1427--00)

Sync Jump

Table 1--19: Event In

Characteristics Description

Connector BNC front Impedance 1kΩ or 50 Ω Polarity Normal or Invert Input Voltage Range -- 1 0 V t o 1 0 V , 1 k Ω selected

--5Vto5V,50Ω selected

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--17

Specifications

Table 1--19: Event In (cont.)

Characteristics Description

Threshold

Level -- 5.0 V to 5.0 V Resolution 0.1 V

Required Minimum Input Swing 1.0 V

Required Minimum Pulse Width

DTG5078 32 H/W Clocks + 10 ns DTG5274 128 H/W Clocks + 10 ns

Maximum Delay Time to Data Output (Td4)

DTG5078 402 H/W Clocks DTG5274 1621 H/W Clocks

Event Holdoff Time (Td5) at Asynchronous Jump Mode, refer to Figure 1--3.

DTG5078 320 H/W Clocks DTG5274 1280 H/W Clocks

,1kΩ selected

p-p

0.5 V

,50Ω selected

p-p

at Asynchronous Jump Mode, refer to Figure 1--3.

Table 1--20: CPU module and peripheral devices

Characteristics Description

CPU Celeron 566 MHz Core Chip Intel 815E (815GMCH + ICH12) DRAM 128 MB SDRAM Storage

Hard Disk

USB USB 1.1

Ethernet 10BASE--T, 100BASE--TX, rear Video Output

Connector 15 pin Dsub, rear Format VGA (640 X 480), SVGA (800 X 600), XGA (1024 X 768),

GPIB 24 pin, IEEE488.2, rear Drive Floppy disk 1.44 MB, front

Keyboard Connector PS/2 type connector (6-pin mini-DIN), rear Mouse Connector PS/2 type connector (6-pin mini-DIN), rear

≥20 GB, User usable area is about 90 %

Series A 2ch Receptacle, rear Series A 1ch Receptacle, front right side

SXGA (1280 X 1024), UXGA (1600 X 1200)

CD-ROM, rear

1--18

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table 1--20: CPU module and peripheral devices (cont.)

Characteristics Description

Serial Port RS232C, 9 pin Dsub, rear Physical Specifications Comply with IEEE1101.10

233.4 mm ( W) x 160 mm (D) x 40 mm (H)

Real Time Clock

Lifetime >5 years Type Coin type lithium battery, CR2032 (Li 3 V 220 mAh)

Table 1--21: Display

Characteristics Description

Display Area Horizontal: 170.4 m m (6.71 in)

Vertical: 127.8 mm (5.03 in)

Resolution

800 (H) × 600 (V) pixels (SVGA)

Specifications

Output Pattern

Table 1--22: DG Mode

Characteristics Description PV reference page

Data Format

Slot A to D NRZ, RZ, R1 Slot E to H NRZ

Data Rate

DTG5078

NRZ only 50 kb/s to 750 Mb/s with RZ/R1 50 kb/s to 375 Mb/s

DTG5274

NRZ only 50 kb/s to 2.7 Gb/s with RZ/R1 50 kb/s to 1.35 Gb/s

Data Rate Resolution

Internal Clock 8 digits External Clock 4 digits External Phase Lock In 4 digits

Clock Range Refer to Table 1--23 and Table 1--24.

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--19

Specifications

Table 1--22: DG Mode (cont.)

Characteristics PV reference pageDescription

Channel Addition Slot E, F, G and H are not available in DTG5078.

Refer to Figure 1--6 on page 1--24.

Slot A, B, C and D Function AND or XOR

Delay Offset

Range Refer to Table 1--25. Resolution

DTG5078 1ps DTG5274 0.2 ps

Lead Delay Refer to Figure 1--7 for definition and Figure 1--8 for maximum lead delay.

Range Refer to Table 1--26. Resolution

DTG5078 1ps DTG5274 0.2 ps

nAccuracy

DTG5078

DTG5274

Trail Delay Refer to Figure 1 --7 for definition, available in RZ/R1.

Slot A, B, C and D Range Refer to Table 1--27. Resolution 5ps nAccuracy

Duty Cycle Refer to Figure 1--7 for definition, available in RZ/R1.

Slot A, B, C and D Range (Trail Delay -- Lead Delay) / Period x 100 Resolution 0.1%

Pulse Width Refer to Figure 1--7 for definition, available in RZ/R1.

Slot A, B, C and D Range Duty x Period / 100 or Trail Delay -- Lead Delay Resolution 5ps

The timing reference is the lead edge which lead delay of each channel set to 0 ns. Skew calibration includes temperature calibration.

100 ps, after skew calibration at + 20_Cto+30_C ambient temperature. (Slot A, B, C, D) 150 ps, after skew calibration at + 20_Cto+30_C ambient temperature. (Slot E, F, G, H)

100 ps, after skew calibration at + 20_Cto+30_C ambient temperature.

The timing reference is the lead edge which lead delay of each channel set to 0 ns. Skew calibration includes temperature calibration.

Page 4--44

1--20

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table 1--22: DG Mode (cont.)

Characteristics PV reference pageDescription

Phase Phase = Lead Delay / Period x 100 (%)

Resolution 0.1%

Differential Timing Offset

Range --1.0nsto1.0ns Resolution

DTG5078 1ps DTG5274 0.2 ps

Skew Calibration Only the skew between channels of same type output module is calibrated.

Range 500 ps nAccuracy

DTG5078 100 ps, after skew calibration (Slot A, B, C, D)

DTG5274 100 ps, after skew calibration

nRandom Jitter

DTG5078 (using DTGM20)

DTG5274 (using DTGM30)

nTotal Jitter

DTG5078 (using DTGM20)

DTG5274 (using DTGM30)

Cross Point

Slot A, B, C, and D Range 30% to 70% Resolution 2%

200 ps, after skew calibration (Slot E, F, H, G)

Page 4--44

Measured with clock pattern (01010...). Measured by Histogram function of CSA8000 + 80E03.

<4 ps rms, at 750 Mb/s, delay = 0.0 ns, amplitude = 0.8 V format = NRZ, slew rate = 2.25 V/ns, jitter mode = off

p-p

, data

Page 4--50

<3 ps rms, at 2.7Gb/s, delay = 0.0 ns, amplitude = 0.8 Vp-p, data format = NRZ, jitter mode = off

Measured with PRBS2^15-1 pattern. Measured by RMS Jitter and Pk-Pk Jitter in Measurement function of CSA8000 + 80E03.

<18 ps rms, (<85 ps amplitude = 0.8 V, Data Format = NRZ, and Jitter mode off

<16 ps rms, (<60 ps

, typical), at 750 Mb/s, delay = 0.0 ns,

p-p

, typical), at 2.7 Gb/s, delay = 0.0 ns,

p-p

Page 4--53

amplitude = 0.8 V, Data Format = NRZ, and Jitter mode off

Specifications

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--21

Specifications

Table 1--22: DG Mode (cont.)

Characteristics PV reference pageDescription

Jitter Performance

Mode All Pattern Jitter, Partial Pattern Jitter All Pattern Jitter

Jitter Profile Sine, Gaussian Noise, Square, and Triangle. Jitter Frequency 0.015 Hz to 1.56MHz Jitter Frequency Resolution 4 digits or 1 mHz Jitter Amplitude Refer to Table 1--28.

Partial Pattern Jitter

Jitter Profile Sine, Gaussian Noise, Square, and Triangle. Jitter Frequency 0.015 Hz to 1.56MHz Jitter Frequency Resolution 4 digits or 1 mHz Jitter Amplitude Refer to Table 1--28.

Lead Delay + Differential Timing Offset have to be within the range of Lead Delay. Trail Delay + Differential Timing Offset have to be within the range of T rail Delay.

This function is available when the DTGM30 output module is used and the data format is set to NRZ.

