2642: Difference between revisions

Latest revision as of 03:23, 11 September 2023

Tektronix 2642
200 kHz Fourier Analyzer Tektronix 2642 Produced from 1991 to 1995 Manuals Tektronix 2642A Reference Manual Tektronix 2642A Service Manual Tektronix 2642 Introduction Spec Tektronix 2642A Final Spec (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 2642A is an FFT analyzer with a DC to 200 kHz frequency range. It performs signal acquisition and processing, and uses a PC running MS-DOS connected via a serial port for mass storage and graphics.

It has two or four inputs with dedicated 12-bit (optionally 16-bit) ADCs, and an optional arbitrary function generator. Another option is a "zoom" feature that provides a span as small as 10 Hz about the frequency of interest.

Key Specifications

Frequency range	DC to 200 kHz
Real-time bandwidth	100 kHz max. (single channel autospectrum with fast additive averaging, display off, 2048 point frame size)
Dynamic range	75 dB, extended to 90 dB with Opt. 16 or 17 (16-bit ADCs)
Channels	2 (optionally 4), matched ±0.075 dB (DC to 50 kHz)
Transient Capture	500 K Samples, extended to 3.5 M with Opt. 6M (6 MB)
FFT performance	32-bit floating point FFT, 64 tp 4096 points
Spectral Lines	25 to 1600
Input Impedance	1 MΩ // 200 pF
Max Input Level	±30 V
Weight	Standard accessories: 12.3 kg (27 lbs)
Power	90 − 250 V_AC, 48 to 66 Hz, >120 W
Connections	Front panel: CH1-CH4 inputs, BNC connector; Signal generator output BNC connector (50 Ω; ±10 V); Rear panel: SYSTEM INTERCONNECT, male DB9 (TTL-level inputs; pin 1 trigger input, pin 2 trigger sense output, pin 3 external clock input; pins 6–8 signal ground, pin 9 external sampling input); SERIAL PORT, female DB9 to connect PC

Options

Opt. 1H: Four Input Channels
Opt. 16: Two 16-Bit Input Channels
Opt. 17: Four 16-Bit Input Channels
Opt. 6M: Large Data Memory (add 6 MB)

Software

DOS software and applications for 2622, 2630, 2641 and 2642

Internals

The 2642 uses a National NS32CG160 32/16-bit CPU and an AT&T DSP32C Digital Signal Processor.

Pictures

Tek 2642A CPU Board
Tek 2642A CPU Board
Tek 2642A CPU Board
Tek 2642A CPU Board
Tek 2642A CPU Board
Tek 2642A Channel Controller Board
Tek 2642A Channel Controller Board
Tek 2642A Channel Controller Board
Tek 2642A Channel Controller Board
Tek 2642A Channel Controller Board

