Tektronix P68XX Service manual

Instruction Manual

P68XX Series Logic Analyzer Probes

071-1059-04

There are no current European directives that apply to this product. This product provides cable and test lead connections to a test object of electronic measuring and test equipment.

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

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material . Specifica tions and price change privileges reserved.

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

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. MagniVu, iView, PatGenVu, PowerFlex, QuickStart, and TLAVu are unregistered 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 dat e 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 ce nter is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for produc ts returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or im proper or inadequate maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair dama ge resulting from attempts by personnel other than Tektronix representatives to install, re pair or service the product; b) to repair damage resulting from improper use or conne ction 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 W ARRANTY 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.

Operating Basics

General Safety Summary vii...................................

Preface ix...................................................

Related Documentation ix...........................................

CommonlyUsedTerms x...........................................

Contacting Tektronix xiii.............................................

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

P6810 General Purpose Probe 1--2......................................

P6810 Leadset Adapters and Accessories 1--3.............................

P6860 High-Density Probe 1--5.........................................

P6864 High-Density 4X Probe 1--6......................................

P6880 High-Density Differential Probe 1--8...............................

Mictor-on-PCB to P6860 Compression Adapter 1--9........................

Compression-on-PCB to P6434 Mictor Adapter 1--10........................

Attaching Probe Labels 1--12.....................................

Connecting the Probes to the Logic Analyzer 1--13...................

Cleaning the P686x and P6880 Compression Footprints 1--14.........

Cleaning the P686x and P6880 Probe Heads 1--14...................

Storing the P686x and P6880 Probe Heads 1--15.....................

Connecting the Probes to the Target System 1--16....................

Connecting the P6810 General Purpose Probe 1--16.........................

Connecting the P686x High Density and P6880 Differential Probes 1--18........

Installing the Correct Elastomer Holder 1--18..............................

Connecting the Mictor-on-PCB to P6860 Compression Adapter

(Applies to P6860 Probe Only) 1--21..................................

Connecting the Compression-on-PCB to P6434 Mictor Adapter 1--21...........

Reference

Designing an Interface Between the P68xx Probes and a

T arget System 2--1.........................................

Signal Fixturing Considerations 2--1.....................................

Signal Names 2--6...................................................

Land Footprints 2--22..................................................

Mechanical Considerations 2 --27........................................

Physical Attachment Requirements for the P6810 Probe 2--31.................

Physical Attachment Requirements for the P686x and P6880 Probes 2--31.......

Physical Attachment Requirements for the Compression-on-PCB to P6434

Mictor and Mictor-on-PCB to P6860 Compression Adapters 2--33..........

Electrical Considerations 2--33..........................................

Transmission Lines 2--34...............................................

P6810 General Purpose Probe Load Model 2--34............................

P686x High-Density and P6880 High-Density Differential Probes

Load Model 2--36.................................................

P68XX Series Logic Analyzer Probes Instruction Manual

Table of Contents

Specifications

Maintenance

Replaceable Parts

Index

Mechanical and Electrical Specifications 3--1......................

Probe Calibration 4--1.........................................

Service Strategy 4--1...........................................

Functional Check 4--1..........................................

Inspection and Cleaning 4--2....................................

Repackaging Instructions 4--2...................................

Parts Ordering Information 5--1.................................

Using the Replaceable Parts List 5--1.............................

Mfr. Code to Manufacturer Cross Index 5--2..............................

P68XX Series Logic Analyzer Probes Instruction Manual

List of Figures

Table of Contents

Figure i: Differential input amplitude x.........................

Figure ii: Probe example xi....................................

Figure 1--1: P6810 General Purpose probe 1--2.....................

Figure 1--2: P6810 probe leadset adapters and accessories 1--4........

Figure 1--3: P6860 High-Density probe 1--5........................

Figure 1--4: P6864 High-Density 4X probe 1--6.....................

Figure 1--5: P6880 High-Density Differential probe 1--8..............

Figure 1--6: Mictor-on-PCB to P6860 Compression adapter 1--10.......

Figure 1--7: 34-Channel Compression-on-PCB to P6434 Mictor

adapter 1--11...............................................