Jitter Performance is available only for Ch1 in slot A. When this function is activated, Ch2 in slot A output is disabled.

age4--

Resolution 10 ps or 0.01 UI

age4--

Resolution 10 ps or 0.01 UI

1--22

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table 1--23: Clock Range in NRZ

ClockRateLengthinHardware

Granularity

Specifications

Clock Period

From To From To

Max Freq. 400 Mb/s Min Period 2.5 ns >400 MHz 1 960/240 4/1

400 Mb/s 200 Mb/s 2.5 ns 5ns 2 480/120 2/1 200 Mb/s 100 Mb/s 5ns 10 ns 4 240/60 1/1 100 Mb/s 50 Mb/s 10 ns 20 ns 8 120/30

50 Mb/s 25 Mb/s 20 ns 40 ns 16 60/15 40 Mb/s 20 Mb/s 25 ns 50 ns 20 48/12 20 Mb/s 10 Mb/s 50 ns 100 ns 40 24/6 10 Mb/s 5Mb/s 100 ns 200 ns

5Mb/s 2.5 Mb/s 200 ns 400 ns 4Mb/s 2Mb/s 250 ns 500 ns 200 5/2 2Mb/s 1Mb/s 500 ns 1 µs 400 3/1

1Mb/s 500 kb/s 1 µs 2 µs 800 2/1 500 kb/s 250 kb/s 2 µs 4 µs 1600 1/1 400 kb/s 200 kb/s 2.5 µs 5 µs 2000 200 kb/s 100 kb/s 5 µs 10 µs 4000 100 kb/s 50 kb/s 10 µs 20 µs 8000

Hardware

Clock

800 MHz to

400 MHz

Vector

Rate

80 12/3

160 6/2

Minimum Block

Len

th in Hardware

Sequence

(DTG5274/DTG5078)

Block Size

Granularit

(DTG5274/

DTG5078)

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--23

Specifications

ClockRateLengthinHardware

Granularity

800MHzt

Table 1--24: Clock Range in RZ/R1

Clock Period

From To From To

Hardware

Clock

Vector

Rate

Minimum Block

Len

th in Hardware Sequence

(DTG5274/DTG5078)

Block Size

Granularit

(DTG5274/

DTG5078)

Max Freq. 200 Mb/s -- 5ns >400 MHz 2 480/120 2/1

200 Mb/s 100 Mb/s 5ns 10 ns 4 240/60 1/1 100 Mb/s 50 Mb/s 10 ns 20 ns 8 120/30

50 Mb/s 25 Mb/s 20 ns 40 ns 16 60/15 40 Mb/s 20 Mb/s 25 ns 50 ns 20 48/12 20 Mb/s 10 Mb/s 50 ns 100 ns 40 24/6 10 Mb/s 5Mb/s 100 ns 200 ns

5Mb/s 2.5 Mb/s 200 ns 400 ns

800 MHz to

400 MHz

80 12/3

160 6/2 4Mb/s 2Mb/s 250 ns 500 ns 200 5/2 2Mb/s 1Mb/s 500 ns 1 µs 400 3/1 1Mb/s 500 kb/s 1 µs 2 µs 800 2/1

500 kb/s 250 kb/s 2 µs 4 µs 1600 1/1 400 kb/s 200 kb/s 2.5 µs 5 µs 2000 200 kb/s 100 kb/s 5 µs 10 µs 4000 100 kb/s 50 kb/s 10 µs 20 µs 8000

Ch1 (Ch3)

Ch2 (Ch4)

Figure 1--6: Channel addition function

Ch1 (Ch3) Output

Ch2 (Ch4) Output

1--24

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table 1--25: Delay Offset

Long Delay Format Period Delay Offset

Off -- -- -- -- -- -- 0to5ns

NRZ

RZ/R1

≥1.25 ns

<1.25 ns

≥2.5 ns

<2.5 ns

SW Sequence: 0 to 600 ns HW Sequence: 0 to 300 ns

SW Sequence:

0 to 480 x Period

HW Sequence:

0 to 240 x Period

SW Sequence: 0 to 600 ns HW Sequence: 0 to 300 ns

SW Sequence:

0 to 240 x Period

HW Sequence:

0 to 120 x Period

Specifications

Period

Trail Delay

Lead Delay Pulse Width

Phase = Lead Delay / Period x 100 (%) Duty = Pulse Width / Period x 100 (%)

Figure 1--7: The definitions of Lead/Trail Delay and Pulse Width

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--25

Specifications

600 n (300 n)

177.7 n

(88.8 n)

Operation Mode: DG Long Delay: On Delay Offset: 0 s

with RZ/R1

NRZ only

400M 800M

The number in ( ) are

for HW Sequence

1.35G 2.7G

Data Rate (b/s)

Figure 1--8: Maximum Lead Delay

Table 1--26: Lead Delay

Long Delay Format Period Lead Delay

Off -- -- -- -- -- -- 0 (--Delay Offset) to 5 ns (--Delay Offset)

NRZ

RZ/R1

It should be from 0% to 100% in Duty conversion and Pulse Width is from 290 ps to (Period -- 290 ps).

≥1.25 ns

<1.25 ns

≥2.5 ns

<2.5 ns

SW Sequence:

0 (--Delay Offset) to 600 ns (--Delay Offset)

HW Sequence:

0 (--Delay Offset) to 300 ns (--Delay Offset)

SW Sequence: 0 (--Delay Offset) to 480 x Period (--Delay

Offset) HW Sequence: 0 (--Delay Offset) to 280 x Period (--Delay

Offset) SW Sequence:

0 (--Delay Offset) to 600 ns (--Delay Offset)

HW Sequence:

0 (--Delay Offset) to 300 ns (--Delay Offset)

SW Sequence: 0 (--Delay Offset) to 240 x Period (--Delay

Offset) HW Sequence: 0 (--Delay Offset) to 120 x Period (--Delay

Offset)

1--26

DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

(p)

Table 1--27: Trail Delay

Long Delay Period Trail Delay

Off

On -- -- --

When the jitter generation is enabled, the range of trail delay for mainframe 1, slot A,

<10 ns ≥10 ns

290 ps (--Delay Offset) to 5 ns + Period / 2(--Delay Offset) Period / 2 -- Delay Offset to 5 ns + Period / 2 (-- Delay Offset)

See footnote 20

CH1 is set to as follows: 290 ps (-- Delay Offset) to 5 ns + 290 ps (-- Delay Offset)

It should be from 0% to 100% in Duty conversion and Pulse Width is from 290 ps to (Period -- 290 ps).

Table 1--28: Jitter Amplitude

19,20

Jitter Edge

Data

Format

Jitter Mode Jitter

Both NRZ All Pattern

Jitter

Partial Pat-

tern Jitter

RZ/R1 All Pattern

Jitter

Partial Pat-

tern Jitter

Rise/

NRZ Any Any (Period -- 290 ps) / Period * 2

Fall

RZ/R1 Any Any (min (Pulse Width, Period -- Pulse Width) --

Maximum Jitter Amplitude (UI p-p)

Profile

Sine The larger one of the numerical values drawn

by the formula below.

(1 -- Minimum Pulse Width / Period) * 9.9e5 / Fj or 1 -- Minimum Pulse Width / Period

Note: Condition 1 should be fulfilled.

See Condition 1 below.

Others 1 -- 290 ps / Period

Any

Note: Condition 1 should be fulfilled.

Sine (Period -- Pulse Width -- 290 ps) / Period *

9.9e5 / Fj

Note: Condition 1 should be fulfilled.

Others (Period -- Pulse Width -- 290 ps) / Period

Any

Note: Condition 1 should be fulfilled.

290 ps) / Period * 2

Note: Condition 1 should be fulfilled.

Fj: Jitter Frequency Ajui_pp: Jitter Amplitude expressed with UIpk-pk Ajui_rms: Jitter Amplitude expressed with UIrms Ajs_pp: Jitter Amplitude expressed with s pk-pk Ajs_rms: Jitter Amplitude expressed with s rms

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--27

Specifications

Ajui_pp * Period = Ajs_pp Ajui_rms * Period = Ajs_rms

Condition 1 Lead Delay + Ajs_pp/2 ≤ Maximum of Lead Delay and Lead Delay -- Ajs_pp/2 ≥ Minimum of Lead Delay

If Ch1 is set to RZ/R1, the following condition 2 should be also fulfilled.

Condition 2 Trail Delay + Ajs_pp/2 ≤ Maximum of Trail Delay and Trail Delay -- Ajs_pp/2 ≥ Minimum of Trail Delay

Table 1--29: PG Mode

Characteristics Description PV reference page

Slot A, B, C and D.

Note: Slot E, F, G and H are not available in PG Mode.

Frequency

DTG5078 50 kHz to 375 MHz DTG5274 50kHzto1.35GHz

Frequency Resolution

Internal Clock 8 digits External Clock 4 digits

External Phase Lock In 4 digits Run Mode Continuous or Burst Burst Count 1 to 65,536 Pulse Rate Off, 1/1, 1/2, 1/4, 1/8, or 1/16 Channel Addition Refer to Figure 1--6 on page 1--24.

