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* [http://w140.com/manual_TDS754A.pdf TDS 500B, TDS 600B, and TDS 700A Digitizing Oscilloscopes 070-9719-00 (PDF)]
{{Oscilloscope Sidebar
* [http://w140.com/tek_tech_ref_TDS_520B_540B_620B_644B_680B_684B_724A_744A_784A.pdf TDS 520B, TDS 540B, TDS 620B, TDS 644B, TDS 680B, TDS 684B, TDS 724A, TDS 744A, and TDS 784A Digitizing Oscilloscopes Performance Verification and Specifications 070-9384-01 (PDF)]
|manufacturer=Tektronix
|series=TDS series scopes
|model=TDS644
|summary=500 MHz, 2 GS/s, 4-Ch digital scope
|image=TDS644A front.jpg
|caption=Tektronix TDS644A
|introduced=1994
|discontinued=(?)
|designers=
|manuals=
'''TDS644A'''
* [[Media:070-8709-06.pdf|TDS600A Programmer 070-8709-06]]
* [[Media:070-8709-07.pdf|TDS600A Programmer 070-8709-07]]
* [[Media:070-8711-02.pdf|TDS600A Reference 070-8711-02]]
* [[Media:070-8715-04.pdf|TDS644A User Manual 070-8715-04]]
* [[Media:070-8718-04.pdf|TDS644A Service Manual 070-8718-04]]
* [[Media:55W-8862-00.PDF|Sales Brochure]]


'''TDS644B'''
* [[Media:070-9382-01.pdf|TDS600B Reference 070-9382-01]]
* [[Media:070-9384-01.pdf|TDS600B Performance Verification and Specifications 070-9384-01]]
* [[Media:070-9386-03.pdf|TDS600B Service Manual 070-9386-03]]
* [[Media:070-9719-00.pdf|TDS600B Digitizing Oscilloscopes 070-9719-00]]
* [[Media:070-9721-02.pdf|TDS600B Service Manual 070-9721-02]]
* [[Media:070-9556-00.pdf|TDS644B etc Programmer Manual 070-9556-00]]
* [[Media:070-9861-00.pdf|TDS600B Reference 070-9861-00]] / <small>[[Media:070-9861-00 c2.pdf|Alternate copy]]</small>
* [[Media:070-9869-00.pdf|TDS600B User 070-9869-00]] / <small>[[Media:070-9869-00 c2.pdf|Alternate copy]]</small>
* [[Media:070-9874-02.pdf|TDS600B Technical Reference 070-9874-02]]
* [[Media:070-9875-04.pdf|TDS600B Service 070-9875-04]]
* [[Media:070-9876-00.pdf|TDS600B Programmers Manual 070-9876-00]]
* [[Media:071-0090-01.pdf|TDS600B User Manual Supplement 071-0090-01]] / <small>[[Media:071-0090-01 c2.pdf|Alternate copy]]</small>
* [[Media:071-0134-00.pdf|TDS600B User Manual Japanese 071-0134-00]]
* [[Media:071-0135-00.pdf|TDS600B Performance Verification and Specifications 071-0135-00]]
* [[Media:071-0136-00.pdf|TDS600B Service Manual 071-0136-00]]


[[Category:TDS series scopes]]
'''Schematics'''
* [http://hakanh.com/dl/docs/hardtofind/TDS644A_A10(Acq).pdf Full TDS644A schematics of A10 Acquisition board (TDS640, TDS640A, TDS644A)]
* [http://hakanh.com/dl/docs/hardtofind/TDS544A_A11(CPU).pdf Full TDS644A schematics of A11 CPU board (TDS644A, same as TDS544A)]
* [http://hakanh.com/dl/docs/hardtofind/TDS544A_A17-A19(PS).pdf Full TDS644A schematics of A17 - A19 Power Supply boards (TDS620, TDS640, TDS640A & TDS644A, same as TDS544A)]
* [http://hakanh.com/dl/docs/hardtofind/TDS544A_A30-32(Disp).pdf Full TDS644A schematics of A30 - A32 Display/CRT Assy boards (same as TDS544A)]
 