Figure 1--8: Clearance for probe connection using

Compression-on-PCB to P6434 Mictor adapter 1--12..............

Figure 1--9: Connecting the probes to the logic analyzer 1--13..........

Figure 1--10: Cleaning the probe heads 1--15........................

Figure 1--11: Storing the probe heads 1--16.........................

Figure 1--12: Connecting the P6810 probe to the target system 1--17....

Figure 1--13: Press-in Nuts installation 1--18........................

Figure 1--14: Connecting the P686x and P6880 probes to the

target system 1--20..........................................

Figure 2--1: P6810 General-Purpose probe land footprint 2--23........

Figure 2--2: P686x High-Density probe land footprint 2--24............

Figure 2 --3: High-Density probe land footprint in a typical

pass-through signal path layout configuration 2--25..............

Figure 2--4: Example layouts of the High-Density compression

compared to the mictor land footprints 2--25....................

Figure 2--5: P6880 Differential probe land footprint 2--26.............

Figure 2 --6: High-Density Differential probe land footprint in a

typical pass-through signal path layout configuration 2--27........

Figure 2--7: Land footprint requirements for the P686x and P6880

probes (top view) 2--28.......................................

Figure 2 --8: Land footprint requirements for the 34 channel

Compression-on-PCB to P6434 Mictor adapter 2-- 30.............

Figure 2 --9: Land footprint requirements for the 17 channel

Compression-on-PCB to P6434 Mictor adapter 2--30..............

P68XX Series Logic Analyzer Probes Instruction Manual

iii

Table of Contents

Figure 2--10: Physical attachment requirements for the

P6810 probe 2--31...........................................

Figure 2--11: Nut Bar design 2--32.................................

Figure 2--12: Press-in Nut design 2--33.............................

Figure 2 --13: Single podlet load model 2--34.........................

Figure 2--14: Eight-channel leadset (barrel connectors) 2--35..........

Figure 2--15: One-channel leadset (barrel connector) 2--35............

Figure 2 --16: Eight-channel differential leadset 2--35.................

Figure 2 --17: High-Density and High-Density Differential probe

load model 2--36............................................

Figure 2--18: Mictor-on-PCB to Compression adapter load model 2--37.

Figure 2--19: Compression-on-PCB to P6434 Mictor adapter

load model 2--37............................................

Figure 5--1: P6810 General Purpose probe accessories 5--3...........

Figure 5--2: P6860 High-Density probe accessories 5--4..............

Figure 5--3: P6864 High-Density 4X probe accessories 5--5...........

Figure 5--4: P6880 High-Density Differential probe accessories 5--6....

Figure 5--5: Optional accessories 5--7.............................

P68XX Series Logic Analyzer Probes Instruction Manual

List of Tables

Table of Contents

Table 2--1: Logic analyzer clock and qualifier availability 2--2........

T able 2--2: 2X Demultiplexing source-to-destination

channel assignments 2--4....................................

T able 2--3: 4X Demultiplexing source-to-destination

channel assignments 2--5....................................

Table 2--4: P6810 Probe signal connections on 136 and

102 channel modules for probe #4 and probe #3 2--7.............

Table 2--5: P6810 Probe signal connections on 102 and

136 channel modules for probe #2 and probe #1 2--8.............

Table 2--6: P6810 Probe signal connections on 68 and

34 channel modules 2--9.....................................

Table 2--7: P6860 High-Density Probe channel mapping on

136 and 102 channel modules 2--10...........................

Table 2--8: P6860 High-Density Probe channel mapping on

68 and 34 channel modules 2--11.............................

Table 2--9: P6864 High-Density 4X Probe channel mapping on

34, 68, 102 and 136 channel mod ules 2 --12......................

Table 2--10: P6880 High-Density Differential Probe channel mapping

on 136 and 102 channel modules for probe #4 and probe #3 2--13..

Table 2--11: P6880 High-Density Differential Probe channel mapping

on 136 and 102 channel modules for probe #2 and probe #1 2--14..

Table 2--12: P6880 High-Density Differential Probe channel mapping

on 68 and 34 channel modules 2--15...........................

