Tektronix TLA7PG2 Service Manual
Service Manual
TLA7PG2
Pattern Generator and Probes
071-0714-01
This document applies to firmware version 1.00
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com
Copyright © Tektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and
are protected by United States copyright laws and international treaty provi sions.
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in Technical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of t he
Commercial Computer Software -- Restricted Rights clause at FAR 52.227-19, as applicable.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information i n this publication supercedes
that in all previously published material. Specifications and price change privi leges reserved.
Tektronix, Inc., 14200 SW Karl Braun Drive, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
WARRANTY
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from
the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will
repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective
product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging
and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid. Tektronix
shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix
service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges
for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance
and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts
by personnel other than Tektronix representatives to install, repair or service the product; b) to repair damage resulting from
improper use or connection to incompatible equipment; or c) to service a product that has been modified or integrated with
other products when the effect of such modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Table of Contents
Specifications
Operating Information
General Safety Summary xi...................................
Service Safety Summary xiii....................................
Preface xv...................................................
Manual Structure xv................................................
Manual Conventions xvi..............................................
Related Manuals xvi.................................................
Contacting Tektronix xvii.............................................
Introduction xix..............................................
Strategy for Servicing xix.............................................
Tektronix Service Offerings xx........................................
Product Description 1--1..............................................
Pattern Generator Module Characteristics 1--2.............................
Probe Characteristics 1--6.............................................
Pattern Generator Module Timing Diagrams 1--25...........................
P6470 and P6471 Probe Environmental Characteristics 1--27..................
Certifications 1--28...................................................
Installation 2--1.....................................................
Operating Environment 2--2...........................................
Applying and Interrupting Power 2--2....................................
Diagnostics 2--3.....................................................
Menus 2--5.........................................................
Online Help 2--5.....................................................
Setups 2--6.........................................................
P6475 Power On/Off Procedure 2--8.....................................
Merging Pattern Generator Modules 2--10.................................
Importing and Exporting Data 2--10......................................
Pattern Editing 2 --11..................................................
Theory of Operation
Module Overview 3--1................................................
Probe Overview 3--4.................................................
Performance Verification
Verification Summary 4--1.............................................
Equipment Required 4--5..............................................
P6475 Variable Probe Test Record 4--6...................................
Setup Procedures 4--7................................................
Functional Verification Procedures 4--13...........................
TLA7PG2 Functional Verification Procedures 4--14.........................
TLA7PG2 Pattern Generator Module Service Manual
i
Table of Contents
Adjustment Procedures
Maintenance
P6470 Functional Verification Procedures 4--40.............................
P6471 Functional Verification Procedures 4--51.............................
P6472 Functional Verification Procedures 4--58.............................
P6473 Functional Verification Procedures 4--66.............................
P6474 Functional Verification Procedures 4--76.............................
P6475 Functional Verification Procedures 4--87.............................
Performance V erification Procedures 4--104.........................
TLA7PG2 Maximum Operating Frequency 4--105............................
P6475 Delay Accuracy Check 4--111......................................
Preparation 6--1.....................................................
Preventing ESD 6--1.................................................
Inspection and Cleaning 6--2...........................................
Removal and Installation Procedures 6--5.........................
Preparation 6--5.....................................................
Removal Procedures for the Pattern Generator 6--7.........................
Installation Procedures for Pattern Generator 6--12..........................
Removal Procedures for Standard Probes 6--13.............................
Removal Procedures for P6475 Variable Probe 6--19.........................
Troubleshooting 6--25...........................................
LEDs 6--25..........................................................
Troubleshooting Procedures 6--25........................................
Diagnostics 6--27.....................................................
Restoring and Reinstalling Software 6--29..........................
Restoring Software 6--29...............................................
Reinstalling Pattern Generator Application Software 6--30....................
Uninstalling Pattern Generator Application Software 6--30....................
Updating Module Firmware 6--31........................................
Repackaging 6--35..............................................
Repackaging Instructions 6--35..........................................
Options and Accessories
Pattern Generator Options 7--1.........................................
