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ACVS: Difference between revisions
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(Created page with "Tektronix 11000-series plug-ins contain a subsystem called the Analog Control Voltage System (ACVS). The ACVS produces several independently controllable DC voltages. The volt...") |
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The ACVS comprises three parts: | The ACVS comprises three parts: | ||
* | * [[Media:AD667.pdf|AD667]] 12-bit DAC (single output) | ||
* [[CD4051]] analog switches and holding capacitors, implementing a set of sample and hold circuits | * [[Media:Cd4051b-q1.pdf|CD4051]] analog switches and holding capacitors, implementing a set of sample and hold circuits | ||
* [[TL074]] opamps, providing a set of unity-gain output buffers | * [[Media:Tl074.pdf|TL074]] JFET-input opamps, providing a set of unity-gain output buffers | ||
The output from the DAC is sampled and held, and the buffered voltages are fed to the rest of the plug-in. | |||
The voltages in the sample and hold are periodically refreshed. | |||
The ACVS is controlled by the [[M382]] chip, which also implements [[SDI]] and sequences the amplifier output enable signals. | The ACVS is controlled by the [[M382]] chip, which also implements [[SDI]] and sequences the amplifier output enable signals. | ||