Table 2--13: Recommended Compression-on-PCB to P6434 Mictor

adapter and Mictor-on-PCB to Compression adapter channel

mapping for 136 and 102 channel modules 2--16.................

Table 2--14: Recommended Compression-on-PCB to P6434 Mictor

adapter and Mictor-on-PCB to Compression adapter channel

mapping for 68 channel module 2--18..........................

Table 2--15: Recommended Compression-on-PCB to P6434 Mictor

adapter and Mictor-on-PCB to Compression adapter channel

mapping for 34 channel module 2--20..........................

Table 2--16: Characteristics 2--34.................................

T able 3--1: Electrical and mechanical specifications 3--1.............

T able 3--2: Environmental specifications 3--2......................

P68XX Series Logic Analyzer Probes Instruction Manual

Table of Contents

P68XX Series Logic Analyzer Probes Instruction 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

Connect and Disconnect Properly. Connect the probe output to the measurement instrument before connecting the probe to the circuit under test. Disconnect the probe input and the probe ground from the circuit under test before disconnecting the probe from the measurement instrument.

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 apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.

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 instructions for details on

installing the product so it has proper ventilation.

P68XX Series Logic Analyzer Probes Instruction Manual

vii

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

viii

P68XX Series Logic Analyzer Probes Instruction Manual

Preface

Commonly Used Terms

H The P6417 & P6418 Logic Analyzer Probes Instructions provides instruc-

tions for using the P6417 and P6418 Probes.

H The P6419 Logic Analyzer Probe Instructions provides instructions for using

P6419 Probes.

Refer to the following list of commonly used terms throughout the manual.

Compression Footprint

Differential Input

Amplitude Definition

A connectorless, solderless contact between your PCB and the P6860 and P6880 Probes. Connection is obtained by applying pressure between your PCB and the probe through a Z-axis elastomer.

For differential signals, the magnitude of the difference voltage V (and Vmin-V

Differential equivalent signal input (300 mV swing) as viewed by the logic analyzer and the analog probe output**.

TH = OV

* Note: For differential inputs, the module threshold should be set to OV (assuming no

common mode error).

** Note: See online help for further analog output details.

max) must be greater than or equal to 150 mV. Refer to Figure i.

Differential input (150 mV minimum swing each side, --2.5 V maximum)

Vmax

V=V

OV Difference

Vmin

OV Difference

max-Vmin

1.15 V

150 mV

--150 mV

Figure i: Differential input amplitude

Functional Check

Procedure

Keepout Area

Functional check procedures verify the basic functionality of the probes by confirming that the probes recognize signal activity at the probe tips.

The area of the printed circuit board in which only probe components may be mounted.

P68XX Series Logic Analyzer Probes Instruction Manual

Preface

Module

Module End

PCB

Podlet

Podlet Holder

Probe

The unit that plugs into a mainframe which provides instrument capabilities such as logic analysis.

The end of the probe which plugs into the module unit.

An acronym for Printed Circuit Board; also known as Etched Circuit Board (ECB).

A circuit contained in a flex lead and attached to a probe which provides square-pin connections to the circuit under test for one data acquisition channel and a reference pin.

A removable clip that groups eight individual podlets into a single 8-wide P6810 Probeassembly.Thisprovideseasewhenconnectingtoarowof2x82.54mm (0.100 in) square pins.

The device that connects a module with a target system.

Figure ii: Probe example

Probe Adapter

P68XX Series Logic Analyzer Probes Instruction Manual

A device that connects the LA module probe to a target system.

Module end

Way station

Probe head

Preface

Probe Head

SMT KlipChip

Way Station

Z-axis eLastomer

The end of the probe (see Figure ii) that connects to the target system or probe adapter.

An interface device for attaching logic analyzer probes to components with a maximum lead diameter of 2.413 mm (0.095 in) and a stackable on lead centers of 1.27 mm (0.050 in).

An intermediate probe part (see Figure ii) used to connect the heads of the P6810 and P6880 Probes to a single ribbon cable.

Silicone-based material containing vertical wires that conduct only in the z-axis.

xii

P68XX Series Logic Analyzer Probes Instruction 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.