P6475 Options 7--1..................................................
Pattern Generator and Probe Optional Accessories 7--2......................
Pattern Generator Standard Accessories 7--2..............................
Probe Options 7--2...................................................
Probe Standard Accessories 7--2........................................
Replaceable Electrical Parts
Diagrams
Replaceable Mechanical Parts
Parts Ordering Information 10--1.........................................
Using the Replaceable Parts List 10--2....................................
ii
TLA7PG2 Pattern Generator Module Service Manual
List of Figures
Table of Contents
Figure 1--1: Clock and strobe timing diagram 1--25..................
Figure 1--2: P6470, P6472, P6473, and P6474 inhibit
timing diagram 1--25............................................
Figure 1--3: P6470, P6472, P6473, and P6474 external
event for inhibit timing diagram 1--26.............................
Figure 1--4: External event for jump timing diagram 1--26............
Figure 1--5: External event for half channel advance
timing diagram 1--26............................................
Figure 1--6: External event for full channel advance
timing diagram 1--27............................................
Figure 1--7: External event for delay to data output for
advance diagram 1--27..........................................
Figure 4--1: Termination Board 4--12..............................
Figure 4--2: External Clock Input connections using a
P6470, P6471, P6472, P6473, or P6474 4--15........................
Figure 4--3: External Clock Input connections using a P6475 4--16.....
Figure 4--4: Internal Clock Frequency connections using
a P6470, P6471, P6472, P6473, or P6474 4--19.......................
Figure 4--5: Internal Clock Frequency connection using
a P6475 4--20..................................................
Figure 4--6: Merge operation connections using P6470,
P6471, P6472, P6473, or P6474 probes 4--24........................
Figure 4--7: Merge operation connections using P6475 probe 4--25.....
Figure 4--8: Merged and unmerged modules in the
Merge Modules window 4--27....................................
Figure 4--9: Timing Chart 4--28...................................
Figure 4--10: TLA7PG2 Deskew function connections
using a P6470, P6471, P6472. P6473, or P6474 4--29..................
Figure 4--11: TLA7PG2 Deskew function connections
using a P6475 probe 4--30........................................
Figure 4--12: TLA7PG2 Inhibit function (by data) connections
using a P6470, P6473, or P6474 probe 4--33.........................
Figure 4--13: TLA7PG2 Inhibit function (by data) connections
using a P6475 probe 4--33........................................
TLA7PG2 Pattern Generator Module Service Manual
iii
Table of Contents
Figure 4--14: Inhibit function (by Event) connections
using a P6470, P6473, or P6474 4--36..............................
Figure 4--15: Inhibit function (by Event) connections
using a P6475 4--37.............................................
Figure 4--16: Internal Clock Frequency connections 4--41.............
Figure 4--17: Sequence and Data Output connections 4--44............
Figure 4--18: P6470 Sequence and Data sample waveforms 4--46.......
Figure 4--19: P6470 Sequence and Data strobed
sample waveforms 4--47.........................................
Figure 4--20: Inhibit function connections 4--48.....................
Figure 4--21: Internal Clock Frequency connections 4--51.............
Figure 4--22: Sequence and Data Output connections 4--54............
Figure 4--23: P6471 Sequence and Data sample waveforms 4--56.......
Figure 4--24: P6471 Sequence and Data strobed
sample waveforms 4--57.........................................
Figure 4--25: Internal Clock Frequency connections 4--59.............
Figure 4--26: Sequence and Data Output connections 4--62............
Figure 4--27: P6472 Sequence and Data sample waveforms 4--64.......
Figure 4--28: P6472 Sequence and Data strobed
sample waveforms 4--65.........................................
Figure 4--29: Internal Clock Frequency connections 4--66.............
Figure 4--30: Sequence and Data Output connections 4--69............
Figure 4--31: P6473 Sequence and Data sample waveforms 4--71.......
Figure 4--32: P6473 Sequence and Data strobed
sample waveforms 4--72.........................................
Figure 4--33: Inhibit function connections 4--74.....................