Slot A, B, C, and D

Note: Slot E, F, G and H are not available in DTG5078.

Function AND or XOR Delay Offset

Range 0to3µs

DTG5078 1ps DTG5274 0.2 ps

Lead Delay Refer to Figure 1--7 for definition.

Range

>3 µs 0 (--Delay Offset) to Period (--Delay Offset) <3 µs 0 (--Delay Offset) to 3µs (--Delay Offset)

Resolution

1--28

DTG5078 1ps

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table 1--29: PG Mode (cont.)

Characteristics PV reference pageDescription

DTG5274 0.2 ps

nAccuracy

Trail Delay Refer to Figure 1 --7 for definition.

Resolution nAccuracy

Duty Cycle Refer to Figure 1--7 for definition.

Range (Trail Delay -- Lead Delay) / Period x Pulse Rate x 100 Resolution 0.1%

Pulse Width Refer to Figure 1--7 for definition.

Range Duty x Period x Pulse Rate / 100 or Trail Delay -- Lead Delay Resolution 5ps

Phase Phase = Lead Delay / Period x Pulse Rate x 100 (%)

Resolution 0.1%

Differential Timing Offset

Range --1.0nsto1.0ns Resolution

Skew Calibration Only the skew between channels of same type output module is calibrated.

Range 500 ps

nAccuracy

nRandom Jitter

DTG5078 (using DTGM20)

DTG5274 (using DTGM30)

It should be from 0% to 100% in Duty conversion and Pulse Width is from 290 ps to (Period -- 290 ps).

The timing reference is the lead edge which lead delay of each channel set to 0 ns. Skew calibration includes temperature calibration.

It should be from 0% to 100% in Duty conversion and Pulse Width is from 290 ps to (Period x Pulse Rate -- 290 ps).

Lead Delay + Differential Timing Offset have to be within the range of Lead Delay. Trail Delay + Differential Timing Offset have to be within the range of Trail Delay.

DTG5078 DTG5274

100 ps, after skew calibration at + 20_Cto+30_C ambient temperature.

5ps 100 ps, after skew calibration at + 20_Cto+30_C ambient

Page 4--44

temperature.

DTG5078 1ps DTG5274 0.2 ps

DTG5078 100 ps, after skew calibration Page 4--44 DTG5274 100 ps, after skew calibration

Measured by Histogram function of CSA8000 + 80E03. <4 ps rms, at 375 MHz, delay = 0.0 ns, amplitude = 0.8 V

slew rate = 2.25 V/ns, jitter mode = off

<4 ps rms, at 1.35 GHz, delay = 0.0 ns, amplitude = 0.8 V

p-p

Page 4--50

jitter mode = off

Specifications

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--29

Specifications

Output Module

Table 1--30: DTGM10

Characteristics Description PV reference page

Connector SMA (4 ea) Output Signal Type Single-end Number of channels 4 channels when used in DTG5078

2 channels when used in DTG5274

Source Impedance 50 Ω Polarity Normal or Invert Output Voltage

High Level (VOH) range --1.25 V to + 2.00 V into 50 Ω to GND

Low Level (VOL) range --1.50 V to + 1.75 V into 50 Ω to GND

Amplitude (VOH--VOL) range 0.25 V

Offset ((VOH+VOL) / 2) range Depends on the limit of VOH and VOL set by the user.

Resolution 5mV

Maximum Output Voltage +7.0V

Minimum Output Voltage -- 3 . 0 V

nDC Accuracy

Maximum Output Current

Rise /Fall Time (20% to 80%), typical

at high 1.0 V, low 0 V

at high 2.0 V, low --1.0 V Slew Rate Control

Range 0.65 V/ns to 1.30 V/ns, into 50 Ω to GND

Resolution 10 mV/ns Aberration, typical

Positive Overshoot <16%

Negative Overshoot <16%

Output voltage (Vout) should fulfill the following two conditions.

Note. These conditions are automatically fulfilled, when setup.

=TermR,Vtt=TermV

1) --0.04 x R

+Vtt Vout  0.04 x RL+Vtt

2) --3.00  Vout  7.00

--2.50 V to + 7.00 V into 1 MΩ to GND

--3.00 V to + 6.50 V into 1 MΩ to GND

0.50 V

to 3.50 V

p-p

to 10.00 V

p-p

into 50 Ω to GND

p-p

into 1 MΩ to GND

p-p

(3% of the set value)50mV into 50 Ω to GND, after level calibration at + 20_Cto+30_C ambient temperature.

40 mA Refer to Figure 1--10 for the equivalent circuit.

<540 ps, into 50 Ω to GND <1.5 ns, into 50 Ω to GND

Page 4--62

1--30

DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

Table 1--31: DTGM20

Characteristics Description PV reference page

Connector SMA (4 ea) Output Signal Type Single-end Number of channels 4 channels when used in DTG5078

2 channels when used in DTG5274

Source Impedance 50 Ω Polarity Normal or Invert Output Voltage

High Level (VOH) --0.90 V to + 2.5 V into 50 Ω to GND

Low Level (VOL) --1.00 V to +2.40 V into 50 Ω to GND

Amplitude (VOH--VOL) 0.10 V

Offset ((VOH+VOL) / 2) Depends on the limit of VOH and VOL set by the user. Maximum Output Voltage +5.0V Minimum Output Voltage -- 2 . 0 V Resolution 5mV nDC Accuracy

Maximum Output Current

Rise /Fall Time (20% to 80%), typical

at high 1.0 V, low 0 V at high 2.0 V, low --1.0 V

Slew Rate Control

Range 0.63 V/ns to 2.25 V/ns, into 50 Ω to GND Resolution 10 mV/ns

Aberration, typical

Positive Overshoot <15% Negative Overshoot <15%

Output voltage (Vout) should fulfill the following two conditions.

Note. These conditions are automatically fulfilled, when setup.

=TermR,Vtt=TermV

1) --0.08 x R

+Vtt± Vout ± 0.08 x RL+Vtt

2) --2.00 ± Vout ± 5.00

--1.80 V to + 5.0 V into 1 MΩ to GND

--2.00 V to + 4.80 V into 1 MΩ to GND

0.20 V

to 3.50 V

p-p

to 7.00 V

p-p

into 50 Ω to GND

p-p

into 1 MΩ to GND

p-p

(3% of the set value)50mV into 50 Ω to GND, after level calibration at + 20_Cto+30_C ambient temperature.

80 mA Refer to Figure 1--10 for the equivalent circuit.

<340 ps, into 50 Ω to GND <760 ps, into 50 Ω to GND

Page 4--62

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--31

Specifications

Table 1--32: DTGM30

Characteristics Description PV reference page

Connector SMA (4 ea) Output Signal Type Complementary Number of channels 2 Source Impedance 50 Ω Polarity Normal or Invert Output Voltage Refer to Figure 1--9.

High Level (VOH)

Low Level (VOL)

Amplitude (VOH--VOL)

Offset ((VOH+VOL) / 2) Depends on the limit of VOH and VOL set by the user.

Maximum Output Voltage +7.0V

Minimum Output Voltage -- 2 . 0 V

Resolution 5mV

nDC Accuracy

Maximum Output Current

Rise /Fall Time (20% to 80%), typical

at high 0.1 V, low 0 V

at high 1.0 V, low 0 V Aberration, typical

Positive Overshoot <10%

Negative Overshoot <10%

High level (VoH) should fulfill the following formulas.

=TermR,Vtt=TermV

VOH ± 7.00 VOH ± (7.00 x RL + 50 x Vtt) / (RL + 50) VOH ± RL / 50 x (2.5 -- 0.06 x RL / (RL + 50)) + Vtt VOH ² (--2.00 x RL + 50 x Vtt) / (RL + 50) VOH ² Vtt -- RL / 50

--1.00 V to + 2.47 V into 50 Ω to GND

--1.94 V to + 7.00 V into 1MΩ to GND

--2.00 V to + 2.44 V into 50 Ω to GND

--2.00 V to + 6.94 V into 1MΩ to GND

30 mV

60 mV

to 1.25 V

p-p

to 2.50 V

p-p

into 50 Ω to GND

p-p

into 1MΩ to GND

p-p

(3% of the set value)50mV into 50 Ω to GND,

Page 4--62

after level calibration at + 20_Cto+30_C ambient temperature.

80 mA Refer to Figure 1--11 for the equivalent circuit.

<95 ps into 50 Ω to GND <110 ps into 50 Ω to GND

1--32

DTG5078 & DTG5274 Data Timing Generator Service Manual

Low level (VoL) should fulfill the following formulas.