P68XX Series Logic Analyzer Probes Instruction Manual

xiii

Preface

xiv

P68XX Series Logic Analyzer Probes Instruction Manual

Operating Basics

Product Description

This section provides a brief description of the Tektronix P68xx Logic Analyzer Probes and adapters, information on attaching color-coded probe labels, and probe and adapter connection instructions from the logic analyzer to the target system.

The P68xx Logic Analyzer Probes connect a TLA7Axx Series Logic Analyzer module to a target system. The P6810, P6860 and P6880 probes consists of 34 channels, while the P6864 probe consists of 17 channels. You can connect the P6810 probe to the target system through podlet holders or leadsets. In addition, a variety of leadsets, SMT KlipChips and adapters aid in your connection to the target system. The P6860 probe can be connected through the use of the compression land pattern or a Mictor connector using the Mictor-on-PCB to P6434 to Compression adapter. The P6880 probe is designed for connection to the compression land pattern only configured for differential signals. The P6880 is not compatible with either the Mictor-on-PCB to P6860 probe adapter or the Compression-on-PCB to P6434 probe adapter. The P6864 probe can be connected through the use of the compression land pattern. Note that the P6864 is designed to minimize the needed area on the circuit board for connections when using the 4X clocking mode in the logic analyzer module.

P68XX Series Logic Analyzer Probes Instruction Manual

1- 1

Operating Basics

P6810 General Purpose

Probe

The P6810 Probe is a 34-channel, general purpose probe (see Figure 1--1).

34 Channel probe to

TLA7Axx module

Ground lead

Way stations

1--Channel podlet

(clock/qual)

8--Channel podlet

group (data)

Figure 1- 1: P6810 General Purpose pr obe

NOTE. Remember to connect the ground lead of the way station to the target system to improve signal integrity.

The following list details the capabilities and qualities of the P6810 Probe:

H 34 individual active channel podlets

H Differential and single-ended data, clock and qualification inputs

H 2 mm (0.079 in) and 2.54 mm (0.1 in) podlet and leadset connection

capability

H Maximum non-destructive input voltage

H Leadset support for both single-ended and differential applications

H Podlet holder for 8-channel applications

H Color-coded signal connectors

H --2.5 V to +5 V input operating range

1- 2

P68XX Series Logic Analyzer Probes Instruction Manual

Operating Basics

H --2.0 V to +4.5 V threshold range

H 300 mV minimum single-ended signal amplitude

H 150 mV amplitude each side minimum differential signal

H Minimal loading of <1 pFand20kΩ to ground

H Operation in normal or inverted polarity is acceptable

H Any common mode voltage is acceptable so long as the maximum positive

voltage does not exceed +5 V and the maximum negative voltage does not

exceed --2.5 V

NOTE. Single podlet input capacitance is 0.7 pF, but in a group, each podlet will have 1 pF input capacitance.

P6810 Leadset Adapters

and Accessories

Leadsets enhance flexible access to the target system signals by allowing single-pin podlet connections of signals and grounds. This allows the separation of ground and signal connections, providing flexible access to the PCB and backplane connections where signals are not easily accessible together. The following leadsets and accessories accompany the P6810 General Purpose Probe.

H 1-Channel single-ended and differential leadset. Supports individual

leadset connections to backplanes and other connection points requiring

single-ended 2 mm (0.079 in) and 2.54 mm (0.1 in) connections. Both leads

contain 150 Ω damping resistors in the lead tips.

H 8-Channel single-ended leadset. Supports individual leadset connections to

backplanes and other multiple, dense, single-end connections in a 2 mm

(0.079 in) and/or 2.54 mm (0.1 in) pin array. Two common ground connec-

tions for all input signals. The positive leads contain 150 Ω damping

resistors and the leadset housing contains a 150 Ω damping resistor in the

ground path of each channel.

H 8-Channel differential leadset. Supports individual leadset connections to

backplanes and other multiple, dense, differential connections in a 2 mm

(0.079 in) and/or 2.54 mm (0.1 in) pin array. Individual + and -- leads for

each differential signal input. All leads contain 150 Ω damping resistors in

the lead tips.

