Tektronix TriMode P7700 Series User Manual
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Tektronix TriMode P7700 Series User Manual

Probes
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P7700 Series
TriMode™ Probes
User Manual
*P071342104*
071-3421-04

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Summary of Contents for Tektronix TriMode P7700 Series

  • Page 1 P7700 Series TriMode™ Probes User Manual *P071342104* 071-3421-04...
  • Page 3 P7700 Series TriMode™ Probes User Manual Register now! Click the following link to protect your product. www.tek.com/register 071-3421-04...
  • Page 4 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.

  • Page 5: Table Of Contents

    Table of Contents Table of Contents Warranty 2 - long form................................0 List of Figures....................................vi List of Tables....................................vii Important safety information............................... viii General safety summary..............................viii Terms in the manual................................viii Terms on the product................................viii Symbols on the product.................................ix Compliance Information................................x Environmental compliance..............................

  • Page 6: List Of Figures

    List of Figures List of Figures Figure 1: Simplified probe input model............................17 Figure 2: Input dynamic range for solder-in tips and browser..................... 17 Figure 3: Probe setup screen panel ............................18 Figure 4: Simplified probe architecture diagram......................... 24 Figure 5: Simplified drawing of input attenuation factor of the tip buffers..................25 Figure 6: Proper configuration of the Differential Input mode signal and offset voltage..............26 Figure 7: Solder tip measurement configuration.........................
  • Page 7 List of Tables List of Tables Table 1: P7700 Series TriMode probes............................3 Table 2: Required equipment, functional check with probe tip...................... 9 Table 3: Required equipment, functional check with SMA adapter....................9 Table 4: Required equipment, DC compensation........................12 P7700 Series TriMode™ Probes...

  • Page 8: Important Safety Information

    Important safety information Important safety information This manual contains information and warnings that must be followed by the user for safe operation and to keep the product in a safe condition. General safety summary Use the product only as specified. Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it.

  • Page 9: Symbols On The Product

    Important safety information • 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 When this symbol is marked on the product, be sure to consult the manual to find out the nature of the potential hazards and any actions which have to be taken to avoid them.

  • Page 10: Compliance Information

    This symbol indicates that this product complies with the applicable European Union requirements according to Directives 2012/19/EU and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries. For information about recycling options, check the Tektronix Web site (www.tek.com/productrecycling). P7700 Series TriMode™ Probes...

  • Page 11: Preface

    Preface Preface This manual describes the installation and operation of the P7700 Series TriMode Probes. Basic probe operations and concepts are presented in this manual. All documents listed below are accessible from the Tektronix Web site (www.tek.com/manuals). Probe models These P7700 Series TriMode Probe family includes these models: •...
  • Page 12 Preface To read about Use these documents Reordering Use the Accessories and Options section or refer to the insert in your accessory kit when accessories reordering accessories. P7700 Series TriMode™ Probes...

  • Page 13: Installation

    Installation Installation Before you connect the probe to your instrument, read the following Operating considerations and Overview sections to understand the operating characteristics and sequence of events necessary to properly install the probe and adapters. CAUTION: To avoid ESD damage to the probe, always use an antistatic wrist strap (provided with your probe), and work at a static-approved workstation when you handle the probe.

  • Page 14: Installation Overview

    Installation Installation overview CAUTION: To avoid ESD damage to the probe, always use an antistatic wrist strap (provided with your probe), and work at a static-approved workstation when you handle the probe. 1. Connect the probe to the host instrument. If it is the first time the probe has been connected to the oscilloscope, the oscilloscope will download the S-parameters stored in the probe and cycle through the LEDs.
  • Page 15 Installation Disconnect To disconnect the probe, move and hold the locking lever at the unlocked position and pull out the probe. To disconnect, turn the thumbscrew counter-clockwise. Press the latch release button and pull the probe away from the instrument. Probe and probe tip power-on After the connection to the oscilloscope is made:...

  • Page 16: Connect Accessories To The Tekflex Connector

    Installation displays on the instrument as the transfer occurs. The data transfer takes a few minutes, and is only done when the host instrument discovers a new probe or new probe tip. The data transfer only occurs on instruments that are fully compatible with the probe.