@@ Line 1: / Line 1: @@
-The '''Tektronix 2642 "Personal Fourier Analyzer"''' is an FFT-based signal analysis instrument.
+{{Instrument Sidebar
+|manufacturer=Tektronix
+|model=2642
+|class=Spectrum Analyzer
+|summary=200 kHz Fourier Analyzer
+|image=Tek_2642a_7.jpg
+|caption=Tektronix 2642
+|introduced=1991
+|discontinued=1995
+|manuals=
+* [[Media:070-8403-01.pdf| Tektronix 2642A Reference Manual]]
+* [[Media:070-8693-00.pdf| Tektronix 2642A Service Manual]]
+* [[Media:Tek_2600_Series_Catalog_1991.pdf|Tektronix 2642 Introduction Spec]]
+* [[Media:Tek_2600_Series_Catalog_1994.pdf|Tektronix 2642A Final Spec]]
+}}
+The '''Tektronix 2642A''' is an [[wikipedia:Fast Fourier transform|FFT analyzer]] with a DC to 200 kHz frequency range.  It performs signal acquisition and processing, and uses a PC running MS-DOS connected via a serial port for mass storage and graphics.
-It contains a 16-bit arbitrary signal generator (0.5-200 kHz) and. two (optionally four) input channels with 12-bit (optionally 16-bit) ADCs followed by a 32-bit floating point FFT unit (up to 4K samples).
+It has two or four inputs with dedicated 12-bit (optionally 16-bit) ADCs, and an optional arbitrary function generator.  Another option is a "zoom" feature that provides a span as small as 10 Hz about the frequency of interest.
-The 2642 has no operator controls, it is driven by PC software thorugh its [[RS-232 interface]].
+{{BeginSpecs}}
+{{Spec | Frequency range     | DC to 200 kHz }}
+{{Spec | Real-time bandwidth | 100 kHz max. (single channel autospectrum with fast additive averaging, display off, 2048 point frame size) }}
+{{Spec | Dynamic range       | 75 dB, extended to 90 dB with Opt. 16 or 17 (16-bit ADCs)}}
+{{Spec | Channels            | 2 (optionally 4), matched ±0.075 dB (DC to 50 kHz) }}
+{{Spec | Transient Capture   | 500 K Samples, extended to 3.5 M with Opt. 6M (6 MB) }}
+{{Spec | FFT performance     | 32-bit floating point FFT, 64 tp 4096 points }}
+{{Spec | Spectral Lines      | 25 to 1600 }}
+{{Spec | Input Impedance     | 1 MΩ // 200 pF }}
+{{Spec | Max Input Level     | ±30 V }}
+{{Spec | Weight              | Standard accessories: 12.3 kg (27 lbs) }}
+{{Spec | Power               | 90 − 250 V<sub>AC</sub>, 48 to 66 Hz, >120 W }}
+{{Spec | Connections |
+Front panel: CH1-CH4 inputs, [[BNC connector]]; Signal generator output [[BNC connector]] (50 Ω; ±10 V);<br />
+Rear panel: SYSTEM INTERCONNECT, male [[DB9 connector|DB9]] (TTL-level inputs; pin 1 trigger input, pin 2 trigger sense output, pin 3 external clock input; pins 6–8 signal ground, pin 9 external sampling input);<br />
+SERIAL PORT, female [[DB9 connector|DB9]] to connect PC
+}}
+{{EndSpecs}}
-{{MissingSpecs}}
+==Options==
+* Opt. 1H: Four Input Channels
+* Opt. 16: Two 16-Bit Input Channels
+* Opt. 17: Four 16-Bit Input Channels
+* Opt. 6M: Large Data Memory (add 6 MB)
+==Software==
+* [[Media:Tektronix-2622,2630,2641,2642,Software_and_app._utilies_for_Tek_26xx_Fourier_Analyzer_2.26-2600.zip|DOS software and applications for 2622, 2630, 2641 and 2642]]
+==Internals==
+The 2642 uses a National NS32CG160 32/16-bit CPU and an AT&T DSP32C Digital Signal Processor.
-==Manuals==
-* [[Media:070-8403-01.pdf |Tektronix Personal Fourier Analyzer 2642A Reference Manual]]
-* [[Media:070-8693-00.pdf|Tektronix 2642A Service Manual]]
 ==Pictures==
 <gallery>
-Tek 2642a 1.jpg|2642A
+Tek_2642a_7.jpg
-Tek 2642a 2.jpg|2642A
+Tek 2642a 1.jpg
-Tek 2642a 3.jpg|2642A
+Tek 2642a 2.jpg
-Tek 2642a 4.jpg|2642A
+Tek 2642a 3.jpg
-Tek 2642a 5.jpg|2642A
+Tek_2642a_8.jpg
-Tek 2642a 6.jpg|2642A
+Tek 2642a 4.jpg
+Tek 2642a 5.jpg
+Tek 2642a 6.jpg
+Tek_2642a_9.jpg
+Tek_2642a_10.jpg
+Tek 2642a cpu board 1.jpeg|Tek 2642A CPU Board
+Tek 2642a cpu board 2.jpeg|Tek 2642A CPU Board
+Tek 2642a cpu board 3.jpeg|Tek 2642A CPU Board
+Tek 2642a cpu board 4.jpeg|Tek 2642A CPU Board
+Tek 2642a cpu board 5.jpeg|Tek 2642A CPU Board
+Tek 2642a channel controller board 1.jpeg|Tek 2642A Channel Controller Board
+Tek 2642a channel controller board 2.jpeg|Tek 2642A Channel Controller Board
+Tek 2642a channel controller board 3.jpeg|Tek 2642A Channel Controller Board
+Tek 2642a channel controller board 4.jpeg|Tek 2642A Channel Controller Board
+Tek 2642a channel controller board 5.jpeg|Tek 2642A Channel Controller Board
 </gallery>
-[[Category:Spectrum Analyzers]]
+[[Category:Spectrum analyzers]]
+[[Category:Manual needed]]