H SMT KlipChip. An interface device for attaching logic analyzer probes to

components with a maximum lead diameter of 2.413 mm (0.095 in) and a

stackable on lead center of 1.27 mm (0.050 in).

P68XX Series Logic Analyzer Probes Instruction Manual

1- 3

Operating Basics

H Podlet holders. Removable clip that groups eight individual podlets into a

single 8-wide probe assembly. This provides ease when connecting to a row of2x82.54mm(0.1in)squarepins.

1-Channel single-ended and

differential leadset

8-Channel single-ended

leadset

+ Signal

-- Signal

8-Channel differential leadset

SMT KlipChip

Figure 1- 2: P6810 probe leadset adapters and accessories

Podlet holder

1- 4

P68XX Series Logic Analyzer Probes Instruction Manual

Operating Basics

P6860 High-Density Probe

The P6860 Probe is a 34-channel, high-density probe (see Figure 1--3) consisting of two independent probe heads of 17 channel connectors each (16 data and 1 clock/qual).

34 Channel probe to

TLA7Axx module

17--Channel probe head

Elastomer holders (thick

gray or thin black)

Figure 1- 3: P6860 High-Density probe

The following list details the capabilities and qualities of the P6860 Probe:

H Differential or single-ended clock and qualification inputs

H Single-ended data inputs

H Compression contact eliminates need for built-in connector

H Land pattern supports direct signal pass-through

H Supports PCB thickness of 1.27 mm to 3.81 mm (0.050 in to 0.150 in)

H Consists of two independent probe heads of 17 channels each (16 data and

1 clock/qual)

H Narrow 17-channel probe head makes for easier placement and layout

H 2X mode, (for example, 1:2 demultiplexing) uses single-probe head

H 4X mode, (for example, 1:4 demultiplexing) uses one-half of the probe head

H Similar channel density to current Mictor connectors

H Color-coded keyed signal connectors

P68XX Series Logic Analyzer Probes Instruction Manual

1- 5

Operating Basics

H Adapter supports Mictor-based connections

H --2.5 V to +5 V input operating range

H --2.0 V to +4.5 V threshold range

H 300 mV minimum single-ended signal amplitude

H 150 mV amplitude each side minimum differential signal

H Minimal loading of 0.7 pF @ 20 kΩ to ground loading

H Operation in normal or inverted polarity is acceptable (clock only)

H Any common mode voltage is acceptable so long as the maximum positive

voltage does not exceed +5 V and the maximum negative voltage does not exceed --2.5 V (clock only)

P6864 High- Density 4X

Probe

The P6864 Probe is a 17-channel, high-density 4X probe (see Figure 1--4) consisting of a single independent probe head containing 17 channel connectors (16 data and 1 clock/qual) and two module connectors.

8 Channel probe to TLA74xx module

(one of the module end connectors

includes a clock channel)

17 Channel probe head

1- 6

Elastomer holder (thick gray or thin black)

Figure 1- 4: P6864 High-Density 4X probe

P68XX Series Logic Analyzer Probes Instruction Manual

Operating Basics

The following list details the capabilities and qualities of the P6864 probe:

H Differential or single-ended clock and qualification inputs

H Single-ended data inputs

H Compression contact eliminates need for built-in connector

H Land pattern supports direct signal pass-through

H Supports PCB thickness of 1.27 mm to 3.81 mm (0.050 in to 0.150 in)

H Consists of one independent probe head containing 17 channels (16 data and

1 clock/qual)

H Narrow 17-channel probe head makes for increased placement and layout

density when using 4X mode, (for example, 1:4 demultiplexing)

H Color-coded keyed signal connectors

H --2.5 V to +5 V input operating range

H --2.0 V to +4.5 V threshold range

H 300 mV minimum single-ended signal amplitude

H 150 mV minimum each side of a differential signal amplitude

H Minimal loading of 0.7 pF @ 20 kΩ to ground loading

H Operation in normal or inverted polarity is acceptable (clock only)

H Any common mode voltage is acceptable so long as the maximum positive

voltage does not exceed +5 V and the maximum negative voltage does not

exceed --2.5 V (clock only)

P68XX Series Logic Analyzer Probes Instruction Manual

1- 7

Operating Basics

P6880 High-Density

Differential Probe

The P6880 Probe is a 34-channel, high-density differential probe (see Figure 1--5) consisting of four independent probe heads of 8/9 channels each.

