Tektronix TLA7PG2 User manual

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Instruction Manual
TLA7PG2
Pattern Generator Probes
071-1017-01
*P071101701*
071101701
This document supports Tektronix Logic Analyz-
er Family Software Version 4.1 and Tektronix Pat-
tern Generator Software Version 1.3 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.
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, Inc., P.O. Box 500, Beaverton, OR 97077
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 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.

TLA7PG2 Pattern Generator Probes Instruction Manual i
Table of Contents
General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documentation ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting Tektronix x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Basics
Product Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Lead Sets and Cables 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Standard Probes 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the P6475 Probe 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference
Probe Connectors and Signal Names 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Overview 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Dimensions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
P6475 Installation Requirements 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input/Output Circuits 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing Diagrams 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
Functional Check 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Cleaning 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Static Discharge Information 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Probes 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repackaging 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
ii TLA7PG2 Pattern Generator Probes Instruction Manual
List of Figures
Figure 1: Standard probe, lead sets, and probe cable 2. . . . . . . . . . . .
Figure 2: P6475 variable probe, lead sets, power cord,
and probe cable 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3: P6470 and P6474 output connector pin assignments 7. . . . .
Figure 4: P6471 output connector pin assignments 7. . . . . . . . . . . . . .
Figure 5: P6472 output connector pin assignments 8. . . . . . . . . . . . . .
Figure 6: P6473 output connector pin assignments 8. . . . . . . . . . . . . .
Figure 7: P6475 output connector pin assignments 8. . . . . . . . . . . . . .
Figure 8: Strobe output pulse pattern 11. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9: P6475 Variable probe output pulse pattern 11. . . . . . . . . . . .
Figure 10: P6475 CH6 output example 12. . . . . . . . . . . . . . . . . . . . . . . .
Figure 11: P6475 CH6 output mode pulse patterns 13. . . . . . . . . . . . . .
Figure 12: P6470, P6471, P6472, P6473 and P6474
probe dimensions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 13: P6475 Variable probe dimensions 16. . . . . . . . . . . . . . . . . . .
Figure 14: P6470 input/output circuit 18. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 15: P6471 input/output circuit 19. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 16: P6472 input/output circuit 20. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 17: Signaling sense 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 18: P6474 input/output circuit 22. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 19: Clock and strobe timing diagram 22. . . . . . . . . . . . . . . . . . .
Figure 20: P6470, P6472, P6473, and P6474 inhibit
timing diagram 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 21: P6470, P6472, P6473, and P6474 external event
for inhibit timing diagram 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 22: External event for jump timing diagram 23. . . . . . . . . . . . .
Figure 23: External event for half channel advance
timing diagram 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 24: External event for full channel advance
timing diagram 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 25: External event for delay to data output
for advance diagram 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
TLA7PG2 Pattern Generator Probes Instruction Manual iii
Figure 26: Removing the standard probe cover 46. . . . . . . . . . . . . . . . .
Figure 27: P6470 series termination resistors 47. . . . . . . . . . . . . . . . . . .
Figure 28: P6474 series termination resistors 48. . . . . . . . . . . . . . . . . . .
Figure 29: P6472 PECL and LVPECL jumper position 48. . . . . . . . . .

Table of Contents
iv TLA7PG2 Pattern Generator Probes Instruction Manual
List of Tables
Table 1: Inputs and outputs of pattern generator probes 9. . . . . . . .
Table 2: P6475 Variable probe installation requirements 17. . . . . . . . .
Table 3: P6470 TTL/CMOS probe 25. . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4: P6471 ECL probe 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5: P6472 PECL/LVPECL probe 30. . . . . . . . . . . . . . . . . . . . . . . .
Table 6: P6473 LVDS probe 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 7: P6474 LVCMOS probe 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 8: P6475 Variable probe 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 9: Power Supply (P6475 only) 42. . . . . . . . . . . . . . . . . . . . . . . . . .
Table 10: Atmospherics 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 11: Dynamics characteristics (P6470, P6471,
P6472, P6473, P6474) 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 12: Dynamics characteristics (P6475) 43. . . . . . . . . . . . . . . . . . . .
Table 13: Probe cables 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 14: Twisted lead set 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 15: Certifications and compliances for P6475 43. . . . . . . . . . . . .
Table 16: P6470 series termination resistors 47. . . . . . . . . . . . . . . . . . .