Figure 4--34: Internal Clock Frequency connections 4--77.............
Figure 4--35: Sequence and Data Output connections 4--80............
Figure 4--36: P6474 Sequence and Data sample waveforms 4--82.......
Figure 4--37: P6474 Sequence and Data strobed
sample waveforms 4--83.........................................
Figure 4--38: Inhibit function connections 4--85.....................
Figure 4--39: Internal Clock Frequency connections 4--88.............
Figure 4--40: Sequence and Data Output connections 4--90............
Figure 4--41: P6475 Sequence and Data sample waveforms 4--92.......
Figure 4--42: P6475 Sequence and Data strobed
sample waveforms 4--93.........................................
Figure 4--43: Inhibit function connections 4--94.....................
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TLA7PG2 Pattern Generator Module Service Manual
Table of Contents
Figure 4--44: P6475 Data Output and CH6 Output
Mode connections 4--97..........................................
Figure 4--45: NRZ data format 4--99...............................
Figure 4--46: RZ data format 4--99................................
Figure 4--47: R1 data format 4--100.................................
Figure 4--48: OR logic 4--101......................................
Figure 4--49: AND logic 4--101.....................................
Figure 4--50: CH6 AND (NOT CH7) 4--102..........................
Figure 4--51: CH6 OR (NOT CH7 ) 4--103...........................
Figure 4--52: Maximum Operating Frequency Connections
using P6470, P6471, P6472, P6473, or P6474 (Example) 4--106..........
Figure 4--53: Maximum Operating Frequency Connections
using a P6475 probe 4--107........................................
Figure 4--54: Timing chart for the Maximum Operating
Frequency check 4--109..........................................
Figure 4--55: Delay Accuracy connections 4--111......................
Figure 6--1: Right cover 6--7.....................................
Figure 6--2: A50 PG board 6--8..................................
Figure 6--3: J1960 cable housing latch 6--9.........................
Figure 6--4: A20 and A50 fuse locations 6--10........................
Figure 6--5: Ejector assembly 6-- 11................................
Figure 6--6: Cushioning pad 6 --12.................................
Figure 6--7: Removing the standard probe cover 6--13................
Figure 6--8: P6470 series termination resistors 6--14..................
Figure 6--9: P6474 series termination resistors 6--15..................
Figure 6--10: P6472 PECL and LVPECL jumper position 6--15........
Figure 6--11: Fuse location for the P6470 and P6471 6--16.............
Figure 6--12: Removing the standard probe fan 6--18.................
Figure 6--13: Removing the P6475 cover 6--19.......................
Figure 6--14: Removing the P6475 fans 6--20........................
Figure 6--15: Disconnect power supply cables 6--21..................
Figure 6-- 16: Remove the power supply board 6--22..................
Figure 6--17: Troubleshooting procedure 6--26......................
Figure 6--18: Flash programming pins 6--31........................
TLA7PG2 Pattern Generator Module Service Manual
v
Table of Contents
Figure 9--1: Function block diagram for the TLA7PG2
Pattern Generator 9--2.........................................
Figure 9--2: Function block diagram for P6470, P6471,
P6472, P6473, and P6474 probes 9--3.............................
Figure 9--3: Function block diagram for P6475 Probe 9--4............
Figure 9--4: Cable diagram for the TLA7PG2
pattern generator 9--5..........................................
Figure 9--5: Cable diagram for the P6475 probe 9--6................
Figure 10--1: TLA7PG2 chassis 10--6..............................
Figure 10--2: TLA7PG2 cables and fuses 10--8......................
Figure 10--3: P6470 probe chassis 10--10............................
Figure 10--4: P6471 probe chassis 10--12............................
Figure 10--5: P6472, P6473, and P6474 probe chassis 10--14............
Figure 10--6: P6475 variable probe chassis 10--16.....................
Figure 10--7: Cables for standard probes 10--17......................
Figure 10--8: Cables for P6475 variable probe 10--18..................
vi
TLA7PG2 Pattern Generator Module Service Manual
List of Tables
Table of Contents
T able 1--1: PG module electrical characteristics,
operational mode 1--2.........................................
