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User Manual
TDS 684A, TDS 744A & TDS 784A
Digitizing Oscilloscopes
070-8991-02
This document applies for firmware version 1.0
and above.
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Copyright Tektronix, Inc. 1994. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and are protected by United States copyright laws and international treaty provisions. Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the Commercial Computer Software – Restricted Rights cl
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WARRANTY Tektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product. In order to obtain service under this warranty, Customer must notify Tektronix of the defect before th
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German Postal Information Certificate of the Manufacturer/Importer We hereby certify that the TDS 684A, TDS 744A, and TDS 784A Digitizing Oscilloscopes and all factory-installed options comply with the RF Interference Suppression requirements of Postal Regulation Vfg. 243/1991, amended per Vfg. 46/1992. The German Postal Service was notified that the equipment is being marketed. The German Postal Service has the right to re-test the series and to verify that it complies. TEKTRONIX Bescheinigung
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EC Declaration of Conformity We Tektronix Holland N.V. Marktweg 73A 8444 AB Heerenveen The Netherlands declare under sole responsibility that the TDS 684A, TDS 744A, and TDS 784A Digitizing Oscilloscopes meet the intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was demonstrated to the following specifications as listed in the official Journal of the European Communities: EN 50081–1 Emissions: EN 55022 Radiated, Class B EN 55022 Radiated, Class B EN 60555–2 Power Harm
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Table of Contents General Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv Default Model . . . . . .
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Table of Contents Delayed Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–80 Measuring Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–87 Taking Automated Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–87 Taking Cursor Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–97 Taking Graticule Measurements . . . . . . . .
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Table of Contents List of Figures Figure 1–1: Rear Panel Controls Used in Start Up . . . . . . . . . . . . . . . 1–4 Figure 1–2: ON/STBY Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5 Figure 2–1: Connecting a Probe for the Examples (P6245 shown) . . 2–9 Figure 2–2: SETUP Button Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10 Figure 2–3: The Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10 Figure 2–4: Trigger Control
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Table of Contents Figure 3–11: Real-Time Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–17 Figure 3–12: Equivalent-Time Sampling . . . . . . . . . . . . . . . . . . . . . . . 3–18 Figure 3–13: How the Acquisition Modes Work . . . . . . . . . . . . . . . . . 3–21 Figure 3–14: Acquisition Menu and Readout . . . . . . . . . . . . . . . . . . . . 3–23 Figure 3–15: Acquire Menu — Stop After . . . . . . . . . . . . . . . . . . . . . . 3–25 Figure 3–16: Aliasing . . . . . . . . .
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Table of Contents Figure 3–46: Main Trigger Menu — Slew Rate Class . . . . . . . . . . . . . 3–79 Figure 3–47: Delayed Runs After Main . . . . . . . . . . . . . . . . . . . . . . . . . 3–81 Figure 3–48: Delayed Triggerable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–81 Figure 3–49: How the Delayed Triggers Work . . . . . . . . . . . . . . . . . . . 3–82 Figure 3–50: Delayed Trigger Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–84 Figure 3–51: Graticule, Cursor and
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Table of Contents Figure 3–83: Acquire Menu — Create Limit Test Template . . . . . . . . 3–139 Figure 3–84: More Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–142 Figure 3–85: Dual Waveform Math Main and Side Menus . . . . . . . . 3–143 Figure 3–86: System Response to an Impulse . . . . . . . . . . . . . . . . . . . . 3–146 Figure 3–87: Define FFT Waveform Menu . . . . . . . . . . . . . . . . . . . . . . 3–147 Figure 3–88: FFT Math Waveform in Math1 . . . . . . .
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Table of Contents List of Tables Table 1–1: Key Features of the TDS Oscilloscopes . . . . . . . . . . . . . . . 1–1 Table 1–2: Fuse and Fuse Cap Part Numbers . . . . . . . . . . . . . . . . . . . 1–5 Table 3–1: Autoset Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6 Table 3–2: How Interleaving Affects Sample Rate . . . . . . . . . . . . . . . . 3–19 Table 3–3: Additional Resolution Bits . . . . . . . . . . . . . . . . . . . . . . . . . 3–22 Table 3–4: TDS 744A Sa
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Table of Contents viii TDS 684A, TDS 744A, & TDS 784A User Manual
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General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Only qualified personnel should perform service procedures. Injury Precautions Use Proper Power Cord To avoid fire hazard, use only the power cord specified for this product. Avoid Electric Overload To avoid electric shock or fire hazard, do not apply a voltage to a terminal that is outside the range specified for that terminal. Ground the Product Th
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General Safety Summary Provide Proper Ventilation To prevent product overheating, provide proper ventilation. Do Not Operate With If you suspect there is damage to this product, have it inspected by qualified service personnel. Suspected Failures Do Not Immerse in Liquids Clean the probe using only a damp cloth. Refer to cleaning instructions. Safety Terms and Symbols Terms in This Manual These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that cou
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General Safety Summary Symbols on the Product The following symbols may appear on the product: Double DANGER Protective Ground ATTENTION Insulated High Voltage (Earth) Terminal Refer to Manual Certifications and Compliances CSA Certified Power CSA Certification includes the products and power cords appropriate for use in the North America power network. All other power cords supplied are approved Cords for the country of use. xi TDS 684A, TDS 744A, & TDS 784A User Manual
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General Safety Summary xii TDS 684A, TDS 744A, & TDS 784A User Manual
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Preface This is the User Manual for the TDS 684A, TDS 744A, and TDS 784A Digitizing Oscilloscopes. The chapter Getting Started briefly describes the TDS Oscilloscope, prepares you to install it, and tells you how to put it into service. The chapter Operating Basics covers basic principles of the operation of the oscilloscope. The operating interface illustrations and the tutorial examples rapidly help you understand how your oscilloscope operates. The chapter Reference teaches you how to perform
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Preface Conventions In this manual, you will find various procedures which contain steps of instructions for you to perform. To keep those instructions clear and consistent, this manual uses the following conventions: In procedures, names of front panel controls and menu labels appear in boldface print. Names also appear in the same case (initial capitals or all uppercase) in the manual as is used on the oscilloscope front panel and menus. Front panel names are all upper case letters, for ex