34 Channel probe to

TLA7Axx module

Way stations

Elastomer holders

(thick gray or thin

black)

8--/9--Channel probe heads

Figure 1- 5: P6880 High-Density Differential probe

The following list details the capabilities and qualities of the P6880 Probe:

H High-density probe mechanical packaging at half the channel density in the

probe head

H Differential data, clock and qualification inputs (single-ended signals may be

probed if negative input is grounded)

H Same compression land pattern as High-Density Probe eliminates need for

built-in connector

H Land pattern supports direct signal pass-through

H Supports PCB thickness of 1.27 mm to 3.81 mm (0.050 in to 0.150 in)

H Consists of four probe heads supporting 8/9 channels each (nine with

clock/qual) for a total of 34 channels

H 2X mode (1:2 demultiplexing) and 4X mode (1:4 demultiplexing), use two

and one probe head(s) respectively to minimize required board real estate

1- 8

P68XX Series Logic Analyzer Probes Instruction Manual

Operating Basics

H Color-coded keyed signal connectors

H --2.5 V to +5 V input operating range

H --2.0 V to +4.5 V threshold range

H 300 mV minimum single-ended signal amplitude (5 V maximum)

H 150 mV each side minimum differential signal amplitude (2.5 V maximum)

H Minimal loading of 0.7 pF @ 20 kΩ to ground loading

H Operation in normal or inverted polarity is acceptable

H Any common mode voltage is acceptable so long as the maximum positive

voltage does not exceed +5 V and the maximum negative voltage does not

exceed --2.5 V

NOTE. Refer to Figure 2--6 on page 2-27 for P6880 probe routing and pin out information.

Mictor-on-PCB to P6860

Compression Adapter

The Mictor-on-PCB to P6860 Compression adapter (see Figure 1--6) allows existing microprocessor support packages and your hardware designs with embedded Mictor connectors to be connected to the P6860 High-Density Probe.

The CLK pin on the Mictor is connected to the CLK+ pin of the compression footprint. The CLK-- pin of the compression footprint is tied to ground. This allows the differential clock input of the P6860 probe to function as a single-ended signal.

This adapter supports standard Mictor connector footprints and signal connections on older logic analyzer designs.

Differential qualification and clock signals are not supported through the Mictor-on-PCB to Compression adapter due to Mictor footprint limitations (only + side of clock and qual signals are supported).

The Mictor adapter adds 2.7 pF to the high-density compression probe load of

0.7 pF for a combined adapter and probe capacitance load of 3.4 pF.

P68XX Series Logic Analyzer Probes Instruction Manual

1- 9

Operating Basics

Probe head

label

32.20 mm (1.268 in)

Compression adapter

Mictor adapter

Figure 1- 6: Mictor-on-PCB to P6860 Compression adapter

NOTE. The compression adapter is labeled with J1 and J2 signal identifiers to assist you with correctly locating the probe heads on the compression adapter (see Figure 1--6). Each probe-head label contains channel information that you compare with information contained in the Signal-name column of the Table 2--13 on page 2--16 to determine the signal to which you connect the probe head.

See Figure 1--8 on page 1--12 for comparing the clearances between the P6434 and P68xx probes.

58.57 mm (2.306 in)

20.17 mm (.794 in)

12.83 mm (.505 in)

Compression-on-PCB to

P6434 Mictor Adapter

1- 10

The Compression-on-PCB to P6434 Mictor adapter (see Figure 1--7) allows the TLA5000, TLA6xx, and TLA7Lx/Mx/Nx/Px/Qx logic analyzers using a P6434 Probe to take advantage of the new compression footprint and eliminate the need for Mictor connectors in your target system.

NOTE. To use the P6434 adapter, do not install press-in nuts. However, if board thickness is > .093 in, you will need to install press-in nuts before migrating to P68xx probes.

P68XX Series Logic Analyzer Probes Instruction Manual

+ 76 hidden pages