T able 1--2: PG module electrical characteristics,
output pattern 1-- 2............................................
T able 1--3: PG module, internal clock 1--3........................
Table 1--4: PG module, external clock input 1-- 3...................
T able 1--5: PG module, event processing 1--3......................
Table 1--6: PG module, intermodule interactions 1--4...............
T able 1--7: PG module, merged PG modules 1--4..................
Table 1--8: PG module, mechanical 1--4...........................
Table 1--9: P6470 TTL/CMOS probe 1-- 6.........................
Table 1--10: P6471 ECL probe 1--9..............................
Table 1--11: P6472 PECL/LVPECL probe 1--11.....................
Table 1--12: P6473 LVDS probe 1--12..............................
Table 1--13: P6474 LVCMOS probe 1--15..........................
Table 1--14: P6475 Variable probe 1--18...........................
Table 1--15: Power Supply (P6475 only) 1--23.......................
T able 1--16: Atmospherics 1--23..................................
Table 1--17: Dynamics characteristics (P6470, P6471,
P6472, P6473, and P6474) 1--23..................................
Table 1--18: Dynamics characteristics (P6475) 1--24..................
Table 1--19: Probe cables 1--24...................................
Table1--20:Twistedleadset 1--24...............................
Table 1--21: Certifications and compliances for P6475 1--25...........
Table 1--22: P6470 TTL/CMOS probe and P6471 ECL probe 1--27....
Table 1--23: Certifications and compliances 1--28....................
T able 4--1: Pattern generator module verification procedures 4--2.....
Table 4--2: Test equipment 4-- 5..................................
Table 4--3: Front panel indicators 4--8............................
Table 4--4: Extended Diagnostic test Items and
faulty component 4--10.........................................
T a b l e 4 -- 5 : D e l a y 4 -- 1 1 2..........................................
Table 6--1: Tools required for part removal 6--6....................
Table 6--2: P6470 series termination resistors 6--14..................
TLA7PG2 Pattern Generator Module Service Manual
vii
Table of Contents
Table 6--3: P6472, P6473, P6474, and P6475 fuse descriptions 6--16....
Table 6--4: P6470 and P6471 fuse descriptions 6--17.................
T a b l e 6 -- 5 : L E D s 6 -- 2 5..........................................
Table 6--6: Restoring software 6--29..............................
Table 7--1: Optional accessories 7--2..............................
T able 7--2: Pattern generator standard accessories 7--2..............
T able 7--3: Probe standard accessories 7--3........................
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TLA7PG2 Pattern Generator Module 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.
While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
ToAvoidFireor
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. These products (P6470, P6471, P6472, P6473, and P6474)
are indirectly grounded through the grounding conductor of the mainframe
power cord. The P6475 is directly grounded through the grounding conductor of
the probe power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
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.
TLA7PG2 Pattern Generator Module Service Manual
ix
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:
CAUTION
Refer to Manual
Protective Ground
(Earth) Terminal
x
TLA7PG2 Pattern Generator Module Service Manual
Service Safety Summary
Only 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, switch off the instrument power, then
disconnect the power cord from the mains power.
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.
TLA7PG2 Pattern Generator Module Service Manual
xi
Service Safety Summary
xii
TLA7PG2 Pattern Generator Module Service Manual
Preface
Manual Structure
This is the service manual for the TLA7PG2 Pattern Generator. The manual
contains information needed to service the pattern generator to the module level.
The following lists contains a brief description of each manual section.
H The Specifications contains a description and a list of the characteristics of
the pattern generator and pattern generator probes.
H The Operating Information includes general information and operating
instructions at the level needed to safely power on and service the pattern
generator.
H The Theory of Operation contains circuit descriptions that support general
service to the module level.
H The Performance Verification contains procedures to verify the functional
operation of the pattern generator and modules as well as procedures to
verify the performance to advertised specifications.
H The Adjustment Procedures normally lists procedures to adjust the instru-
ment to meet advertised specifications. At this printing, there are no
adjustment procedures required for the pattern generator module.
