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Tektronix 80E01 Manual

Tektronix 80E01 Manual

Electrical sampling modules
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  • Page 1 (217) 352-9330 | Click HERE Find the Tektronix 80E02 at our website:...
  • Page 2 User Manual 80E01, 80E02, 80E03, 80E04 & 80E06 Electrical Sampling Modules 071-0434-05 This document applies to firmware version 1.00 and above. www.tektronix.com Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 3 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.
  • Page 4 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.
  • Page 5 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 6: Table Of Contents

    Table of Contents General Safety Summary ........Environmental Considerations .
  • Page 7 Table of Contents List of Figures Figure 1: Sampling module block diagram ..... Figure 2: Sampling module, 80E04 shown ..... Figure 3: Sampling module compartments .

  • Page 8: General Safety Summary

    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.
  • Page 9 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.

  • Page 10: Environmental Considerations

    (WEEE). For information about recycl- ing options, check the Support/Service section of the Tektronix Web site (www.tektronix.com). Restriction of Hazardous This product has been classified as Monitoring and Control equipment, and is Substances outside the scope of the 2002/95/EC RoHS Directive. This product is known to contain lead, cadmium, and hexavalent chromium.
  • Page 11 Environmental Considerations 80E00 Electrical Sampling Modules User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 12: Preface

    Preface This is the user manual for the 80E01, 80E02, 80E03, 80E04, and 80E06 sampling modules. It covers the following information: H Description of the capabilities of the sampling modules and how to install them H Explanation of how to operate the sampling modules: how to control...
  • Page 13 Preface viii 80E00 Electrical Sampling Modules User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 14: Getting Started

    Getting Started The Tektronix 80E01, 80E02, 80E03, 80E04, and 80E06 sampling modules are high-performance sampling modules that can be installed in the following main instruments: H DSA8200 Digital Serial Analyzer H CSA8000, CSA800B, and CSA8200 Communications Signal Analyzers H TDS8000, TDS8000B, and TDS8200 Digital Sampling Oscilloscopes Proper operation of the electrical sampling modules requires that the appropriate application software is installed on the main instrument.

  • Page 15: Product Description

    N.A. N.A. N.A. The 80E01 module risetime is estimated using the formula risetime = 0.35/bandwidth. The 80E06 module risetime is estimated using the formula risetime = 0.35/(typical bandwidth). 3.5 mm female to 2.4 mm male adapter is provided. Measured at 1 ps/div.

  • Page 16: Figure 1: Sampling Module Block Diagram

    Getting Started 50 Ω Sampler To main instrument Strobe Strobe drive From main instrument Generator Note: the 80E01and 80E06 are single channel modules with a dedicated strobe drive and generator. Sampler To main instrument 50 Ω Figure 1: Sampling module block diagram Channel indicator SELECT channel button light (yellow)

  • Page 17: Options And Accessories

    Table 3: Standard accessories Item Part number Certificate of Traceable Calibration for product at initial shipment Not Orderable 2.4 mm male to 2.92 mm (K) female adapter (80E01 and 80E06 only) 015-0703-xx SMA male 50 termination (one per channel) 015-1022-xx...
  • Page 18 Getting Started Table 4: Optional accessories (cont.) Item Part number Power divider 015-0565-xx SMA accessory kit 020-1693-xx Torque wrench, 8 mm (5/16 inch) open end n.a. 3.5 male to 3.5 female SMA 015-0552-xx Slip-on SMA connector 015-0553-xx 3.5 mm 50 connector (SMA male-to-female) 015-0549-xx BNC female 75...

  • Page 19: Installation

    Getting Started Installation The sampling modules fit into the front panel of the main instrument. Figure 3 shows the front panel of a DSA8200 and the locations of the sampling-module compartments. Large modules Module ejectors Small modules This small module Left-most small module compartment is not usable if compartment is not usable if...