=TermR,Vtt=TermV

VOL ² --2.00 VOL ² (50 x Vtt -- 4.5 x RL) / (RL + 50) VOL ² Vtt -- RL (0.02 + 2.5 / (RL + 50)) VOL < ((2.5 -- 0.06) x RL / 50) + Vtt

Amplitude should fulfill the following formulas.

=TermR,Vtt=TermV

VOH -- VOL > 2 x (Vtt -- RL/50 -- Offset) VOH -- VOL > 2 x ((RL x (--2) + 50 x Vtt) / ((RL + 50) -- Offset)) VOH -- VOL < 2 x ((2.5 x RL -- 50 x Offset + 50 x Vtt) / (2 x RL + 50)) VOH -- VOL < 2 x ((7 x RL -- 50 x Vtt) / (RL + 50) -- Offset)

Specifications

Figure 1--9: Output voltage window and clock out (DTGM30)

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--33

Specifications

Ω

Out

Figure 1--10: Equivalent circuit of DTGM10 and DTGM20 outputs

50 Ω

Out

IIL

The IIL determines the amplitude, and VIH determines the offset.

Figure 1--11: Equivalent circuit of DTGM30 output

1--34

DTG5078 & DTG5274 Data Timing Generator Service Manual

Miscellaneous

Table 1--33: Mechanical

Characteristics Description

Net weight

DTG5078 approx. 17.5 kg (38.6 lb) DTG5274 approx. 17.0 kg (37.5 lb) DTGM10 approx. 0.25 kg (0.55 lb) DTGM20 approx. 0.26 kg (0.57 lb) DTGM30 approx. 0.27 kg (0.60 lb)

Net weight with package

DTG5078 approx. 24.0 kg (52.9 lb) DTG5274 approx. 23.5 kg (51.8 lb)

Dimensions

DTG5078/DTG5274 Height 266 mm (10.5 in)

284 mm (11.3 in) with bottom feet

Width 445 mm (17.5 in)

459 mm (18.1 in) with side handle

Length 462 mm (18.2 in)

502 mm (19.8 in) with rear feet

DTGM10/DTGM20/DTGM30 Height 33 mm (1.3 in)

Width 84 mm (3.3 in) Length 133 mm (5.2 in)

Dimensions with package

DTG5078/DTG5274 Height 500 mm (19.7 in)

Width 600 mm (23.6 in) Length 790 mm (31.1 in)

DTGM10/DTGM20/DTGM30 Height 83 mm (3.3 in)

Width 238 mm (9.4 in) Length 227 mm (8.9 in)

Specifications

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--35

Specifications

Table 1--34: Installation requirement

Characteristics Description

Heat dissipation

Maximum power 600 VA

Dissipation (fully loaded) Maximum line current is 5.5 Arms at 50 Hz, 90 V line. Surge current

Cooling clearance Top:

30 A (25_C) peak for  5 line cycles, after the instrument has been turned off for at least 30s

2 cm (0.8 in)

Bottom:

Sides 15 cm (6 in) Rear 7.5cm(3in)

2 cm (0.8 in)

NOTE: The feet on the bottom provide the required clearance when set on a flat surface.

Table 1--35: Environmental

Characteristics Description

Atmospherics

Temperature

Operating Nonoperating -- 20 _Cto+60_C

Temperature Gradient

Operating Nonoperating

Relative humidity

Operating 20% to 80% (no condensation)

Nonoperating 5% to 90% (no condensation)

Altitude (Hard disk drive restriction)

Operating Up to 3,000 m (10,000 ft)

Nonoperating Up to 12,000 m (40,000 ft)

+10_Cto+40_C

≤15_C per hour (No Condensation) ≤30_C per hour (No Condensation)

Maximum wet-bulb temperature 29.4_C

Maximum wet-bulb temperature 40.0_C

Maximum operating temperature decreases 1_C each 300 m (1,000 ft) above 1,500 m ( 5,000 ft)

1--36

DTG5078 & DTG5274 Data Timing Generator Service Manual

Table 1--35: Environmental (cont.)

Characteristics Description

Dynamics

Random Vibration

Operating 2.65 m/s2rms (0.27 Grm), from 5 Hz to 500 Hz, 10 minutes Nonoperating 22.36 m/s2rms (2.28 Grm), from 5 Hz to 500 Hz, 10 minutes

Shock

Nonoperating 294 m/s2(30 G), half-sine, 11 ms duration

Three shocks per axis in each direction (18 shocks total)

May not meet all performance specifications outside this range.

Table 1--36: Power Supply

Characteristics Description

Rating voltage 100 VAC to 240 VAC Voltage range 90 VAC to 250 VAC Frequency 47 Hz to 63 Hz Maximum Power 560 W (600 VA maximum) Surge Current 30 A peak (25_C) for ±5 line cycles,

after the instrument has been turned off at least 30 sec.

Specifications

DTG5078 & DTG5274 Data Timing Generator Service Manual

1--37

Specifications

Table 1--37: Certifications and compliances

Characteristics Description

EC declaration of conformity EC council EMC Directive 89/336/EEC, amended by 89/336/EEC; EN61326--1: 1997

Product Family Standard for Electrical Equipment for Measurement, Control, and Laboratory Use-EMC Requirements.

Emissions:

EN 55011 Class A EN 61000-3-2

Immunity:

EN 61000-4-2 EN 61000-4-3 EN 61000-4-4 EN 61000-4-5 EN 61000-4-6 EN 61000-4-11

Radiated and Conducted emissions Power Line Harmonic

Electrostatic Discharge Immunity Radiated RF Electromagnetic Field Immunity Electrical Fast Transient/Burst Immunity Surge Immunity Conducted Disturbances Induced by RF Field Immunity Power Line Interruption Immunity

Compliance was demonstrated to the following specification as listed in the Official Journal of the European Communities:

Low Voltage Directive 73/23/EEC, amended by 93/68/EEC

EN 61010-1/A2:1995 Safety requirements for electrical equipment for measure-

ment, control, and laboratory use

Australia/New Zealand declaration of conformity -- EMC

Safety

Third party certification

Self declaration

Installation category Power input — Installation Category II (as defined in IEC 61010-1, Annex J) Pollution degree Pollution Degree 2 (as defined in IEC 61010-1)

Conforms with the following standards in accordance with the Electromagnetic Compatibility Framework:

AS/NZS 2064.1/2 Class A radiated and Conducted Emissions UL3111-1 -- Standard for electrical measuring and test equipment

CAN/CSA C22.2 No. 1010.1 -- Safety requirements for electrical equipment for measurement, control and laboratory use

IEC 61010-1/A2:1995 -- Safety requirements for electrical equipment for measurement, control, and laboratory use

1--38

DTG5078 & DTG5274 Data Timing Generator Service Manual

Specifications

Table 1--38: Installation category and Pollution degree

Characteristics Description

Installation category Terminals on this product may have different installation category designations. The

installation categories are:

Category Descriptions

CAT III Distribution-level mains (usually permanently connected).

Equipment at this level is typically in a fixed industrial location

CAT II Local-level mains (wall sockets). Equipment at this level

includes appliances, portable tools, and similar products. Equipment is usually cord-connected

Pollution degree

CAT I

A measure of the contaminates that could occur in the environment around and within a product. Typically the internal environment inside a product is considered to be the same as the external. Products should be used only in the environment for which they are rated.

Secondary (signal level) or battery operated circuits of electronic equipment

Category Descriptions

Pollution Degree 1 No pollution or only dry, nonconductive pollution occurs.

Products in this category are generally encapsulated, hermetically sealed, or located in clean rooms.

Pollution Degree 2 Normally only dry, nonconductive pollution occurs.

Occasionally a temporary conductivity that is caused by condensation must be expected. This location is a typical office/home environment. Temporary condensation occurs only when the product is out of service.

Pollution Degree 3

Pollution Degree 4

Safety certification compliance

Equipment type Test and measuring Safety class Class I (as defined in IEC 61010-1, Annex H) - grounded product Safety operating temperature

range

Overvoltage category Overvoltage category II (as defined in IEC 61010-1, Annex J)

See Table 1--35.

+5_Cto+40_C

Conductive pollution, or dry, nonconductive pollution that becomes conductive due to condensation. These are sheltered locations where neither temperature nor humidity is controlled. The area is protected from direct sunshine, rain, or direct wind.

Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor locations.