H The Maintenance contains information and procedures for performing
preventive and corrective maintenance of the pattern generator module.
These instructions include cleaning and fault isolation to the module.
H The Options contains information about options and accessories that are
available for the instrument.
H The Replaceable Electrical Parts contains a statement referring you to the
Mechanical Parts List, where both electrical and mechanical parts are listed.
H The Diagrams contains block diagrams and cabling diagrams that are useful
in isolating failed components.
H The Replaceable Mechanical Parts includes a table of all replaceable parts,
their descriptions, and their Tektronix part numbers.
TLA7PG2 Pattern Generator Module Service Manual
xiii
Preface
Manual Conventions
This manual uses certain conventions that you should become familiar with
before doing service.
Some sections of the manual contain procedures for you to perform. To keep
these instructions clear and consistent, this manual uses the following conventions:
H Names of front-panel controls and menus appear in the same case (initial
capitals, all uppercase, and so on.) in the manual as they appear on the
TLA7PG2 Pattern Generator front panel and menus.
H Instruction steps are numbered, unless there is only one step.
H An arrow placed after a menu title directs you to access the indicated
submenu. For example, System → System Configuration is directing you to
select the System menu and then select the submenu named System
Configuration.
Related Manuals
Other documentation for the TLA7PG2 Pattern Generator include:
H The Tektronix Logic Analyzer Family User Manual contains specifications
and information on how to use the TLA7PG2 Pattern Generator.
H A series of probe manuals that provide information for using the probes the
the TLA7PG2 Pattern Generator.
xiv
TLA7PG2 Pattern Generator Module 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*
1-503-627-2400
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.
TLA7PG2 Pattern Generator Module Service Manual
xv
Preface
xvi
TLA7PG2 Pattern Generator Module Service Manual
Introduction
Strategy for Servicing
This manual contains information needed to service the TLA7PG2 Pattern
Generator, as well as general information critical to safe and effective servicing.
To prevent personal injury or damage to the pattern 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 and the Service Safety Summary, near the
beginning of this manual.
H Read Preparation for Use in the Operating Instructions section.
To isolate a failure to a module, use the fault isolation procedures found in
Troubleshooting in the Maintenance chapter of this manual. To move and replace
any failed module, follow the instructions in Removal and Installation Proce-
dures,alsopartoftheMaintenance chapter of this manual. 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.
TLA7PG2 Pattern Generator Module Service Manual
xvii
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 equipped to service the TLA7PG2
Pattern Generator. Tektronix technicians train on Tektronix products; they have
access to the latest information on improvements to the TLA7PG2 Pattern
Generator as well as the latest new options.
Warranty Repair Service
Self Service
Tektronix warrants this product for one year from the date of purchase. (The
warranty is listed in the front of this manual.) Tektronix technicians provide
warranty service at most Tektronix service locations worldwide. The Tektronix
product catalog lists all service locations worldwide.
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. Tektronix ships an updated
tested exchange module from the Beaverton, Oregon service center, typically
within 24 hours. Each module comes with a 90-day service warranty.
xviii
TLA7PG2 Pattern Generator Module Service Manual
Specifications
Product Description
This chapter provides a high-level description of the TLA7PG2 Pattern
Generator module and the associated pattern generator probes. It also lists the
specifications for the modules and probes.
The TLA7PG2 Pattern Generator is a 64-channel, programmable pattern
generator module with sequential control that plugs into the TLA700 series
mainframes, and is intended for use as an integral component of the Tektronix
Logic Analyzer Family series of products.
The pattern generator module provides multichannel signals for use in applications, such as simulation of missing system elements, erroneous signals for stress
testing, or extended analysis for simulating a device under test.
You can put circuits in a desired state and operate the pattern generator at full
speed or single step it through a series of states. The TLA7PG2 Pattern
Generator can also generate infrequently encountered test conditions to test a
hardware design or software program for robustness.