  • Page 17: Probe Comp Box Controls And Indicators

    Installation connector closes. When closed and properly seated, the top of connector will be flush with the probe tip housing. Probe comp box controls and indicators Input mode buttons and LEDs The P7700 TDP7700 Series solder-in tips support TriMode operation. TriMode enables you to switch the probe between four different measurement types without changing the probe’s connection: Press the Input Mode button to select one of the four TriMode...

  • Page 18: Warning Status Led

    Installation Warning Status LED The Warning Status LED glows amber red under the following conditions: The Warning Status LED clears is green when the condition causing the warning is removed and under normal operation. A notifier message of a probe warning status condition can also be seen on the oscilloscope.

  • Page 19: Functional Check And Calibration

    Tektronix MSO/DPO70000C/70000DX TekVPI Interface Tektronix MSO6 Series SMA adapter Coaxial input SMA adapter P77C292MM Test board Probe compensation and deskew fixture TEK-CDA Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers Optional accessory Optional accessory Optional accessory P7700 Series TriMode™ Probes...
  • Page 20 Functional check and calibration Test setup with the P77DESKEW Fixture Test setup with the TEK- CDA accessory Connect the probe to any channel (1-4) of the oscilloscope (connection to CH4 is shown). Set the oscilloscope to display the connected channel. Connect the USB cable assembly supplied with the P77DESKEW TEK-CDA fixture between the...
  • Page 21 Functional check and calibration connector of the probe should first be connected to the P77BRWSR TDP77BRWSR tip. The P77BRWSR TDP77BRWSR tip inputs must then be pressed into place against the A and B signal traces on the P77DESKEW TEK-CDA fixture board edge, located between the Port1 and Port2 clamps.

  • Page 22: Trimode Probe Dc Compensation

    Table 4: Required equipment, DC compensation Item description Performance requirement Recommended example Oscilloscope TekConnect Interface Tektronix MSO/DPO70000C/70000DX TekVPI Interface Tektronix MSO6 Series Table continued… Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers P7700 Series TriMode™ Probes...
  • Page 23 If the status is not pass, disconnect all probes and signal sources from the oscilloscope, and run the Signal Path Compensation routine. Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers P7700 Series TriMode™ Probes...
  • Page 24 Functional check and calibration When the Signal Path compensation test status is Pass, continue calibrating the probe. Compensate the probe on page 14. Compensate the probe Connect a BNC cable from the DC Probe Cal output connector on the oscilloscope to the BNC connector on the TriMode DC Calibration board.
  • Page 25 Functional check and calibration P7700 Series TriMode™ Probes...
  • Page 26 Functional check and calibration In the oscilloscope menu bar, select Vertical and then select Probe Cal. The Probe Setup dialog box appears. Select the Compensate Probe button. The probe calibration routine runs, optimizing the probe to the oscilloscope for each input mode setting.

  • Page 27: Basic Operation

    Basic operation Basic operation This section includes information about the probe input limits, using the probe controls, and procedures for connecting the probe to your circuit. Probe input model A simplified input model of the probe is shown below to illustrate the probe offset voltage controls. The probe has two symmetrical signal inputs, the A input and the B input, which you can display independently or in combination by selecting the appropriate probe input mode.