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Specifications

1--40

DTG5078 & DTG5274 Data Timing Generator Service Manual

Operating Information

Installation

This section covers installation of t he data timing generator, addressing the following topics:

H Checking the Environment Requirements on page 2--4

H Output Module on page 2--5

H Powering On the Data Timing Generator on page 2--6

H Setting up Windows 2000 on page 2--7

H Shutting Down the Data Timing Generator on page 2--8

H Creating an Emergency Rescue Disk on page 2--10

H Backing Up User Files on page 2--13

H Installing Software on page 2--13

CAUTION. Be sure to create your emergency rescue disk as described on page 2--10. You may need that disk if you ever need to reinstall Windows 2000 from the data timing generator hard drive.

DTG5078 & DTG5274 Data Timing Generator Service Manual

2--1

Installation

Supplying Operating Power

WARNING. To avoid equipment failure and potential fire or personal shock hazards, do not exceed the maximum rated operating voltage of 250 V between the voltage-to-ground (earth) and either pole of the power source. The DTG5000 Series operates from a single-phase power source and has a three-wire power cord with a t wo-pole, three-terminal grounding plug. Before making connection to the power source, be sure theDTG5000 Series has a suitable two-pole, three-terminal, grounding-type plug.

To avoid personal shock hazard, do not touch conductive parts. All accessible conductive parts are directly connected through the grounding conductor of the power cord to the grounded (earth) contact of the power plug. The DTG5000 Series is safety Class 1 equipment (IEC designation).

To prevent electrical shock, remove all power from the instrument, switch the PRINCIPAL POWER SWITCH on the back panel to OFF, and disconnect the power cord from the instrument. Some components in the DTG5000 Series are still connected to line voltage after powering off the instrument from the front-panel ON/STBY button.

Power Cord Information

A power cord with the appropriate plug configuration is supplied with each DTG5000 Series Data Timing Generator. Table 2--1 gives the color-coding of the conductors in the power cord. If you require a power cord other than the one supplied, refer to Table 2--2.

Table 2--1: Power-cord conductor identification

Conductor Color Alternate Color

Ungrounded (Line) Brown Black

Grounded (Neutral) Light Blue White

Grounded (Earthing) Green/Yellow Green

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Installation

Table 2--2: Power cord identification

Plug configuration Normal usage Option number

North America 125 V/15 A Plug NEMA 5-15P

Europe 230 V

United Kingdom 230 V

Australia 230 V

Switzerland 230 V

Japan 100 V

Standard

DTG5078 & DTG5274 Data Timing Generator Service Manual

China 230 V

No power cord supplied. A99

A10

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Installation

Checking the Environment Requirements

Read this section before attempting any installation procedures. This section describes site considerations and power requirements for your data timing generator.

Site Considerations

Operating Requirements

The data timing generator is designed to operate on a bench in the normal position (on the bottom feet). For proper cooling, at least three inches (7.62 cm) of clearance is required on both sides of the data timing generator, and the bottom requires the clearance provided by the mainframe feet.

If you operate the data timing generator in the Master-Slave mode, you can stack up to two mainframes.

CAUTION. To avoid damage to the mainframe, always close the bottom stands when you stack the mainframes.

Using a cart is not recommended when you stack the mainframes. Doing so could result in serious damage to the cart or mainframes.

Do not operate the mainframe while it rests on its left side feet. Always place the mainframe in the normal position (on the bottom feet) while the mainframe powered-on.

Table 2--3 shows general operating requirements for the data timing generator. For more information, refer to Specifications on page 1--36. It covers power source, temperature, humidity and altitude information.

2--4

Table 2--3: Operating requirements

Item Description

Operating temperature +10_Cto+40_C

Operating relative humidity 20% to 80% (No condensation)

Operating altitude Up to 3 km (10,000 ft)

Power supply

Rating voltage 100 V to 240 V

Voltage range 90 V to 250 V

Frequency 47 Hz to 63 Hz

Maximum power 600 VA maximum

DTG5078 & DTG5274 Data Timing Generator Service Manual

Output Module

Installation

The DTG5000 Series Data Timing Generator mainframe and output module(s) are shipped separately. At least one output module must be installed in the mainframe slot to operate properly.

Three types of output modules can be combined in any combination. Each module can be inserted in any slot. There are functional differences between slot A to D and slot E to H. (Refer to Mainframe and Output Configuration on page 1--3.) It is recommended that slot A is used when only one output module is installed in the mainframe slot.

Installing the Output

Module

To install the output module, first power off the mainframe using the front panel On/Standby switch.

CAUTION. To prevent damage to the output module or mainframe, never install or remove the output module when the mainframe is powered on.

To avoid the damage from Electro Static Discharge, please do not touche the board surface or connectors of the output module with your fingers when you handle the module.

Attach the blank panel to the mainframe module slot(s) when the output module(s) are not installed.

If the output module is not in use for a long time, attach the connector caps and SMA terminations (DTGM30) to the output module and then store the output module in the shipping carton. The connector caps and SMA terminations are provided with your output module.

1. Verify that the data timing generator mainframe is not powered on.

2. Remove the blank panel from the mainframe slot.

3. Place the output module in a compartment.

4. Gently push the output module into the slot with firm pressure.

5. Once the module is seated, tighten the two screws to secure the module to

the mainframe.

Removing the Output

Module

DTG5078 & DTG5274 Data Timing Generator Service Manual

Verify that the data timing generator mainframe is not powered on.

1. Loosen the two screws.

2. Grasp the right and left screws and slowly pull the module out of the

mainframe slot.

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Installation

3. Attach a blank panel to the slot.

Powering On the Data Timing Generator

Follow these steps t o power on the data timing generator. Refer to page 2--7 for Windows 2000 setup.

1. Connect the proper power cord from the rear panel power connector to the power system.

Principal

power

Switch

AC power connector

Figure 2--1: Principal power switch and AC power connector

NOTE. Connect the keyboard, mouse and other accessories before applying power to the product.

2. Turn on the principal power switch at the rear panel. (See Figure 2--1 for switch location.)

3. Push the front panel On/Standby switch to power on the data timing generator (see Figure 2--2 for the switch location).

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Figure 2--2: On/Standby switch location

Setting up Windows 2000

You need to set up the Windows 2000 when you first power on the data timing generator.

Installation

On/Standby

Switch

NOTE. Connect the keyboard and mouse before powering on the mainframe when you set up the Windows 2000.

1. Attach the standard accessory USB mouse and USB keyboard to the data timing generator mainframe. Three USB connector ports are equipped with the mainframe (two on the rear panel and one on the front right side).

2. Push the front panel On/Standby switch to power on the mainframe.

3. The Windows 2000 setup wizard appears on the data timing generator

screen.

4. Follow the on-screen instructions.

5. When Your Product K ey dialog box appears, enter the bar code number

which is located at the rear panel of mainframe.

6. Click Next button to display Date and Time Settings dialog box.

7. Confirm that the Date and Time Settings information is correct, and the click Next button.

8. A dialog box pops up to let you know that the Windows 2000 setup has been

completed.

9. Click Restart Now, and Windows runs.

The computer name is DTG5000, and you can log on the Windows 2000 as the following user name and password.

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2--7

Installation

H User name: Administrator

H Password: dtg5000

If you want to add the user name, or want to change the password, always use the Control Panel -- > Users and Passwords. For more information, consult Windows 2000 Help.

NOTE. If you connect a second or third DTG5000 Series Data Timing Generator to the network, use different computer names for additional mainframes.

Shutting Down the Data Timing Generator

When you push the front-panel On/Standby switch, the data timing generator starts a shutdown process (including a Windows shutdown) to preserve settings. This action removes power from most circuitry in the data timing generator. Avoid using the rear panel power switch or disconnecting the line cord to power off the mainframe.

The DTG5000 Series Data Timing Generator runs on Windows 2000, the shut down process is similar to a PC.

There are three ways to shut down the mainframe:

H Push the On/Standby switch

H Select the Windows Start menu, and then select Shut Down...

H Select the File menu from the DTG5000 software, then select Shutdown .

When the data timing generator settings were not changed. When the DTG5000 software is not running, or if the data timing generator settings have not changed since the mainframe start-up, the shut down process closes all the programs on Windows then restores the settings. The power is automatically shut off.

When the data timing generator settings were changed. If the DTG5000 Series Data Timing Generator settings were changed after the mainframe start-up. The dialog box shown below appears on the screen and asks if you want to save the current settings. Push any button within five seconds.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Installation

H Select Ye s to specify the file name and location, and then select OK to

continue the shut down process.

