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DC501: Difference between revisions
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{{TM500 | mfg=Tektronix | type=DC501 | function=basic 100 MHz frequency counter | class=counter| image=Tek dc501 1.jpg | introduced=1972 | discontinued=1980 | designers= |manuals= | {{TM500 | ||
* [[Media:070-1339-00.pdf|Tektronix DC501 Instruction Manual | |mfg=Tektronix | ||
|type=DC501 | |||
|function=basic 100 MHz frequency counter | |||
|class=counter | |||
|image=Tek dc501 1.jpg | |||
|introduced=1972 | |||
|discontinued=1980 | |||
|designers=Jim Geddes | |||
|manuals= | |||
* [[Media:070-1339-00.pdf|Tektronix DC501 Instruction Manual 070-1339-00]] OCR | |||
* [[Media:050-1276-00.pdf|DC501, DC502, DC503 Service Note 050-1276-00]] | |||
}} | }} | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
| Line 11: | Line 21: | ||
{{Spec | Time base drift | ≤1×10<sup>-5</sup>; Opt. 1, ≤1×10<sup>-7</sup> (per month) }} | {{Spec | Time base drift | ≤1×10<sup>-5</sup>; Opt. 1, ≤1×10<sup>-7</sup> (per month) }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
===Options=== | |||
==Options== | |||
* Option 1 – 5 MHz TCXO with 1:5 divider | * Option 1 – 5 MHz TCXO with 1:5 divider | ||
* Option 2 – Automatic Gate Control and Readout Scaling Circuit (automatically selects the 0 .1-, 1-, or 10-second measurement interval to display the largest number of digits without overflow) | * Option 2 – Automatic Gate Control and Readout Scaling Circuit (automatically selects the 0 .1-, 1-, or 10-second measurement interval to display the largest number of digits without overflow) | ||
==Links== | |||
{{Documents|Link=DC501}} | |||
==Rear Interface == | ==Rear Interface == | ||
{| class="wikitable" | |||
|- | |||
! Connector Pin | |||
! Signal | |||
|- | |||
| 28B || Second decimal point (D2) output | |||
|- | |||
| 27A || Internal scan clock disable input | |||
|- | |||
| 27B || MHz light output | |||
|- | |||
| 26A || Reset input/output | |||
|- | |||
| 25A || TS0 (Time Slot Zero) output | |||
|- | |||
| 25B || External scan clock input | |||
|- | |||
| 24B || Internal scan clock (2 kHz) output | |||
|- | |||
| 23B || Overflow output | |||
|- | |||
| 22B || MSD (most significant digit) | |||
|- | |||
| 20B || 2<sup>8</sup> BCD output, serial by digit | |||
|- | |||
| 20A || 2<sup>4</sup> BCD output, serial by digit | |||
|- | |||
| 21B || 2<sup>2</sup> BCD output, serial by digit | |||
|- | |||
| 19A || 2<sup>1</sup> BCD output, serial by digit | |||
|- | |||
| 19B || Data Good output | |||
|- | |||
| 17A || Signal input ground | |||
|- | |||
| 16A || Signal input | |||
|} | |||
==Gerbers== | |||
* [[Media:670-3300-00.zip|Divide-by-5 circuit board gerbers 670-3300-00]] (ZIP) | |||
==Pictures== | ==Pictures== | ||
| Line 42: | Line 76: | ||
Tek dc501 manual.jpg | Manual photo | Tek dc501 manual.jpg | Manual photo | ||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|DC501}} | |||