TLA7PG2 Pattern Generator Probes Instruction Manual v
General Safet Summar
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.
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 Circuitr . 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 Dr .
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
To Avoid Fire or
Personal Injur

General Safety Summary
vi TLA7PG2 Pattern Generator Probes Instruction Manual
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on 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.
S mbols on the Product. The following symbols may appear on the product:
CAUTION
Refer to Manual
Protective Ground
(Earth) Terminal
S mbols and Terms

TLA7PG2 Pattern Generator Probes Instruction Manual vii
Service Safet Summar
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.

General Safety Summary
viii TLA7PG2 Pattern Generator Probes Instruction Manual

TLA7PG2 Pattern Generator Probes Instruction Manual ix
Preface
This document provides information on using and servicing the TLA7PG2
probes.
Related Documentation
In addition to these probe instructions, the following documentation is available
for your Tektronix Logic Analyzer Family:
HThe TLA7PG2 Pattern Generator and Probes Service Manual provides
service information for the pattern generator and pattern generator probes.
HThe Tektronix Logic Analyzer Family User Manual provides overall user
information for the Tektronix logic analyzers.
HThe online help provides information for the probes and pattern generator
user interfaces and the Pattern Generator Programmatic Interface (PPI).
HA series of instruction manuals for microprocessor support provides
operating and service instructions for the individual microprocessor support
packages that are available for use with the logic analyzer.
HProbe instructions accompany the logic analyzer modules to provide
operating and service information.
HThe Tektronix Logic Analyzer Family Training Manual provides training
exercises to help you learn key features of the logic analyzer. The training
manual is designed to be used with the TLA7QS training board.
HA series of service manuals are available that provide performance verifica-
tion procedures and board-level service information for major components
of the logic analyzer.

Preface
xTLA7PG2 Pattern Generator Probes Instruction Manual
Contacting Tektronix
Phone [phone]*
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: T[email protected]
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 Probes Instruction Manual 1
Operating Basics
This section provides a brief description of the TLA7PG2 probes and informa-
tion on connecting the probes from the pattern generator module to the target
system.
Product Description
The pattern generator probes provide multichannel signals to simulate signals in
a test environment. Following are descriptions of the probes discussed in this
manual:
The P6470 provides TTL or CMOS signals to the target system and contains 16
data outputs, 1 clock output, and 1 strobe output. The Vcc output driver is
adjustable from 2.0 V to 5.5 V. Figure 14 on page 18 shows the P6470 input/out-
put circuit.
The P6470 probe comes standard with 75 termination resistors packs. You can
change the resistor packs to provide impedance matching for the target system.
Refer to Removing the Probe Cover on page 46 and Changing the Series
Termination Resistors on page 47.
The P6471 ECL pattern generator probe provides ECL signals to the target
system and contains 16 data outputs, 1 clock output, and 1 strobe output. Figure
15 on page 19 shows the P6471 input/output circuit.
The P6472 provides PECL/LVPECL signals to the target system and contains 8
data outputs, 1 clock output, and 1 strobe output. You can select PECL or
LVPECL by moving a jumper in the probe. See Configuring the P6472 for
PECL or LVPECL on page 48. Figure 16 on page 20 shows the P6472 input/out-
put circuit.
The P6473 provides LVDS signals to the target system and contains 16 data
outputs, 1 clock output, and 1 strobe output. All inputs and outputs are LVDS
level.
The P6474 provides LVCMOS signals to the target system and contains 16 data
outputs, 1 clock output and 1 strobe output. Figure 18 on page 22 shows the
P6474 input/output circuit.
The Vcc of the output driver is adjustable from 1.2 V to 3.3 V.
P6470 TTL/CMOS
P6471 ECL
P6472 PECL/LVPECL
P6473 LVDS
P6474 LVCMOS