H Select No without saving the setup file and continue the shut down process.

H Select Cancel to abort shut down process and to return to the DTG5000 soft-

ware.

If you do not select the options within five seconds, Windows forces to terminate the DTG5000 software. The End Program dialog appears.

H Select End Now to continue the shut down process without saving the setup

file.

Without any action in ten seconds, the following dialog box appears.

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Installation

The DTG5000 software is waiting for the information about whether the user wants to save the setup information. In this case, Windows cannot terminate the DTG5000 software.

H Select End Now to continue the shut down process without saving the setup

file.

H Select Cancel to return to the DTG5000 software.

In all cases, select End Now to exit all the Windows programs while preserving the current Windows setting. This shuts off the power to the mainframe.

To completely remove the power from the data timing generator, perform the shutdown described above. Shut off the principal power switch at the rear panel, and then disconnect the power cord from the mainframe.

NOTE. If you push the front panel On/Standby switch for more than four seconds, the data timing generator power is forced to be shut off.

Do not attempt to push the rear panel principal power switch before shutting down the mainframe properly.

Creating an Emergency Rescue Disk

Now that you have completed the basic installation process, you should create an emergency rescue disk that you can use to restart your data timing generator in case of a major hardware or software failure.

NOTE. Create the emergency rescue disk and store it in a safe place. It may allow you to recover your Windows 2000 installation without rebuilding the entire data timing generator hard disk.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Installation

The emergency rescue disk contains basic files to restart your data timing generator. Follow these steps to create the emergency rescue disk:

1. Log on the mainframe with the administrator name. Refer to page 2--7.

2. Click the Windows Start button, select Program -- > Accessories -- > System Tools -- > Backup. The following dialog box appears.

3. Insert a formatted floppy disk into the floppy disk drive, and then click Emergency Repair Disk.

4. The Emergency Repair Diskette dialog box appears.

5. Click Also backup the registry..., and then click OK.

6. Wait until the task completes. The following dialog appears.

DTG5078 & DTG5274 Data Timing Generator Service Manual

2--11

Installation

7. Click OK, then remove the floppy disk and store it at a safe place.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Backing Up User Files

Installation

You should always back up your user files on a regular basis. Use the Back Up tool to back up files stored on the hard disk. The Back Up tool is located in the System Tools folder in the Accessories folder.

1. Log on the mainframe with the administrator name. Refer to page 2--7.

2. Click the Windows Start button, select Program -- > Accessories -- > System Tools -- > Backup.

3. Click Backup Wizard.

4. Follow the on-screen instructions.

5. The backup tool allows you to select your backup media and to select the

files and folders that you want to back up. Use the Windows online help for information on using the Backup tool. You can back up to the floppy drive or to a third-party storage device.

Installing Software

System Diagnostics

The data timing generator mainframe ships with the product software installed, so only perform the reinstallation if it becomes necessary. For more information on the software reinstallation, refer to the User Manual, volume 2.

In case of instrument problems, you may wish to run the system diagnostics. See the Self Test section on page 4--3 for more information on self tests and system diagnostics.

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Installation

2--14

DTG5078 & DTG5274 Data Timing Generator Service Manual

Operating Basics

Front Panel Controls

This section contains information on the various interfaces for controlling the DTG5000 Series Data Timing Generator and basic menu operation of the instrument.

H The Front Panel Controls on page 2--15 provides a quick overview of front

panel controls such as the knob, buttons and keys.

H The Front Panel Connectors on page 2--19 subsection provides a quick

overview of front panel connectors.

H The Rear Panel Connectors on page 2--21 provides a quick overview of rear

panel connectors.

H The Display Area and Application Windows on page 2--26 describes the

overview of screen elements and the application windows.

H The Using the Menu System on page 2--53 provides an overview of the menu

and key operations of the data timing generator.

Navigation Keys

This section introduces you to the front panel controls of the data timing generator, which provides a brief overview on how to use t he front panel key controls.

In addition to the front panel controls, you can also control the data timing generator from a keyboard and a mouse (provided with the instrument).

The MENU and SELECT buttons, TAB, ESC, and the Up, Down, Left and Right arrow keys are called navigation keys. These buttons and keys allow you to perform the data timing generator basic windows operation without using a mouse or a keyboard. Figures 2--3 shows the locations of the front-panel controls.

MENU button. Pushing the MENU button opens the pull-down menu items of the last menu bar that you opened, regardless of current selection.

To cancel the pull-down menu, push the MENU button again. Pressing the ESC key also forces the pull-down menu to disappear, however the menu bar is still active. If you press any arrow key in this state, the key operates on the menu bar area. Pressing the ESC key twice moves the focus to the lower window area.

DTG5078 & DTG5274 Data Timing Generator Service Manual

2--15

Operating Basics

SELECT button. The SELECT button has the same capability as the Windows standard ENTER key. This button is mainly used for the following actions:

H To make a selection on the pull-down menu items

H To open a pop-up menu in a tabular view

H To select an item in a pop-up menu

H To select OK or Cancel in the dialog box

Navigation keys

Digit Select arrow keys

Figure 2--3: Front panel controls

TAB key. The TAB key is used to move the focus within the window. By pressing

the SH IFT and TAB keys simultaneously, you can move the focus in the reverse direction.

ESC key. The ESC key is used to cancel text input or dialog box appearance. To cancel the menu items opened with the MENU button, press the ESC key twice.

Arrow keys (Up, Down, Left and Right). The arrow keys are used for the following actions:

2--16

H To open the pull-down menus on the menu bar and move to the desired

items, after pushing the MENU button (you can also use the knob).

H To move the current cell (cursor position) in a tabular view

DTG5078 & DTG5274 Data Timing Generator Service Manual

Operating Basics

H To select a radio button

When you press these buttons repeatedly the action is repeated.

DATA, LEVEL and TIMING buttons. Provide direct access to frequently used menus.

H DATA button: The DATA button is used to display a previously selected

pattern data editing window (Data-Listing window or Data-Waveform window). While one window is displayed, pushing this button switches to the alternate window on the screen.

H LEVEL button: The LEVEL button is used to display the Level window and

moves the focus to the previously selected items.

H TIMING button: The TIMING button is used to display the Timing window

and moves the focus to the Clock Frequency or previously selected item.

Knob. The knob is used to increment or decrement a set value or select an item from a pop-up or pull-down menu. Use right or left arrow keys just under the knob to move the digit when you increment or decrement the setup value.

Digit Select arrow keys. The Digit Select arrow key is used to move the underbar to a field that contains an editable number. This will allow you to change the digit with the knob.

RUN button. The RUN button is used to control the start and stop of signal outputs.

If the signal is being output, the LED indicator lights up. To actually output the signal through the output connectors, you must turn the O utput on in the Level window or push the front panel ALL OUTPUTS ON/OFF button.

PULSE GEN button. The PULSE GEN button is used to toggle between Pulse Generator and Data Generator modes. The LED lights up when the instrument is in PG mode.

MANUAL TRIGGER button. The MANUAL TRIGGER button is used to generate an internal trigger.

MANUAL EVENT button. The MANUAL EVENT button is used to generate an event signal internally.

Suffix buttons (p, G/n, M/,k/m).After you complete the input with numeric keys, you can determine the unit by pushing one of the suffix buttons, without pressing the Enter key.

If you push a suffix button for a frequency, the unit is interpreted as G (giga-), M (mega-) or k (kilo-). If you push it for a time or voltage, the unit is interpreted as p (pico-), n (nano-),  (micro-) or m (milli-).

DTG5078 & DTG5274 Data Timing Generator Service Manual

2--17

Operating Basics

SHIFT key. The SHIFT key has the same capability as the Shift key on a Windows PC keyboard.

ALT key. The ALT key has the same capability as the Alt key on a Windows PC keyboard.

CTRL key. The CTRL key has the same capability as the Ctrl key on a Windows PC keyboard.

ALPHA key. The ALPHA key is used to enter a character with a numeric key. Pressing the ALPHA key causes the LED to light up.

While the LED is on, the data timing generator is in the text input mode and you can use numeric keys to enter al phanumeric characters.

SPACE key. The SPACE key switches the On/Off state of a check box. Pressing the ALT and SPACE keys simultaneously displays the Control menu. See DTG icons on page 2--26 for details on the Control menu.

BKSP key. The BKSP key has the same capability as the Back Space key on a Windows PC keyboard.