The TLA7PG2 Pattern Generator supports the following probes:
H P6470 TTL/CMOS
H P6471 ECL
H P6472 PECL/LVPECL
H P6473 LVDS
H P6474 LVCMOS
H P6475 Variable
You can have up to four probes on each pattern generator.
Following are some of the key features of the TLA7PG2 Pattern Generator:
H Provides up to 64 channels
H Offers a Jump If condition for all data blocks (maximum of 4000) up to
clock rates of 268 MHz
The TLA7PG2 Pattern Generator can fully test circuits at real clock speeds,
without having to use improvised setups.
TLA7PG2 Pattern Generator Module Service Manual
1- 1
Specifications
Pattern Generator Module Characteristics
All specifications are guaranteed unless noted Typical. Typical characteristics
describe typical or average performance and provide useful reference information.
Specifications that are marked with the n symbol are checked directly (or
indirectly) in the Performance Verifications chapter of this manual.
The specifications apply to all versions of the pattern generator unless otherwise
noted.
The performance limits in this specification are valid with these conditions:
H The modules must be installed in a Tektronix Logic Analyzer Mainframe.
H The module must have had at least a 30 minute warm-up period.
Table 1- 1: PG module electrical characteristics, operational mode
Characteristic Description
Normal Pattern data output is synchronized by the internal/external clock input
Step Pattern data output is synchronized by the software command
Table 1- 2: PG module electrical characteristics, output pattern
Characteristic Description
n Maximum Operating Clock Frequency 134 MHz in Full Channel Mode
268 MHz in Half Channel Mode
Pattern length 40 to 262,140 (218-- 4) in Full Channel Mode (standard)
80 to 524,280 (2
40 to 1,048,572 (2
80 to 2,097,144 (2
Number of channels 64 channels in Full Channel Mode
32 channels in Half Channel Mode
The pattern memory for the following data channel will be shared with strobe
control/internal inhibit control
Probe D data output channel Control
D0:0 STRB0
D0:1 STRB1
19
-- 8) in Half Channel Mode (standard)
20
-- 4) in Full Channel Mode (option 1M or PowerFlex upgrade)
21
-- 8) in Half Channel Mode (option1M or PowerFlex upgrade)
1- 2
D0:2 STRB2
D0:3 STRB3
D0:4 Inhibit probe A
TLA7PG2 Pattern Generator Module Service Manual
Table 1- 2: PG module electrical characteristics, output pattern (Cont.)
Characteristic Description
D0:5 Inhibit probe B
D0:6 Inhibit probe C
D0:7 Inhibit probe D
Sequences Maximum 4,000
Number of Blocks Maximum 4,000
Number of Sub-Sequences Maximum 50
Sub-Sequences Maximum 256 steps
Repeat Count 1 to 65,536 or infinite
Table 1- 3: PG module, internal clock
Specifications
Characteristic Description
Clock Period 2.0000000 s to 7.4626865 ns in Full Channel Mode
1.0000000 s to 3.7313432 ns in Half Channel Mode
Period Resolution 8 digits
Table 1- 4: PG module, external clock input
Characteristic Description
Clock Rate DC to 134 MHz in Full Channel Mode
DC to 268 MHz in Half Channel Mode
Polarity Normal or Invert
Threshold
Range --2.56 V to +2.54 V
Resolution 20 mV
Input Impedance 1kΩ terminated to GND
Sensitivity 500 mV
p-p
Table 1- 5: PG module, event processing
Characteristic Description
Event Action Advance, Jump and Inhibit
Number of Event Inputs 8 External Event Inputs (2 per each probe)
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Specifications
Table 1- 5: PG module, event processing (Cont.)