'''Common'''
* [[Media:061-4094-02.pdf|TDS, TLS & CTS FDD Replacement 061-4094-02]]
* [[Media:070-8432-04.pdf|TLS Logic Scope and TDS Series Oscilloscopes Rackmount Installation 070-8432-04]]
* [[Media:070-8748-02.pdf|TDS Family Opt 05 Video Trigger Interface Instruction Manual 070-8709-02]]
* [[Media:070-8919-00.pdf|TTiP TDS Telecommunication Templates & i-Pattern Software 070-8919-00]]
* [[Media:070-9636-02.pdf|TDS Family Opt 05 Video Trigger Interface Install 070-9636-02]]
* [[Media:070-9785-03.pdf|Wavestar Software User Manual 070-9785-03]]
* [[Media:071-0220-07.pdf|WSTRO & WSTROU WaveStar Software User Manual 071-0220-07]]
* [[Media:071-0220-09.pdf|WSTRO WaveStar Software User Manual 071-0220-09]]
* [[Media:071-0817-00.pdf|WSTRO, WSTROU & WSTRM WaveStar Software, AD007 GPIB-LAN Adapter, TDS3EM Ethernet Comms Module User Manual 071-0817-00]]
* [[Media:071-1140-03.pdf|WaveStar Software, Wavestar Reader, AD007 GPIB-LAN Adapter Software Solutions Installation 071-1140-03]]
 
}}
The '''Tektronix TDS644A''' 4 Channel Digitizing Oscilloscope has a real-time bandwidth of 500 MHz and a sample rate of 2 GS/s, with a record length of up to 2,000 points per channel. <br>
The '''Tektronix TDS644B''' has a sample rate of 2.5 GS/s, with a record length of up to 15,000 points per channel.
 
Features include Waveform Math and Advanced Waveform DSP, Color VGA Display, 3.5" DOS Format [[Floppy]] Drive, [[RS-232 interface]], Centronics, [[GPIB]] and [[VGA Connector]].  Inputs have [[Tekprobe BNC connector]]s.
 
Opt.05 adds video trigger for NTSC, PAL, HDTV.
 
{{BeginSpecs}}
 
{{Spec | Bandwidth        | 500 MHz                  }}
{{Spec | Sampling rate    | 2 GS/s (TDS644A), 2.5 GS/s (TDS644B) on all 4 channels }}
{{Spec | Time base        | 500 ps/Div to 5 s/Div    }}
{{Spec | Deflection      | 1 mV/Div to 10 V/Div    }}
{{Spec | Resolution      | 8 bits                  }}
{{Spec | Record length    | 500 to 2000 points (TDS644A), 15,000 points (TDS644B) }}
{{Spec | Input impedance  | 1 MΩ // 10 pF, or 50 Ω  }}
{{Spec | Interface        | GPIB standard            }}
{{Spec | Options |
* Centronics interface (standard)
* RS-232 interface (standard)
* FFT, integration and differentiation (standard)
}}
{{EndSpecs}}
 
==Software==
* [[Media:063-1908-01.zip|TDS600 Field Adjustment Software]] (ZIP)
<br>
* [[Media:063-1134-00 V1.2.zip|TDS Family Programming Examples Software 063-1134-00 V1.2]] (ZIP)
* [[Media:066-0002-00.zip|Waveform Converter For Oscilloscopes 066-0002-00]] (ZIP)
* [[Media:066-0087-00.zip|AWE Drivers For Tektronix Oscilloscopes 066-0087-00]] (ZIP)
* [[Media:066-0104-00.zip|File Transfer Utility From TDS Scope To PC 066-0104-00]] (ZIP)
* [[Media:Ttip.zip|Telecom Test and I-Pattern Software TTiP 066-0119-00]] (ZIP)
* [[Media:066-0125-00.zip|Enhanced Printing Utility for TDS Family 066-0125-00]] (ZIP)
* [[Media:Tdsrteup_(TDS_runtime_Environment_TDSRTE1).zip|TDS runtime Environment TDSRTE1 066-0127-00]] (ZIP)
* [[Media:066-0176-00.zip|WFM to ASCII Waveform Converter - UNIX Version For Sun Spark Stations 066-0176-00]] (ZIP)
* [[Media:066-0177-00.zip|Hardcopy from TDS to PC Using HPIP 82335B Interface Card 066-0177-00]] (ZIP)
* [[Media:066-0178-00.zip|Example Program To Get Crossing Levels 066-0178-00]] (ZIP)
* [[Media:066-0179-00.zip|TDS ISF File To CSV File Conversion Utility 066-0179-00]] (ZIP)
* [[Media:066-0188-00.zip|Transfer 2 Byte Data From TDS Oscilloscopes QuickBasic 066-0188-00]] (ZIP)
* [[Media:066-0194-00.zip|TDS Waveform Logging Sample Program 066-0194-00]] (ZIP)
* [[Media:066-0196-00.zip|Load TDS Floppy MathCAD Files Into MathCAD 066-0196-00]] (ZIP)
* [[Media:066-0197-00.zip|Transfer TDS Hardcopy Screens To PC Via GPIB 066-0197-00]] (ZIP)
* [[Media:066-0198-00.zip|Transfer Setups Between TDS Oscilloscopes 066-0198-00]] (ZIP)
* [[Media:066-0200-00.zip|VB Program To Capture TDS Extended Waveforms 066-0200-00]] (ZIP)
* [[Media:066-0489-00.zip|TDS Series WFM File Formatter 066-0489-00]] (ZIP)
* [[Media:Wavestar_2012.05.09.11.07.29_16456_EN.zip|Tektronix Wavestar 2012.05.09.11.07.29 16456 EN 066-0934-03]] (ZIP, 102MB) ''Product Key: WSTRO618650124''
 