  • Page 28: Probe Setup Screen Panel

    Basic operation around ground. The size of the probe input dynamic range depends on the probe tip that you are using, as shown in the diagrams, and can also depend on the input mode selected. The probe input dynamic range limits are shown on the oscilloscope display with a momentary annunciating, arrow-tipped line, when the vertical scale setting is large enough.
  • Page 29 Basic operation Selecting the TriMode input mode The Input Mode input Mode button on the probe toggles the internal probe input selector switches among the four input mode selections. The mode can also be selected from the drop- down menu Mode list in the Probe Setup screen panel.
  • Page 30 Basic operation designed for minimal coupling from any signal present on the B input within the A input isolation performance of the probe. B-GND mode. The B-GND mode is used for making single-ended measurements with the probe B input. The probe ground input connects the probe tip and main cable shield.
  • Page 31 Basic operation • Common = (A + B)/2 Adjusting the Differential or Common settings affects the A and B settings • A = Common + (Differential/2) • B = Common – (Differential/2) The oscilloscope vertical channel offset control also adjusts the selected Input mode offset voltage field. Auto Offset voltage set buttons The probe A and B signal inputs are sensed, monitored, and averaged by probe internal circuitry and the sensed values are used by the automatic offset voltage control buttons Auto Offset Mode button.
  • Page 32 Basic operation Tracking When this box is selected, the probe continually measures the common mode voltage currently present on the inputs of the probe. Using the measured common mode values the A, B, and CM offsets will be set automatically. When Tracking is enabled, the A, B, and CM offsets cannot be changed manually.
  • Page 33 Basic operation A graph of the operating limits of the termination DC bias voltage with respect to the input voltage is shown for the P77C292MM adapter. The hi and lo lines represent the hysteresis sections and the limits are the points where the Status light turns on.

  • Page 34: Figure 4: Simplified Probe Architecture Diagram

    10 mils (.25 mm) and a ground wire length of 66 mils (1.7 mm). Please see the Specifications Technical Reference manual available for download at the Tektronix website for more detailed specifications on wire length as it affects tip performance.

  • Page 35: Figure 5: Simplified Drawing Of Input Attenuation Factor Of The Tip Buffers

    Basic operation Using offset voltage to extend P7700 TDP7700 series solder-in tip input voltage range The single-ended linear dynamic range of the TekFlex solder-in tip inputs is specified to be 2.5 V , which is a range from -1.25 V to +1.25 V with zero volt offset. The dynamic range of P7700 TDP7700 Series buffers is limited by the input attenuation factor, which is 2X for the solder-in probe tips as shown in the simplified drawing.

  • Page 36: Figure 6: Proper Configuration Of The Differential Input Mode Signal And Offset Voltage

    Basic operation signals. If the probe tip B input is connected to a DUT ground, the resulting Differential Input mode measurement (A – 0 V) results in a display of the single-ended A input signal response. When making differential signal measurements, the P77BRWSR P77BRWSR Offset Voltage control is normally set to the Common-mode (CM) Tracking mode.

  • Page 37: Connecting To A Circuit Board

    Basic operation Temperature compensation These probes employ temperature compensation to optimize measurement accuracy. Whenever a probe setting is changed, such as Input Mode, Offset Voltage, or vertical scale factor, a temperature compensation update occurs. Continuous temperature compensation is not done to avoid introducing noise into the probe amplifiers. To maximize measurement accuracy when the probe is first powered on from a cold start condition, you must allow the probe and oscilloscope a 20 minute warm-up period.
  • Page 38 Tri-Pod accessory or a probe positioner such as the Tektronix PPM203B. See Making single ended measurements using the P77BRWSR P77BRWSR on page 25.
  • Page 39 Basic operation The flex circuit based solder tips are made with flex circuit material and can be bent and shaped to fit around or into spaces where it is difficult to reach a test point. The minimum bend radius for the flex tips is 1.0 in (25.4 mm) 0.25 in (6.35 mm).
  • Page 40 Basic operation Tip soldering CAUTION: This procedure uses equipment at high temperature. Avoid touching hot surfaces. Recommended equipment • Lead-free solder • 4 mil diameter (38 AWG) wire (a spool of 38 AWG wire is included as a standard accessory with each P7700 TDP7700 Series probe) •...
  • Page 41 Basic operation Thread tip onto wires. The two middle vias are the A(+) and B(-) inputs of the tip. You may find it useful to use the double-sided foam tape that was shipped with your probe to hold the probe tip in place. With the tip in position, quickly solder the wires to the vias.
  • Page 42 Basic operation Attach the ground wire for TriMode input to the probe tip. First add solder to the test point and the nearest ground via on the solder tip. Second, solder a short piece of wire between the ground via on the tip and the ground test point.
  • Page 43 Basic operation Tip unsoldering procedure. Use small solder-wick to remove the solder and wire from the tip ground via. Size #1 Solder-Wick is recommended due to the small size of the tip and vias. Do not place the solder wick over the 0201 input resistors and these parts may accidentally be unsoldered from the board.
  • Page 44 Basic operation tip up without first breaking the tape's adhesion can damage the tip. Precautions when connecting to the circuit To achieve the best performance and service life of the probe and tips, observe the best practices below when you make connections: •...

