7B90P: Difference between revisions
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* [[Media:070-2309-00.pdf|7B90P Instruction Manual]] (OCR) | * [[Media:070-2309-00.pdf|7B90P Instruction Manual]] (OCR) | ||
* [[Media:Tek 7b90p schematics.pdf|7B90P Schematics]] | |||
* [[Media:47W-4493-1.pdf|7A16P and 7B90P Brochure]] | * [[Media:47W-4493-1.pdf|7A16P and 7B90P Brochure]] | ||
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==Links== | ==Links== | ||
{{Documents|Link=7B90P}} | {{Documents|Link=7B90P}} | ||
{{PatentLinks|7B90P}} | |||
==Internals == | ==Internals == | ||
Latest revision as of 13:54, 21 June 2024
The Tektronix 7B90P is a digitally programmable 400 MHz time-base plug-in for the digitizing mainframes of the 7000 series. All controls are programmable except for the sweep calibration screwdriver adjustment and the external trigger input terminator switch. The local/remote state of the 7B90P is slaved to the local/remote state of the mainframe.
Key Specifications
| Sweep | 10 ns/Div to 500 ms/Div (1–2–5), ×10 magnifier (down to 500 ps/Div), no variable sweep, adjustable and programmable holdoff |
|---|---|
| Excluded sweep | First 10 ns in 79XX programmable mainframes |
| Trigger Sensitivity |
|
| Jitter | <100 ps at 400 MHz |
| Ext. Trigger | 1 MΩ: 20 pF, max. 250 V DC+peak AC; 50 Ω: max. 1 W |
| Sweep/Trigger Modes | Peak-Peak Auto, Auto, Norm, Single Sweep |
Links
Documents Referencing 7B90P
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| Tekscope 1979 V11 N1.pdf | Article | An Intelligent, Programmable Transient Digitizer | Dale Aufrecht | 1979 | 7912AD • 7A16P • 7B90P |
Internals
The 7B90P is controlled by a Motorola 6800 microprocessor.
Pictures
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Front
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Front
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Right
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Right
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Left
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A late version of the 7B90P with connectors for the 021-0374-00 GPIB decoder
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Connectors for the 021-0374-00 GPIB decoder on a late 7B90P