==Firmware==
* [[Media:TDS644A_v3.8.4e_Firmware.zip|TDS644A v3.8.4e Firmware]] (ZIP)
 
* [[Media:TDS644B_v4.2e_Firmware.zip|TDS644B v4.2e Firmware]] (ZIP)
 
 
==Options==
* 05 - Video Trigger                              - Oscilloscope comes with tools that allow investigation of a range of NTSC, PAL, SECAM, and high definition TV signals.
* 1M - 4M acquisition length                      - Extends standard acquisition length from 50,000 points per channel to 130,000 samples on three or four channels, 250,000 samples on two channels, and 500,000 samples on one channel.
* 13 - RS-232C and Centronics hardcopy interfaces - Add RS-232-C and Centronics interface ports.
* 1F - Floppy disk drive                          - Add 3.5 inch, 1.44 MByte floppy disc drive.
* 2F - Advanced DSP math                          - Add advanced DSP math features such as FFT, integration, and differentiation.
 
==Optional Accessories==
* 1K - Add K420 scope cart
* 1R - Rackmount kit
* 2D - Delete standard 2 P6205 probes
* 24 - Add 4 each P6139A passive probes
* 25 - (TDS644A) Add 4 each P6563AS 20X SMD probes
* 2P - Tektronix Phaser 200e Thermal Wax Transfer Color Printer
* 4D - Delete standard 4 P6205 probes
* 95 - TDS644A Calibration data report
* 96 - TDS644A Calibration Certificate
* D1 - TDS644B Calibration Data Report
 
==TDS644A Included Accessories==
* 4x P6205 FET Probes
* 070-8711-02 - Reference Manual
* 070-8711-01 - User Manual
* 200-3696-01 - Front cover
* 161-0230-01 - US power cord
 
==TDS644B Included Accessories==
* 4x P6243 FET Probes
* 070-9382-00 - Quick Reference Guide
* 063-2773-00 - Programmers Manual in MS-Help format on floppy disk
* 070-6869-00 - User Manual
* 070-9874-02 - Technical Reference Manual
* 200-3696-01 - Front cover
* 161-0230-01 - US power cord
* 016-1268-00 - Accessory Pouch
 
==Recommended Accessories==
* 012-0991-01 - 1m GPIB cable
* 012-0991-00 - 2m GPIB cable
* 012-1298-00 - RS-232 cable
* 012-1250-00 - Centronics cable
* 016-0909-01 - Soft-sided carrying case
* 016-01135-00 - Transit case
* K420 - Scope cart
 
==Links==
* Tek Forum threads:
** [http://forum.tek.com/viewtopic.php?f=568&t=140017/  Recovering the unit from a bricked state]
** [http://forum.tek.com/viewtopic.php?f=568&t=139999&hilit=TDS784/ Firmware updating]
** [http://forum.tek.com/viewtopic.php?f=568&t=138168&hilit=TDS784/ Backing up and restoring calibration data]
* EEVBlog Forum Threads:
** [http://www.eevblog.com/forum/testgear/hackingupgrading-old-scope-(tds754d)/ EEVBlog Forum thread on TDS options and how to enable them]
** [https://www.eevblog.com/forum/repair/unified-tektool-released-!-(firmware-flash-tools-for-old-tds-series)/ Firmware update via GPIB]
** [https://www.eevblog.com/forum/repair/tektronix-tds500-700-debug-konscole-interface/ Serial debug and console interface card for TDS500-700 series]
** [https://www.eevblog.com/forum/testgear/console-port-debug-adapter-for-tek-tds500-tds600-and-tds700-series-scopes/ Console port debug adapter for TDS500-700 series]
* [https://simmconnlabscom.ipage.com/store/page5.html Simmconn Labs LCD replacement kits for CRT-based TDS O-scopes]
* [https://www.tek.com/support/faqs/i-lost-my-wavestar-keycode-how-can-i-get-it-back Wavestar Product Key]
* [https://www.hakanh.com/dl/TDSErrLog.htm TDS error log viewer]
* [http://www.ko4bb.com/getsimple/index.php?id=enable-tds754d-options Unlocking software options - ko4bb.com]
 