Characteristic Description
Number of Event Definitions 8
(A maximum of 256 event input patterns can be OR’d to define an event)
Event Mode
for Advance Edge or Level
for Jump Edge or Level
Event Filter None or 50 ns
Table 1- 6: PG module, intermodule interactions
Characteristic Description
Signal Input Input from backplane
Selectable from Signal 1, 2, 3, and 4
Used to define the Event
Signal Output Output to backplane
Selectable from Signal 1, 2, 3, and 4
Specified as High or Low in each Sequence line
Table 1- 7: PG module, merged PG modules
Characteristic Description
Number of modules that can be merged
together
External Event Input for merged module For Jump and Advance, only the External Event Input of the leftmost module is used;
5
for Inhibit, each module uses its own External Event Input as a source
Table 1- 8: PG module, mechanical
Characteristic Description
Slot width Requires 2 mainframe slots
Weight
(Typical)
Overall dimensions (excluding connectors)
Height 10.32 in (262 mm)
Width 2.39 in (61 mm)
2.5kg(5lbs4oz)
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TLA7PG2 Pattern Generator Module Service Manual
Table 1- 8: PG module, mechanical (Cont.)
Characteristic Description
Depth 14.7 in (373 mm)
Mainframe interlock 1.4 ECI keying is implemented
Specifications
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Specifications
loa
d:10k
Ω+1
5pf,sampl
att
8
Probe Characteristics
Table 1- 9: P6470 TTL/CMOS probe
All specifications are guaranteed unless noted Typical. Typical characteristics
describe typical or average performance and provide useful reference information.
Specifications that are marked with the n symbol are checked directly (or
indirectly) in the Performance Verifications chapter of this manual.
The specifications apply to all versions of the pattern generator probes unless
otherwise noted.
The performance limits in this specification are valid with these conditions:
H The probes must be installed in a TLA7PG2 Pattern Generator.
H The probes must have had at least a 30 minute warm-up period.
All timing values are specified at the probe connector under the conditions listed below, unless otherwise noted:
Output Voltage setting: +5 V
Series Termination Resistor: 75 Ω
Load: 510 Ω +50pF
Characteristic
Maximum Clock Frequency
(with series termination resistor: 75 Ω)
Maximum Clock Frequency
(with series termination resistor: 75 Ω,
eoutputp
bit counter)
Typical
Output Level (VCC) 2.0Vto5.5V,25mVstep,into1MΩ
Maximum Resistive Load 220 Ω
Maximum Capacitive Load 50 pF
Output Type 74LVC541A for Data Output
Series Termination Resistor 75 Ω standard. 43, 100 and 150 Ω as optional accessories
ern:
Description
Output Level (Vcc) Full Channel mode Half Channel mode
Vcc ≤ 3.3 V
3.3 V < Vcc ≤5V 62.5 MHz 125 MHz
Vcc > 5 V 52.5 MHz 105 MHz
Output Level (Vcc) Full Channel mode Half Channel mode
Vcc ≤5.5 V
74LVC244A for Clock/Strobe Output
(18 pin DIP socket)
134 MHz 268 MHz
134 MHz 268 MHz
Supported Channel Mode Half and Full
Number of External Inhibit Inputs 1
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TLA7PG2 Pattern Generator Module Service Manual
Table 1- 9: P6470 TTL/CMOS probe (Cont.)