  • Page 45: Best Practices

    Basic operation Best practices Tektronix TriMode probes are quality measurement tools and should be treated with care to avoid damage or performance degradation due to mishandling. Take the following precautions when handling the probe cables: • Never over-bend the probe main or tip cables, which can put a permanent kink into the cable. When storing the probe do not coil it too tightly.

  • Page 46: S-Parameter Information

    The root path for the folders containing the S-parameter is C:\ProgramData\Tektronix\TekScope\Instrumment (where Instrument is the instrument model, such as DPO73304). Starting in this folder, look through the folders for the probe, tip model numbers, and serial numbers.

  • Page 47: Accessories And Options

    Accessories and options Accessories and options You can reorder the following replacement parts and accessories. Note that in some cases, the reorder quantities may differ from those that ship with the probe. Standard accessories The following accessories are shipped with the P7700 TDP7700 Series probes. If no quantity is listed, only one of that item is shipped.

  • Page 48: Optional Accessories

    User manual. The manual provides instructions for using the P7700 TDP7700 Series TriMode Probes. Other documents, such as the technical reference and other 071-3559-xx probe literature are located on the Tektronix web site (www.tek.com/manuals). Optional accessories Optional accessory Part and description...
  • Page 49 Accessories and options Optional accessory Part and description P77STFLXB Flex circuit based solder in tips for memory interposer probing. These tips use flex circuit material and provide soldered, multi-point connections. Designed to be used with Nexus Technology memory interposers. Wire kit (38 AWG, 4 mil) 017-0103-xx P77DESKEW, Deskew fixture Use this fixture to compensate a probe, deskew up to 2...
  • Page 50 Accessories and options Optional accessory Part and description 407-6019-xx, Probe adapter Use this accessory to attach the browser to the PPM203B. probe arm/positioner P77C292MM, 2.92 mm adapter Use this adapter to connect a P7700 TDP7700 series probe to a DUT with 50 Ω test point connectors. 020-3179-xx, Linkage adapter kit Use the adapters for stacking two or more P77C292MM 2.92 mm adapters.

  • Page 51: Maintenance

    Maintenance Maintenance This section contains maintenance and support information for your probe. Host instrument firmware Some oscilloscopes might require a firmware upgrade to support full functionality of the P7700 TDP7700 Series probes. Instruments with lower versions of firmware might not display all probe controls and indicators on screen, and in some cases require you to power-cycle the instrument to restore normal instrument operation.

  • Page 52: Error Conditions

    Disconnect and reconnect the probe to restart the power-on diagnostic sequence. If the symptoms continue, connect the probe to another oscilloscope channel or oscilloscope. If the symptoms remain, return the probe to Tektronix for repair. There is an amber-colored a Status indicator LED located on the top plate of the probe comp box. This LED turns on when...

  • Page 53: Cleaning The Probe

    Do not use abrasive compounds on any part of the probe. Returning the probe for servicing If your probe requires servicing, you must return it to Tektronix. If the original packaging is unfit for use or not available, use the following packaging guidelines: Preparation for Shipment...
  • Page 54 Maintenance P7700 Series TriMode™ Probes...

  • Page 55: Index

    Index accessories handling the probe standard host instrument firmware Auto Offset improving measurement accuracy browser tip dynamic range Input Mode selection input network input voltage range extend using offset voltage installation calibration connecting accessories probe probe DC TriMode compensation probe LED indicators temperature TriMode...
  • Page 56 Probe Setup screen (continued) offset voltage set buttons replacing tips returning the probe S-parameter files storage file structure signal display errors single-ended measurements using browser differential probe tip solder tip dimensions solder-in tips P77STCABL standard accessories TekFlex connecting accessories dimensions temperature compensation termination voltage tip replaement...

This manual is also suitable for:

Trimode p7708Trimode p7713Trimode p7716Trimode p7720

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