==Pictures==
<gallery>
TDS644A front.jpg
TDS644A back.jpg
</gallery>
 
 
[[Category:TDS600 series scopes]]
[[Category:RS-232 interface]]
[[Category:Parallel printer interface]]
[[Category:GPIB interface]]

Revision as of 10:02, 3 December 2022

Tektronix TDS644
500 MHz, 2 GS/s, 4-Ch digital scope
Tektronix TDS644A

Produced from 1994 to (?)

Manuals

TDS644A

TDS644B

Schematics

Common

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix TDS644A 4 Channel Digitizing Oscilloscope has a real-time bandwidth of 500 MHz and a sample rate of 2 GS/s, with a record length of up to 2,000 points per channel.
The Tektronix TDS644B has a sample rate of 2.5 GS/s, with a record length of up to 15,000 points per channel.

Features include Waveform Math and Advanced Waveform DSP, Color VGA Display, 3.5" DOS Format Floppy Drive, RS-232 interface, Centronics, GPIB and VGA Connector. Inputs have Tekprobe BNC connectors.

Opt.05 adds video trigger for NTSC, PAL, HDTV.

Key Specifications

Bandwidth 500 MHz
Sampling rate 2 GS/s (TDS644A), 2.5 GS/s (TDS644B) on all 4 channels
Time base 500 ps/Div to 5 s/Div
Deflection 1 mV/Div to 10 V/Div
Resolution 8 bits
Record length 500 to 2000 points (TDS644A), 15,000 points (TDS644B)
Input impedance 1 MΩ // 10 pF, or 50 Ω
Interface GPIB standard
Options
  • Centronics interface (standard)
  • RS-232 interface (standard)
  • FFT, integration and differentiation (standard)

Software


Firmware


Options

  • 05 - Video Trigger - Oscilloscope comes with tools that allow investigation of a range of NTSC, PAL, SECAM, and high definition TV signals.
  • 1M - 4M acquisition length - Extends standard acquisition length from 50,000 points per channel to 130,000 samples on three or four channels, 250,000 samples on two channels, and 500,000 samples on one channel.
  • 13 - RS-232C and Centronics hardcopy interfaces - Add RS-232-C and Centronics interface ports.
  • 1F - Floppy disk drive - Add 3.5 inch, 1.44 MByte floppy disc drive.
  • 2F - Advanced DSP math - Add advanced DSP math features such as FFT, integration, and differentiation.

Optional Accessories

  • 1K - Add K420 scope cart
  • 1R - Rackmount kit
  • 2D - Delete standard 2 P6205 probes
  • 24 - Add 4 each P6139A passive probes
  • 25 - (TDS644A) Add 4 each P6563AS 20X SMD probes
  • 2P - Tektronix Phaser 200e Thermal Wax Transfer Color Printer
  • 4D - Delete standard 4 P6205 probes
  • 95 - TDS644A Calibration data report
  • 96 - TDS644A Calibration Certificate
  • D1 - TDS644B Calibration Data Report

TDS644A Included Accessories

  • 4x P6205 FET Probes
  • 070-8711-02 - Reference Manual
  • 070-8711-01 - User Manual
  • 200-3696-01 - Front cover
  • 161-0230-01 - US power cord

TDS644B Included Accessories

  • 4x P6243 FET Probes
  • 070-9382-00 - Quick Reference Guide
  • 063-2773-00 - Programmers Manual in MS-Help format on floppy disk
  • 070-6869-00 - User Manual
  • 070-9874-02 - Technical Reference Manual
  • 200-3696-01 - Front cover
  • 161-0230-01 - US power cord
  • 016-1268-00 - Accessory Pouch

Recommended Accessories

  • 012-0991-01 - 1m GPIB cable
  • 012-0991-00 - 2m GPIB cable
  • 012-1298-00 - RS-232 cable
  • 012-1250-00 - Centronics cable
  • 016-0909-01 - Soft-sided carrying case
  • 016-01135-00 - Transit case
  • K420 - Scope cart

Links

Pictures