P7001: Difference between revisions
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[[File:P7001 front.jpg|thumb|350px|right|Tektronix P7001 front panel]] | |||
The '''Tektronix P7001''' is a digitizer, processor, and memory for the [[7704A]] oscilloscope. | The '''Tektronix P7001''' is a digitizer, processor, and memory for the [[7704A]] oscilloscope. | ||
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{{Spec | External interface | 16 bit parallel, proprietary "[[CP bus]]" (dual 37-pin [[Sub-D connector]]s) interfacing with Tektronix CP-1100 or CP-4100 series controllers }} | {{Spec | External interface | 16 bit parallel, proprietary "[[CP bus]]" (dual 37-pin [[Sub-D connector]]s) interfacing with Tektronix CP-1100 or CP-4100 series controllers }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Manuals== | |||
* [http://w140.com/p7001 Tektronix P7001 Manuals (PDF)] | |||
==Links== | ==Links== | ||
* [https://groups.io/g/TekScopes/topic/ | * [https://groups.io/g/TekScopes/topic/7648748 Thread on P7001 and interfaces] | ||
==Internals== | ==Internals== | ||
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The Acquisition Unit of the 7704A, the P7001 Processor, and the Display Unit of the 7704A are connected by the | The Acquisition Unit of the 7704A, the P7001 Processor, and the Display Unit of the 7704A are connected by the | ||
Acquisition-Processor-Display (APD) Interface shown below. | Acquisition-Processor-Display (APD) Interface shown below. | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
P7001 front.jpg|Front panel | P7001 front.jpg|Front panel | ||
Tek 7704a p7001 | Tek 7704a p7001 1.jpg|P7001 in [[7704A|7704A]] | ||
Tek 7704a p7001 2.jpg|P7001 in 7704A | Tek 7704a p7001 2.jpg|P7001 in [[7704A|7704A]] | ||
Tek 7704a p7001 nasa.jpg | Tek 7704a p7001 nasa.jpg | ||
</gallery> | </gallery> | ||
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P7001 frontpanel back.jpg|front panel rear | P7001 frontpanel back.jpg|front panel rear | ||
P7001 Extender boards.jpg|extender boards | P7001 Extender boards.jpg|extender boards | ||
P7001 user programmable card.jpg|blank card for user definable programs | P7001 user programmable card.jpg|blank card for user definable programs | ||
</gallery> | </gallery> | ||
''' | '''GPIB''' | ||
<gallery> | <gallery> | ||
P7001 GPIB adaper left dismounted.jpg | |||
P7001 GPIB adaper left mounted.jpg | |||
P7001 GPIB adaper right dismounted.jpg | |||
P7001 GPIB adaper left dismounted.jpg | |||
P7001 GPIB adaper left mounted.jpg | |||
P7001 GPIB adaper right dismounted.jpg | |||
</gallery> | </gallery> | ||
'''Sample and Hold Card''' | '''Sample and Hold Card''' | ||
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P7001 sample hold back.jpg|Sample and hold rear | P7001 sample hold back.jpg|Sample and hold rear | ||
</gallery> | </gallery> | ||
''' | '''Controller and memory''' | ||
<gallery> | <gallery> | ||
P7001 dpo controller.jpg|Controller card | |||
P7001 dpo controller board.jpg|Controller card | |||
P7001 dpo controller back.jpg|Controller card | |||
P7001 diode decoder.jpg|Address decoder | P7001 diode decoder.jpg|Address decoder | ||
P7001 core boards.jpg|Core boards | P7001 core boards.jpg|Core boards | ||
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Core20.jpg|Core closeup | Core20.jpg|Core closeup | ||
Core17.jpg|Core closeup | Core17.jpg|Core closeup | ||
P7001 2k memory.jpg|2K semiconductor memory (aka "MOS") | P7001 2k memory.jpg|2K semiconductor memory (aka "MOS") | ||
</gallery> | </gallery> | ||
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P7001 apd interconnect.jpg|APD Interconnect | P7001 apd interconnect.jpg|APD Interconnect | ||
</gallery> | </gallery> | ||
===Firmware (uploaded BIN files) === | ===Firmware (uploaded BIN files) === | ||
* | * P7001 U113 2708.BIN | ||
* | * P7001 U114 2708.BIN | ||
* | * P7001 U115 2708.BIN | ||
* | * P7001 U212 2708.BIN | ||
* | * P7001 U213 2708.BIN | ||
* | * P7001 U214 2708.BIN | ||
* | * P7001 U215 2708.BIN | ||
[[Category:7000 series scopes]] | [[Category:7000 series scopes]] | ||
[[Category:Digital storage scopes]] | [[Category:Digital storage scopes]] | ||
Revision as of 12:35, 28 July 2019
The Tektronix P7001 is a digitizer, processor, and memory for the 7704A oscilloscope.
