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7912: Difference between revisions
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The resolution of the target is 512×512, giving 512 points in the time domain and 9-bit linear quantization of the input voltage. | The resolution of the target is 512×512, giving 512 points in the time domain and 9-bit linear quantization of the input voltage. | ||
With a [[7B92]] sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep, | With a [[7B92]] sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep, the 7912 performs the function of a 100 GSample/s A/D converter. | ||
the 7912 performs the function of a 100 GSample/s A/D converter. | |||
The primary markets for the 7912 series were nuclear and laser research. | The primary markets for the 7912 series were nuclear and laser research. | ||
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The reading beam operates differently depending on the output mode. | The reading beam operates differently depending on the output mode. | ||
In TV mode, the reading beam scans the target in a horizontal format similar to that used in conventional television systems, | In TV mode, the reading beam scans the target in a horizontal format similar to that used in conventional television systems, and a video output compatible with TV monitors is generated. In Digital mode, the reading beam scans the target vertically, | ||
and a video output compatible with TV monitors is generated. In Digital mode, the reading beam scans the target vertically, | |||
in 512 discrete steps for each of 512 horizontal positions. | in 512 discrete steps for each of 512 horizontal positions. | ||
Waveforms are converted to digital, stored in memory, and can be read by a computer. | Waveforms are converted to digital, stored in memory, and can be read by a computer. | ||
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The R7912 had a proprietary digital interface. A card for interfacing to a DEC PDP-11 was available. | The R7912 had a proprietary digital interface. A card for interfacing to a DEC PDP-11 was available. | ||
The Tektronix 067-0679-00 aka [[1350]] "Digital Display Controller" or "Memory Display Unit" | The Tektronix 067-0679-00 aka [[1350]] "Digital Display Controller" or "Memory Display Unit" is an external module that interfaces the R7912 to X-Y monitors. | ||
is an external module that interfaces the R7912 to X-Y monitors. | |||
Tek also offered configurations with multiple R7912s on a common controller within the WP2000 series. | Tek also offered configurations with multiple R7912s on a common controller within the WP2000 series. | ||
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</gallery> | </gallery> | ||
==Parts== | |||
{{Custom ICs|7000 series readout system}} | {{Custom ICs|7000 series readout system}} | ||
{{ | {{Parts|R7912}} | ||
{{ | {{Parts|7912AD}} | ||
{{ | {{Parts|7912HB}} | ||
[[Category:7000 series digitizer mainframes]] | [[Category:7000 series digitizer mainframes]] | ||