  • Page 20: Static Controlled Workstation

    Industries Association document EIA-625; Requirements for Handling Electrostatic-Discharge-Sensitive (ESDS) Devices. You can use a Tektronix 80A02 EOS/ESD Protection Module to protect the sampling module from damage due to static discharge from circuit boards and cables. Use the 80A02 in applications where large static charges can be stored on the device under test, such as when testing TDR circuit boards or cables.

  • Page 21: Module Installation

    Getting Started Module Installation To install a sampling module, first turn off the instrument using the front-panel On/Standby switch. Then place the sampling module in a compartment and slowly push it in with firm pressure. Once the sampling module is seated, turn the hold-down screw on the sampling module to tighten the sampling module into place.

  • Page 22: Compensation

    Getting Started Compensation After installing a sampling module or after moving a sampling module from one compartment to another, you should run compensation from the Utilities menu to ensure the instrument meets it specifications. Also run a compensation (accessed from the Utilities menu) when doing the following: H Installing an 80E00 sampling-module extender between the instrument and an 80E00 sampling module, where none was used before.
  • Page 23 Getting Started 80E00 Electrical Sampling Modules User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 24: Operating Basics

    Operating Basics This chapter makes you familiar with the operation of your sampling module. It describes the front-panel controls and connectors, interaction of the sampling module with your main instrument, programming the sampling module, and user adjustments. Usage Figure 5 shows the front panel of the sampling module and identifies the buttons, lights and connectors.

  • Page 25: Front-Panel Controls

    Operating Basics Front-Panel Controls Each sampling module contains two identical input channels (80E01 and 80E06 each have one channel). This section describes channel controls, connectors, and indicators. Channel indicator SELECT channel button light (yellow) TEKPROBE connector TDR on indicator light (red)

  • Page 26: Tekprobe Connector

    Operating Basics H If you press the button and the channel is not currently acquiring (for any channel or math waveform), then the instrument activates (turns on) the channel. H If you press the button and the channel is currently active as a channel waveform, then the instrument selects the channel waveform.

  • Page 27: Programmer Interface Commands

    Operating Basics Figure 6: Vertical Setup dialog box Programmer Interface Commands The remote-programming commands for all sampling modules are documented in the online Programmer Guide. User Adjustments All sampling module setups, parameters, and adjustments are controlled by the main instrument. To save, recall, or change any module settings, use the instrument menus or front-panel controls or consult the online help accessed from the main instrument.
  • Page 28 Before using any other type of cleaner, consult your Tektronix Service Center or representative. Do not open the case of the module. There are no user serviceable components and cleaning the interior is not required.
  • Page 29 Operating Basics 80E00 Electrical Sampling Modules User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 30: Reference

    Reference This chapter contains the following sections: H Taking TDR Measurements describes how to use the 80E04 sampling module to perform time-domain-reflectometry (TDR) measurements. H TDR Measurements Background contains information that describes the cause of reflections, measurement range, the velocity of propagation and measuring mismatches, measurement units, and considerations for making accurate measurements.

  • Page 31: Figure 7: Simplified Schematic Diagram Of Step Generator - Positive Polarity

    Reference Keys to Using Read the following topics; they provide details that can help you set up and take effective TDR measurements. TDR Step Generation. Both channels in the 80E04 TDR/sampling module have a selectable polarity step generator which gives both channels measurement capabilities.

  • Page 32: Figure 8: Step Generator With A Shorted Output

    Reference propagation time from the acquisition point to the short in the device under test and back. See Figure 8. 250 mV Figure 8: Step generator with a shorted output Operation Into a 50 Ω Load. Initially, the diode switch is conducting - -10 mA. Since the step-generator output is connected to a 50 Ω...
  • Page 33 Reference When the diode switch opens (reverse-biased), apparent resistance to ground at the acquisition point (and at the channel connector) is 25 Ω because the internal termination resistance is 50 Ω in parallel with the connector impedance of 50 Ω. The voltage at the acquisition point rises to +250 mV.