The design of the P7001 assumes it will be part of a 7704A system, and that the 7704A will be displaying a steady trace. The vertical and horizonal plug-ins control the beam as they would in any 7000-series scope.
The P7001 periodically samples the horizontal and vertical signals simultaneously as they pass from the plug-ins to the vertical and horizontal amplifiers. This allows it to fill its memory with data points represented as coordinate pairs, (x1,y1), (x2,y2), (x3,y3), etc. It is not necessary that x2 be greater than x1, i.e. the samples can be taken out-of-order with respect to their equivalent time in the waveform.
Key Specifications
| Resolution | 10 bit (V), 9 bit (H) |
|---|---|
| Memory | four waveforms, 512 samples each (4K × 10 bit core, or multiple 1k × 10 bit or 2k × 10 bit RAM boards) |
| Sampling rate | 150 kHz ±30 kHz |
| External interface | 16 bit parallel, proprietary "CP bus" (dual 37-pin Sub-D connectors) interfacing with Tektronix CP-1100 or CP-4100 series controllers |
Manuals
Links
Internals
The signal coming from the acquisition unit enters a fast four-diode sample and hold circuit where it is sampled at 150 ksamples/sec. Each sample is digitized using a successive-approximation scheme. The analog to digital converter is made of several chips: a digital to analog converter, a comparator, and control logic.
The P7001 has its own power supply built into it, independent of the power supply in the acquisition unit of the 7704A. It has a backplane with an asynchronous bus and several cards that plug into that bus: sampler, analog to digital converter, memory, external digital interface, and display electronics. The P7001 was available with semiconductor memory or with magnetic core memory. Both types of memory were available through the whole production time of the P7001. In the first years the core memory module was cheaper and the default module. In later years the semiconductor memory module got cheaper and then this module was the default one. But the core memory module has one big adavantage: The memory content was preserved during a shutdown of the unit. This may have been the reason the core memory option remained available in the later years of P7001 production.
The bus is used for low speed signals. High speed signals are sent through coaxial cables that connect to the cards using Peltola connectors.
The Acquisition Unit of the 7704A, the P7001 Processor, and the Display Unit of the 7704A are connected by the Acquisition-Processor-Display (APD) Interface shown below.
Pictures
Internal
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Top view
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Front of backplane
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main interface board (backplane)
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Rear of backplane
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Interunit connector
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Interunit connector
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Interunit connector
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Switching power supply
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front panel rear
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extender boards
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blank card for user definable programs
GPIB
Sample and Hold Card
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Vertical sampling bridge
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Horizontal sampling bridge
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Sampling strobe generator
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Sample and hold edge connector
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Sample and hold transformers
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Sample and hold transformer
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Sample and hold rear
Controller and memory
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Controller card
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Controller card
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Controller card
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Address decoder
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Core boards
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Core memory
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Core closeup
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Core closeup
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2K semiconductor memory (aka "MOS")
ADC and Display
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Front panel connections
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ADC
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ADC rear
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Probe points on ADC
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Display generator
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Display generator rear
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Z-axis and panel controller
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Z-axis and panel controller rear
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Readout interface
Hardware signal Averager (HSA)
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HSA timing board. The HSA module (optional) performs signal averaging and can calculate a histogram.
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HSA memory board.
Schematics
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Power supply schematic 1
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Power supply schematic 2
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APD Interconnect
Firmware (uploaded BIN files)
- P7001 U113 2708.BIN
- P7001 U114 2708.BIN
- P7001 U115 2708.BIN
- P7001 U212 2708.BIN
- P7001 U213 2708.BIN
- P7001 U214 2708.BIN
- P7001 U215 2708.BIN