All timing values are specified at the probe connector under the conditions listed below, unless otherwise noted:
Output Voltage setting: +5 V
Series Termination Resistor: 75 Ω
Load: 510 Ω +50pF
Characteristic Description
Rise/Fall Time
(20% to 80%
load: 1 MΩ +< 1 pF)
Typical
Clock/Strobe Output
Rise 640 ps
Fall 1.1 ns
Data Output
Rise 680 ps
Fall 2.9 ns
Specifications
Rise/Fall Time
(20% to 80%
load: 510 Ω +51pF)
Typical
Data Output Skew
Typical
Data Output to Strobe Output Delay
Typical
Data Output to Clock Output Delay
Typical
External Clock Input to Clock Output Delay
Typical
External Inhibit Input to Output Enable Delay
Typical
External Inhibit Input to Output Disable Delay
Typical
Probe D Data Output to Output Enable Delay
(for Internal Inhibit) Typical
Clock/Strobe Output
Rise 6.5 ns
Fall 6.3 ns
Data Output
Rise 5.2 ns
Fall 4.5 ns
< 570 ps between all data output pins of all modules in the mainframe after
intermodule skew is adjusted manually
< 480 ps between all data output pins of all probes of single module
< 440 ps between all data output pins of single probe
+ 1.7 ns when strobe delay set to zero. (Td3 in Figure 1--1 on page 1--25)
+2.4 ns (Td2 in Figure 1--1 on page 1--25)
61 ns (Td1 in Figure 1--1 on page 1--25)
34 ns for Data Output (Td4 in Figure 1--2 on page 1--25)
86 ns for Data Output (Td5 in Figure 1--2 on page 1--25)
7 ns for Data Output (Td4 in Figure 1--2 on page 1--25)
Probe D Data Output to Output Disable Delay
(for Internal Inhibit) Typical
External Event Input to Clock Output Setup
(for inhibit)
(event-filter: off) Typical
External Event Input and Inhibit Input
Input Type
Minimum Pulse Width
8 ns for Data Output (Td5 in Figure 1--2 on page 1--25)
Full channel mode: 1.5 clocks + 240 ns (Td6 in Figure 1--3 on page 1--25)
Half channel mode: 2 clocks + 240 ns
74LVC14A, Positive True, 1 kΩ to GND
200 ns (event filter: off)
TLA7PG2 Pattern Generator Module Service Manual
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Specifications
Table 1- 9: P6470 TTL/CMOS probe (Cont.)
All timing values are specified at the probe connector under the conditions listed below, unless otherwise noted:
Output Voltage setting: +5 V
Series Termination Resistor: 75 Ω
Load: 510 Ω +50pF
Characteristic Description
External Event Input Delay to Data Output for
Advance
External Event Input
Number of Inputs
Setup Time of Event Typical
Input for Event Jump
230 ns to 330 ns + 1.5 to 2.5 CLK2 (Td12 in Figure 1--7 on page 1--27)
(CLK2 is from 2.5 ns to 5 ns when Internal Clock is used. It is the same as one clock
period when the External Clock is used.)
2
Half Channel Mode
54 to 61 clocks + 240 ns before the next block
Full Channel Mode
27.5 to 31 clocks + 240 ns before the next block
(Td9 in Figure 1--4 on page 1--26)
Setup Time of Event Input for Event Advance
Typical
Mainframe External Signal Input to PG Probe
data output
for Advance
via Signal 1, 2 Typical
via Signal 3, 4 Typical
for Inhibit
via Signal 1, 2 Typical
via Signal 3, 4 Typical
PG Probe Clock Output to Mainframe External
Signal Output
via Signal 1, 2 Typical
via Signal 3, 4 Typical
Number of Data Outputs 16 in Full Channel Mode
In Half Channel Mode, 240 ns before the rising edge of 5th clock output pulse from
the last of the previous block (Td10 in Figure 1--5 on page 1--26)
In Full Channel Mode, 240 ns before the rising edge of 3rd clock output pulse from the
last of the previous block (Td11 in Figure 1--6 on page 1--27)
200 ns to 300 ns + 1.5 to 2.5 CLK2
230 ns to 330 ns + 1.5 to 2.5 CLK2
(CLK2 is from 2.5 ns to 5 ns when the Internal Clock is used. It is the same as one
clock period when the External Clock is used)
100 ns to 200 ns + 2 to 3 CLK (Half Channel Mode)
100 ns to 200 ns + 1.5 to 2.5 CLK (Full Channel Mode)
130 ns to 230 ns+ 2 to 3 CLK (Half Channel Mode)
130 ns to 230 ns + 1.5 to 2.5 CLK (Full Channel Mode)
18 ns -- 5 CLK (Half Channel Mode)
18 ns -- 3 CLK (Full Channel Mode)
29 ns -- 5 CLK (Half Channel Mode)
29 ns -- 3 CLK (Full Channel Mode)
8 in Half Channel Mode
Number of Clock Outputs 1
Number of Strobe Outputs 1
Number of External Event Inputs 2
1- 8
(Only one Clock Output or Strobe Output can be enabled at one time per probe)
TLA7PG2 Pattern Generator Module Service Manual
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