  • Page 34: Figure 11: Tdr Displays For Typical Loads

    Reference = 1, E Open circuit termination, Z Line terminated in a series R-L 2Z 0 Line terminated in Z = 2Z Line terminated in a shunt R-C Line terminated in Characteristic Z = Zo, E Z 0/2 Line terminated in a shunt R-L —E Line terminated in Z /2, E...
  • Page 35 Reference To Take a TDR This example demonstrates the TDR feature of the 80E04 sampling module. Measurement TDR is a method of examining and measuring a network or transmission line by sending a step into the network and monitoring the reflections. Overview To take a TDR measurement Control elements &...
  • Page 36 Reference Overview To take a TDR measurement (cont.) Control elements & resources Set other TDR Adjust the VERTICAL SCALE (500 m div in this Incident Reflection from TDR step open end of cable parameters example) and HORIZONTAL SCALE (2 ns/div in this example) to show a trace similar to that shown.
  • Page 37 Reference Overview To take a TDR measurement (cont.) Control elements & resources Specifying hori- 11. Select the HORIZONTAL tab. zontal timebase Distance 12. Select the Distance radio button. Use this control to units button specify the type of units to use for the horizontal axis for all timebases.
  • Page 38 Reference Overview To take a TDR measurement (cont.) Control elements & resources Take automatic 16. Use the Vertical buttons to select the TDR waveform to measurements be measured. 17. Select one of the measurement tool bars. 18. Click the measurement you want (such as mean) in the measurement tool bar.
  • Page 39 Reference Overview To take a TDR measurement (cont.) Control elements & resources Take cursor 23. Press the SETUP DIALOGS button and select the measurements Cursor tab. 24. Select the Waveform cursor type. Click to access sources 25. From the pop-up list for each of Cursor 1 and Cursor 2, select your TDR source.

  • Page 40: Tdr Measurements Background

    Reference TDR Measurements Background TDR is based on a simple concept: Whenever energy transmitted through any medium encounters a change in impedance, some of the energy is reflected back toward the source. The amount of energy reflected is a function of the trans- mitted energy and the magnitude of the impedance change.

  • Page 41: Figure 13: Tdr Waveform Of Microstrip In Figure 12

    Reference Cause of Reflections The reflections that a TDR displays and measures are caused by changes in the impedance of the path of the step (circuit board, cable, or integrated circuit). Any significant change in impedance will cause a reflection. As an example, if an open solder connection exists on a circuit board, you can see that change with TDR.

  • Page 42: Figure 14: Tdr Step And Reflection (Short)

    Reference Short Figure 14: TDR step and reflection (short) TDR Measurement Range What is the range of your TDR? is a common question asked by people looking to purchase a TDR. This is a very important question that cannot be answered simply.

  • Page 43: Finding The Velocity Of Propagation And Locating Mismatches

    Reference Finding the Velocity of The time between the incident edge and the reflected edge is valuable in Propagation and Locating determining the length of the transmission line from the TDR to a mismatch, or between two mismatches. The formula is: Mismatches where: distance to the fault...

  • Page 44: Figure 15: Tdr Step And Reflection (50 Ω Line Terminated In 75 Ω)

    Reference Figure 15 shows a typical waveform from a Tektronix CSA8200 mainframe equipped with an 80E04 TDR/sampling module. In this case, the instrument is connected through a 50 Ω coaxial cable to a 75 Ω device under test. The incident step is about 2 divisions in amplitude, and the reflection from the device under test is about 0.4 division high.