DEL key. The DEL key has the same capability as the Delete key on a Windows PC keyboard.

ALL OUTPUTS ON/OFF button. This button is used to switch the on/off of channel output, DC output or clock output. To turn on or off of these outputs, use the Level window, DC Output window, or Time Base window, respectively. You can turn on or off the channel (or DC or clock) outputs all together by using this button, instead of switching the on/off separately.

If you push this button while at least one active channel or DC output or clock output is on, all the outputs turn off.

If you push this button while all the outputs are off, all the outputs turn on.

In the Data Generator mode, the physical channels that are not assigned to logic channel do not turn on.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Front Panel Connectors

Operating Basics

Figure 2--4 shows the locations of the data timing generator front panel connectors.

DC OUTPUT

USB

SKEW CAL IN

TRIGGER IN

EVENT IN

SYNC OUT

Figure 2--4: Front panel connectors

CAUTION. To prevent damage to your data timing generator, do not apply a voltage outside the specified input voltage range.

Do not apply a voltage to the output connector.

External trigger signal input connector.

Input Voltage Range.

H -- 5 V t o + 5 V , 5 0 Ω

H --10Vto10V,1kΩ

H Connector: BNC

DTG5078 & DTG5274 Data Timing Generator Service Manual

2--19

Operating Basics

EVENT IN

SYNC OUT

Event signal input connector.

Input Voltage Range.

H -- 5 V t o + 5 V , 5 0 Ω

H --10Vto10V,1kΩ

H Connector: BNC

Synchronized signal output connector for CML level.

Data Generator Mode. A pulse is output at the head of each block of the output pattern. If the block repeats, the pulse is output at each repeated block head.

Pulse Generator Mode. Single pulse is output at the timing of Burst. No signal is output in Continuous operation.

H V

H Connector: SMA

=0V,VOL=--0.4Vinto50Ω to GND

SKEW CAL IN

DC OUTPUT

USB

Signal input connector for adjusting channel-to-channel skews.

Input Voltage Level.

H ECL into 50 Ω to --2 V

H Connector: SMA

Outputs eight channel DC voltage. This signal is independent of the output module signal.

Output Voltage Range.

H -- 3.0 V to 5.0 V

H Connector: 2.54 mm 2x8pinheader(female)

Connect a USB device.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Rear Panel Connectors

Operating Basics

Figure 2--5 shows the locations of the data timing generator rear panel connectors. Also refer to Figure 2--6 on page 2--25 for peripheral connectors and ports.

Figure 2--6

on page 2--25

Figure 2--5: Rear panel connectors

CAUTION. To prevent damage to your data timing generator, do not apply a voltage outside the specified input voltage range.

Do not apply a voltage to the output connector.

CD-ROM drive

COM

Mouse

DTG5078 & DTG5274 Data Timing Generator Service Manual

The CD-ROM drive is used to reinstall the DTG5000 product software or to rebuild the operating system.

COM port.

Connect a PS/2 mouse. Any USB mouse must be connected to the USB port.

2--21

Operating Basics

Keyboard

GPIB

USB (2 ea)

VGA

Connect a PS/2 keyboard. By connecting a keyboard and mouse to the connectors, you can perform the Windows PC operations more easily. Any USB keyboard must be connected to the USB port.

The GPIB port. Used to control the data timing generator through the GPIB.

Connect a USB device. The keyboard and mouse of the data timing generator standard accessories must be connected to the USB port.

If an external display is connected to this connector, the same image as the data timing generator LCD screen is displayed.

Resolution Settings.

H The 800 by 600 setting is recommended.

H It is possible to set the data timing generator display off (from the Control

Panel settings) and to display t he screen image with external display. In this condition, images can be displayed at a higher resolution. If the external display is disconnected from the connector, images are displayed on the data timing generator screen at a resolution of 800 by 600 pixels, regardless of the resolution settings of the external display.

LAN

CLOCK

LAN is a port used to connect the data timing generator to a network. Use a 10Base-T or 100BASE-T connector. In the Master-Slave operation, the Master mainframe controls the Slave machine by way of network.

These are the external clock input/output signal connectors.

EXTERNAL IN. Connect the external clock input signal.

H Input Voltage Range: 0.4 V

p-p

to2V

into 50 Ω

p-p

H Input Frequency Range:

DTG5078: 1 MHz to 750 MHz DTG5274: 1 MHz to 2.7 GHz

OUT, OUT

. Outputs the clock signal. Amplitude and Offset can be set in the Time

Base window.

H Output Voltage Range V

: --1.00 V to 2.47 V into 50 Ω to GND

: --2.00 V to 2.44 V into 50 Ω to GND

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Operating Basics

Master-Slave Connection

H Output Voltage Amplitude: 0.03 V

to 1.25 V

p-p

H Resolution: 10 mV

H Signal type: Complementary

H Connector: SMA

NOTE.A50Ω SMA termination is attached to the data timing generator. When you use the clock out signal by single end, connect the termination to the unused connector.

Clock, Jump and Timing signals used for Master-Slave operation.

CLK IN, CLK IN

. Clock signal input connector to receive the clock signal from the

master-mainframe.

H Voltage level: ECL

H Connector: SMA

CLK OUT1, CLK OUT2, CLK OUT3, CLK OUT1

, CLK OUT2, CLK OUT3. Outputs the

clock signals from the master-mainframe to control the clock of slave-mainframe. Connect the CLK OUT1 to CLK IN of master-mainframe. CLK OUT3 and CLK OUT3

are equipped only in DTG5078.

H Connector: SMA

JUMP IN. Signal input connector to control the sequence waveform outputs in Master-Slave operation. Connect the master-mainframe JUMP OUTx signal to the slave-mainframe JUMP IN.

H Connector: BNC

JUMP OUT1, JUMP OUT2, JUMP OUT3. Signal output connectors to control the sequence waveform outputs in Master-Slave operation. This signal is used to control sequence waveform jumps of slave-mainframe. Connect the JUMP OUT1 to JUMP IN of master-mainframe. JUMP OUT3 is equipped only in DTG5078.

H Connector: BNC

DTG5078 & DTG5274 Data Timing Generator Service Manual

2--23

Operating Basics

PHASE LOCK

External PLL input/output signal connectors.

PHASE LOCK IN. External PLL input signal connector.

H Input Voltage Range: 0.2 V

p-p

to 3.0 V

p-p

H Input Frequency Range: 1 MHz to 200 MHz

H Impedance: 50 Ω, AC coupled

H Connector: BNC

EXTERNAL 10 MHz REF IN. External 10 MHz reference clock input signal connector.

H Input Voltage Range: 0.2 V

p-p

to 3.0 V

p-p

H Input Frequency Range: 10 MHz ¦ 0.1 MHz

H Impedance: 50 Ω, AC coupled

H Connector: BNC

10 MHz REF OUT. Outputs a 10 MHz reference clock signal.

H Output Voltage Amplitude:

1.2 V

2.4 V

into 50 Ω to GND

p-p

into 1 MΩ to GND

p-p

H Impedance: 50 Ω, AC coupled

H Connector: BNC

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Peripherals on the Rear Panel

The peripheral connections are the same as those you would make on a personal computer. The connection points are shown in Figure 2--6. See Table 2--4 for additional connection information.

CAUTION. To avoid product damage, power off t he data timing generator or place the data timing generator in Standby power mode before installing any accessories except a USB mouse or a USB keyboard to the mainframe connectors. (You can connect or disconnect USB devices while powe is supplied to the mainframe.) See Powering Off the Data Timing Generator on page 2--8.

Operating Basics

LAN

VGA monitor

CD-ROM drive

USB

GPIB

COM

Mouse

Keyboard

Figure 2--6: Locations of peripheral connectors on rear panel

Table 2--4: Additional connection information

Item Description

Monitor If you use an external monitor with the data timing generator

mainframe screen, the resolution of the external monitor is fixed to 800 x 600. If you select the external monitor only, high resolution display can be possible. You can set the resolution by using the Windows 2000 control panel.

Printer If you connect the printer directly to the data timing generator,

connect the USB printer to a USB connector port of the mainframe. You cannot connect the parallel printer directly to the mainframe. If your data timing generator is connected to LAN, you can use a network printer.

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2--25

Operating Basics

Display Area and Application Windows

Menu Bar: Access to data timing

generator functions and online

help system here.

Toolbar: Switc hes window

display, quick access to

various windows here.

Status Bar: Display of operating

status, mode, clock frequency,

and online status on/off.

