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DC501: Difference between revisions
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Added Gerber file
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Jaredcabot (talk | contribs) (Added Gerber file) |
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{{TM500 | mfg=Tektronix | type=DC501 | function=100 MHz frequency counter | class=counter| image=Tek dc501 | {{TM500 | ||
* [ | | mfg=Tektronix | ||
| type=DC501 | |||
| function=basic 100 MHz frequency counter | |||
| class=counter | |||
| image=Tek dc501 1.jpg | |||
| introduced=1972 | |||
| discontinued=1980 | |||
| designers= | |||
|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}} | ||
[[ | {{Spec | Input frequency | 10 Hz to 100 MHz }} | ||
{{Spec | Gate time | 10 ms to 10 s in decade steps, plus Manual (totalize count of up to 10<sup>7</sup> events) }} | |||
{{Spec | Resolution | 7 digits }} | |||
{{Spec | Display | 7-digit LED, overflow indicator }} | |||
{{Spec | Input impedance | 1 MΩ // 20 pF, ×5/×10/×50 attenuator (front) or 50 Ω // 20 pF (rear) }} | |||
{{Spec | Time base stability | ≤1×10<sup>-5</sup>; Opt. 1, ≤5×10<sup>-7</sup> (0°C to +50°C after ½h warm-up) }} | |||
{{Spec | Time base drift | ≤1×10<sup>-5</sup>; Opt. 1, ≤1×10<sup>-7</sup> (per month) }} | |||
{{EndSpecs}} | |||
==Options== | |||
* 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) | |||
==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== | ||
<gallery> | <gallery> | ||
Tek dc501 1.jpg | Tek dc501 1.jpg | ||