  • Page 45: Making Accurate Tdr Measurements

    To take TDR measurements on coupled transmission lines. Using common-mode and differential TDR, you can characterize coupled transmission lines. What’s Special? The Tektronix 80E04 sampling module is a true differential sampling module for more accurate differential TDR measurements. What’s Excluded? This feature only works with an 80E04 sampling module.
  • Page 46 Reference Keys to Using Read the following topics; they provide details that can help set up to take effective differential and common mode TDR measurements. The 80E04 TDR/sampling module is able to perform differential and common- mode TDR measurements. As described earlier, the sampling module has two input channels and two independent step generators.
  • Page 47 Reference To take a common mode or differential TDR measurement (cont.) Overview Control elements & resources Preset TDR 4. Initialize the instrument (press DEFAULT SETUP). Press the SETUP DIALOGS button and select the TDR tab. TDR tab Press TDR Preset for both channels (for the sampling module connected to the cables) to turn them on.
  • Page 48 Reference To take a common mode or differential TDR measurement (cont.) Overview Control elements & resources Common mode 13. Notice that both channels assert a positive TDR step for common-mode TDR. 14. When the TDR steps on the two channels are the same polarity (both positive or negative), you can define a math waveform that represents the average common- mode signal by pressing the VERTICAL MENU button,...
  • Page 49 Reference To take a common mode or differential TDR measurement (cont.) Overview Control elements & resources 20. When the TDR steps on the two channels are opposite (one positive and one negative), you can define a math waveform that represents the difference signal by pressing the VERTICAL MENU button, selecting the Vert tab, selecting Waveform M1, On, and then selecting Define, C1, +, C2, Math Waveform On, and...
  • Page 50 Reference Adjusting TDR Step When making differential or common-mode TDR measurements, the two steps Deskew must arrive at the same time at the reference plane (usually the connection point to the device under test). To adjust the TDR step deskew perform the following steps: Overview Adjusting TDR step deskew...

  • Page 51: Connector And Adapter Care Requirements

    Reference Connector and Adapter Care Requirements This section describes proper care and use of the connector and adapter for electrical modules, including protection against electrostatic discharge (ESD), cleaning connectors, and the assembly and torquing of connectors. Electrostatic Discharge Protection against ESD is essential while connecting, inspecting, or cleaning connectors attached to a static-sensitive circuit.

  • Page 52: Cleaning Connectors

    Reference H Reduce connector wear by keeping connectors clean and by connecting them properly. H Replace calibration devices with worn connectors and use an adapter on the input connector, when applicable, to minimize wear. H Inspect connector mating-plane surfaces for dents, scratches, and for dirt and particles.
  • Page 53 Reference Overview To follow proper cleaning procedures (cont.) Control elements & resources Cleaning the Use compressed air or nitrogen to loosen particles on connector the connector mating plane surfaces. See the preceding threads Precautions. To remove dirt or stubborn contaminants on a connector that cannot be cleaned with compressed air or nitrogen, apply a small amount of isopropyl alcohol to a lint-free cleaning swap.

  • Page 54: Assembly And Torquing

    Reference Assembly and Torquing Good connections require a skilled operator. The most common cause of measurement error is bad connections. The procedures in this section describe how to make good connections. To properly perform assembly and torquing of Overview connectors Control elements &...

  • Page 55: Table 5: Torque Wrench Information

    Reference To properly perform assembly and torquing of connectors (cont.) Overview Control elements & resources Torquing multi- If starting from a fully disassembled state, order the ple inline connections so that they are assembled from the outside connectors moveable portions toward the inward (stationary) portions.

  • Page 56: Tdr Impedance Measuring

    Reference TDR Impedance Measuring This stand-alone application implements the TDR calibration procedure(s) specified by the IPC- -TM- -650 test methodology. It enhances the accuracy and repeatability of impedance measurements by calibrating the test setup to correct for losses and impedance discontinuities. Additionally, this application can use a database for storing TDR measurements.

  • Page 57: Eos (Electrical Overstress) Prevention

    However, unlike ESD that typically deals with thousands of volts, EOS can occur at a low voltage level. For Tektronix 80E00-series modules, EOS damage could occur at levels as low as 10 V. EOS can have a cumulative effect;...

  • Page 58: Figure 17: First Example Of Eos Error

    Reference Checking For Damage If the waveform top is bowed, sagged, hooked, or tilted, assume static has damaged the module and service is required. Figure 17 on page 45 shows a typical waveform signature indicating EOS damage. Also be aware that EOS can be cumulative; that is, every time an EOS event occurs during testing, EOS damage can accumulate until there is even greater damage, as shown in Figure 18 on page 46.