Menu Bar

Figure 2--7: Screen elements just after the power on

You can access each of the menu bar items by using the MENU button and the Up, Down, Left and/or Right arrow keys.

DTG icons (control box menus). These menus control the data timing generator window operations.

Table 2--5: Control box menus

Items Description

Resize Restores the window to the initial display size.

Move Moves the window. You can use the Up, Down, Left and/or Right

arrow key to move the window in the direction. Press the Enter key for completion.

Size Resizes the window. First, press the Up, Down, Left or Right arrow

key to enable one of the window sides. Pressing another pair of arrow keys enables the window corner. Press the Enter key for completion.

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Minimize Minimizes the window.

DTG5078 & DTG5274 Data Timing Generator Service Manual

Operating Basics

Table 2--5: Control box menus (cont.)

Items Description

Maximize Maximizes the window.

Close (Alt + F4) Closes current window.

File Menu. The File menu controls the data timing generator file operations.

Table 2--6: File menus

Items Description

Default Setup Restores the data timing generator settings to the defaults.

Open Setup... Opens the saved settings file.

Save Setup Saves current settings, overwriting the old ones.

Save Setup As... Saves current settings in a new file under a name you specify.

Import... Imports a file created with another application. (Data-Listing and

Data-Waveform window)

Exit Exits the DTG5000 software.

Shutdown Exits all the applications including the DTG5000 software and shuts

down Windows, then powers off the DTG5000 series mainframe. This menu cannot be selected in the offline mode.

Edit Menu. The Edit menu shows various pull-down menus depending on the active window or the items specified by cursor. Refer to each window description.

View Menu. The View menu controls the data timing generator display.

Table 2--7: View menus

Items Description

View by Channel Displays data for channel by channel. (Data-Listing, Data-Waveform,

Level, and Timing window)

View by Group Displays data for group by group. (Data-Listing, Data-Waveform,

Level, and Timing window)

Zoom In Doubles the size of the view horizontally, with the cursor position as

the base. (Data-W aveform window)

Zoom Out Halves the size of the view horizontally, with the cursor position as

the base. (Data-W aveform window)

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Operating Basics

Table 2--7: View menus (cont.)

Items Description

View with Timing When the data timing generator displays the data pattern, the Timing

window setup information such as Format, Delay, Pulse Width and Polarity are included. (Data-Waveform window)

Move Up Moves current-selected line upwards one line. (Timing and Level

window)

Moves current group position upwards one line. (Data-Waveform window)

Move Down Moves current-selected line down one line. (Timing and Level

window)

Moves current group position down one line. (Data-Waveform window)

Move Left Moves current group position left by one. (Data-Listing window)

Move Right Moves current group position right by one. (Data-Listing window)

Reset Order Arranges the channels within the current group according to their

numbers. (Timing and Level window)

This command has no influence on viewing in the Data-Listing or Data-Waveform window.

Properties... Specifies the display format such as Radix, Signs, M agnification

display. (Data-Listing and Data-Waveform window)

Specifies how data is listed when viewed by group.

Toolbar Hides or displays the toolbar.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Operating Basics

Settings Menu. The Settings menu allows the selection of setup windows.

Table 2--8: Settings menus

Items Description

Channel Group Displays the Channel Group window which creates/edits groups and

assigns logic and physical channels.

Blocks Displays the Blocks window which creates and edits blocks.

Data-Listing Displays the Data-Listing window which creates and edits patterns.

Data-Waveform Displays the Data-Waveform window which creates and edits

patterns.

Level Displays the Level window which sets the output level.

Timing Displays the Timing window which sets the clock frequency, delay,

long delay on/off.

Time Base Displays the Time Base window which specifies the clock source,

trigger source, and event signals.

Sequence Displays the Sequence window which creates sequence. It also sets

the jump mode and jump timing.

Subsequence Displays the Subsequence window which creates subsequence.

Jitter Generation Displays the Jitter Generation window which sets the jitter generation

parameters.

DC Output Displays the DC Output window which sets the DC Output

parameter.

System Menu. The System menu contains the items related to the data timing generator system.

Table 2--9: System menus

Items Description

Run Starts the signal output. T his is the same as pushing the RUN button

on the front panel.

Stop Stops the signal output. This is the same as pushing the RUN button

on the front panel during the signal output is being performed.

Data Generator Switches to Data Generator mode. This has the same effect as

pushing the front panel PULSE GEN button or clicking Data Gen/ Pulse Gen button on status bar.

Pulse Generator Switches to Pulse Generator mode. This has the same effect as

pushing the front panel PULSE GEN button or clicking Data Gen/ Pulse Gen button of status bar.

Remote Control... Makes the settings for remote control through GPIB.

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Operating Basics

Table 2--9: System menus (cont.)

Items Description

Diagnostics... Executes the internal hardware check.

LCD Panel Check... Executes the LCD operation check.

Front Panel Key Check...

Skew Calibration... Executes the skew calibration.

Level Calibration... Executes the level calibration.

Service Password... Displays the password input dialog box. This menu is provided for

Verifies if the front panel controls are operational. Pressing a key or knob on the front panel to display its name and change the color of the key or knob on the screen. Pressing ENTER key twice to exit the front panel key check.

service engineer. Refer to Service Password on page 6--73.

Options Menu. The Options menu contains the Preference item that is used for the instrument setup.

Table 2--10: Options menu

Items Description

Preference... Startup: You can select a startup state for either default settings or

the most recent settings you u sed.

LCD Brightness: Adjusts the brightness of the display screen of the data timing generator.

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Help Menu. The Help menu contains help topics and password input box.

Table 2--11: Help menus

Items Description

Help Topics... Opens the DTG5000 series online help screen.

Help on Window... Opens the help screen for currently displayed window.

Specifications... Displays the DTG5000 series specifications.

Contacting Tektronix... Displays the contact information for product support.

About DTG... Displays the instrument software version and copyright information.

Toolbar. The toolbar contains the shortcut buttons for the data timing generator. Accessing the toolbar requires a mouse. Two types of toolbars are provided; the common toolbar to all windows and a specific toolbar for several windows. See Figure 2--8.

DTG5078 & DTG5274 Data Timing Generator Service Manual

Operating Basics

To hide or display the toolbar on the screen, select Toolbar from the View menu.

Click to open DC Output window

Click to open Jitter Generation window

Click to open Subsequence window

Click to open Sequence window

Click to open Time Base window

Click to open Timing window

Click to open Level window

Click to open Data-Waveform window

Click to open Data-Listing window

Click to open Blocks window

Click to open Channel Group window

Common toolbar

High/Low setting (Level window only)

Amplitude/Offset setting (Level window only)

Click to display pattern data by group

Click to display pattern data by channel

Level window or Timing window

Click to open Properties dialog

Click to open Move Cursor To dialog

Click to paste the copied item from the clipboard

Click to open Copy to Clipboard dialog

View with Timing (Data-Waveform window only)

Click to zoom out the display (Data-Waveform window only)

Click to zoom in the display (Data-Waveform window only)

Click to display pattern data by group

Click to display pattern data by channel

Data-Listing or Data-Waveform window

Figure 2--8: Toolbar

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Operating Basics

Status Bar. The status bar provides useful information about the state of the data timing generator operation or setup.

Online/Offline

Clock output

Run status

Run status animation

User clock frequency

Operating mode button

Figure 2--9: Status bar

Table 2--12: Status Bar

Items Description

Operating mode button Displays the operating mode (Data Generator mode or Pulse

Generator mode). Click to toggle DG and PG modes.

User Clock frequency Displays the user clock frequency and period set by Timing window.

User clock frequency = H/W clock frequency / Vector rate

Run status animation Displays the sequencer status with animated screen.

Run status Displays the seqeuncer status.

Clock Output Displays the on/off of clock output.

Online/Offline Displays the DTG5000 software execution mode.

Appears only in the offline mode.

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DTG5078 & DTG5274 Data Timing Generator Service Manual

Tektronix DTG5274, DTG5078 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

General Safety Summary

Service Safety Summary

Preface

Introduction

Specifications

Product Description

Specifications

Electrical Specification

Miscellaneous

Operating Information

Installation

Supplying Operating Power

Checking the Environment Requirements

Output Module

Powering On the Data Timing Generator

Setting up Windows 2000

Shutting Down the Data Timing Generator

Backing Up User Files

Installing Software

Operating Basics

Front Panel Controls

Front Panel Connectors

Rear Panel Connectors

Peripherals on the Rear Panel

Display Area and Application Windows