Operating Basics
2TLA7PG2 Pattern Generator Probes Instruction Manual
The P6474 comes standard with 75 termination resistors packs. You can
change the resistor packs to provide impedance matching for the target system.
Refer to Removing Probe the Cover on page 46 and Changing the Series
Termination Resistors on page 47.
The P6475 provides logic family signals such as ECL, TTL/CMOS, and
PECL/LVPECL and contains 8 data outputs and one clock output. The P6475
also supports variable delay (0 to 50 ns) for two channels (CH6 and CH7).
When using the P6475 probe with a P6470 (TTL/CMOS), P6473 (LVDS), or
P6474 (LVCMOS) probe, it is recommended that you use a Time Alignment
Cable (P/N 012-A223-00) in conjunction with the TLA7PG2 Pattern Generator
Module. The Time Alignment Cable ensures that the P6475 and the P6470,
P6473, or P6474 probes are time aligned and can be used together. Please order
one Time Alignment Cable (P/N 012-A223-00) for each P6470, P6473, and
P6474 probe.
Probe Lead Sets and Cables
Figure 1 shows a typical pattern generator probe with the lead sets and probe
cable. The probe cable is included with the TLA7PG2 pattern generator module.
Refer to Probe Connectors and Signal Names, beginning on page 7, for probe
connector information.
Probe cable
Lead sets
Front panel
Figure 1: Standard probe, lead sets, and probe cable
P6475 Variable

Operating Basics
TLA7PG2 Pattern Generator Probes Instruction Manual 3
Figure 2 shows the P6475 variable probe, lead sets and probe cable. The probe
cable is included with the TLA7PG2 pattern generator module.
Note: The power
switch is located
on the rear panel
Front panel
Lead sets
Connector
Figure 2: P6475 variable probe, lead sets, power cord, and probe cable
Connecting the Standard Probes
To connect the probes to the logic analyzer and to the target system, do the
following steps:
1. Power off the logic analyzer and the target system before connecting the
pattern generator probes.
2. Connect the lead sets to the target system.
3. Connect the standard probe as shown in Figure 1. The probe cable is
reversible. You can connect the probe cable in either direction.

Operating Basics
4TLA7PG2 Pattern Generator Probes Instruction Manual
4. Connect the probe to the pattern generator module on the logic analyzer.
CAUTION. To prevent damage to the pattern generator module or probe, do not
connect or disconnect the pattern generator cables to or from the pattern
generator module or probe while the logic analyzer is powered on. The
recommended DUT (Device Under Test) and pattern generator power on/off
sequence is as follows:
Power on the DUT first, then power on the pattern generator. Power off the
pattern generator and then power off the DUT.
Although the pattern generator probe cable appears to be a SCSI cable, it is not
compatible with a SCSI cable; do not use a SCSI cable with the pattern
generator module, or use the pattern generator probe cable with a SCSI
instrument.
The probe is fragile; handle it carefully.
Connecting the P6475 Probe
Do the following steps to connect the P6475 to the logic analyzer, the target
system, and to the power source:
1. Power off the logic analyzer and the target system before connecting the
pattern generator probes.
2. Connect the lead sets to the target system.
3. Connect the P6475 as shown in Figure 2. The probe cable is reversible;
either end can be connected to the P6475.
4. Connect the P6475 power cord.
5. Connect the probe to the pattern generator module on the logic analyzer.
P6475 Connections

Operating Basics
TLA7PG2 Pattern Generator Probes Instruction Manual 5
Follow the procedures below to power on and power off the P6475 variable
probe:
1. Power on the DUT
2. Power on the P6475
3. Power on the TLA
1. Power off the TLA
2. Power off the P6475
3. Power off the DUT
Power On/Off