  • Page 59: Figure 18: Second Example Of Eos Error Showing Cumulative Effect

    Reference 1.995 p EOS signature 200 mp /div trig’d - - 2.005 p 2 s/div 20.26 s/div 261.7 ns Figure 18: Second example of EOS error showing cumulative effect 80E00 Electrical Sampling Modules User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 60: Specifications

    Specifications Specifications Electrical Sampling Modules This section contains specifications for the 80E01, 80E02, 80E03, 80E04, and 80E06 sampling modules. All specifications are guaranteed unless noted as “typical.” Typical specifications are provided for your convenience but are not guaranteed. Specifications that are marked with the n symbol are checked in the DSA8200 Specifications and Performance Verification manual.

  • Page 61: Table 7: Electrical Sampling Modules - Signal Acquisition

    Precision 1.85 mm female connector (V) (2.4 mm male to 2.92 mm (K) female adapter, 015-0703-xx, is supplied). Number of input Sampling module Channels channels 80E01, 80E06 80E02, 80E03, 80E04: n Input impedance Vertical dynamic (offset 500 mV) range Vertical operating 1.6 V...
  • Page 62 Table 7: Electrical sampling modules - Signal acquisition (cont.) Specifications Characteristics n Rise time Sampling module Rise time ≤ 7 ps, typical 80E01 ≤ 28 ps 80E02 ≤ 17.5 ps 80E03 and 80E04 ≤ 5.0 ps, typical 80E06 n Analog bandwidth...

  • Page 63: Table 8: Electrical Sampling Module (80E04) - Tdr System

    Input Signal Ranges in IEEE std 1057, section 2.2.1. IEEE std 1057, section 4.8.2, Transition Duration of Step Response. The 80E01 rise time is calculated from the 0.35 bandwidth-risetime product. The 80E06 rise time is calculated from the 0.35 typical bandwidth-risetime product.

  • Page 64: Table 9: Electrical Sampling Modules - Timebase System

    (deskew adjust range between channels) Table 10: Electrical sampling modules - Power consumption Specifications Characteristics Power dissipation Sampling module Power dissipation 80E01 1.1 W 80E02, 80E03 1.8 W 80E04 3.2 W 80E06 2.4 W 80E00 Electrical Sampling Modules User Manual...

  • Page 65: Table 11: Electrical Sampling Modules - Mechanical

    Specifications Table 11: Electrical sampling modules - Mechanical Specifications Characteristics Weight (unpackaged) 0.4 kg (13 oz.) Overall dimensions Height: 25 mm (1.0 in) Width: 79 mm (3.1 in) Depth: 135 mm (5.3 in) Does not include connectors, connector savers, connector covers, push buttons, or lock-down hardware protruding from the front or rear panels.

  • Page 66: Glossary

    Glossary Accuracy The closeness of the indicated value to the true value. Analog-to-Digital Converter A device that converts an analog signal to a digital signal. Attenuation A decrease in magnitude of current, voltage or power of a signal. Attenuator An electronic transducer that reduces the amplitude of a signal. Autoset A means of letting the instrument set itself to provide a stable and meaning- ful display of a given trace.
  • Page 67 Glossary Electrical Overstress (EOS) Electrical overstress occurs when an electronic device is subjected to an input voltage higher than the designed maximum tolerable level. External Attenuation A decrease in magnitude of current, voltage or power of a signal that is outside the sampling module.

  • Page 68: Index

    Optional, 4 Detecting blown inputs, 43 Standard, 4 Dialog box, 53 Accuracy, 53 Differential mode, 53 Address, Tektronix, vi Differential TDR measurements, 18, 33 Adjustments, 14 Digital signal, 53 Analog-to-digital converter, 53 Application software version, requirement vs. module model, 1...
  • Page 69 Step generation, TDR, 18 Step generator, operation, 18, 19, 20 System interaction, 13 Waveform, 54 Web site address, Tektronix, vi TDR, 54 adjust channel deskew, 37 80E00 Electrical Sampling Modules User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

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