DC505A
The Tektronix DC505A is a 225 MHz counter/timer plug-in for the TM500 system.
Key Specifications
Frequency range | 0 Hz (DC coupled) / 10 Hz (AC coupled) to 225 MHz |
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Sensitivity | 50 mVRMS to 150 MHz, 100 mVRMS to 225 MHz (sine) |
Resolution | 7 digits |
Gate time | 0.01 s to 10 s in decade steps |
Stability | Standard: 1×10−5; Opt.1: 5×10−7 (0°C to +50°C, after 30 min warm-up) |
Long-term drift | Standard: 1×10−5 per month; Opt.1: 5×10−7 per month |
Features |
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Options |
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Links
Documents Referencing DC505A
Rear Interface
Connector Pin | Signal | Connector Pin | Signal |
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27B | DP5 (Opt.4 only) | 27A | Internal Scan Clock Disable |
26B | Manual Start-Stop | 26A | /RESET |
25B | Internal Scan Clock Out | 25A | Time Slot Zero |
24B | Internal Scan Clock Out | ||
23B | Overflow | ||
22A | Trig Level Out | ||
21B | BCD output 2 | ||
20B | BCD output 8 | 20A | BCD output 4 |
19B | Data Good | 19A | BCD output 1 |
18B | DP4 (Opt.4 only) | ||
17B | Ch B Input | 17A | Ch A GND |
16B | Ch B GND | 16A | Ch A Input |
15B | DP3 (Opt.4 only) | 15A | DP1 (Opt.4 only) |
14B | DP2 (Opt.4 only) | 14A | Ext Clock Input / 1 MHz Out |
Data is output serially by digit.
Pictures
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DC505A
Components
Some Parts Used in the DC505
Part | Part Number(s) | Class | Description | Used in |
---|---|---|---|---|
2N4249 | 151-0342-00 | Discrete component | PNP Si low noise amp. | DC501 • DC502 • DC503 • DC503A • DC504 • DC504A • DC505 • DC505A • DC508 • DC508A • DC509 • DC510 |
Mostek MK5007 | 156-0409-00 | Monolithic integrated circuit | four-decade BCD counter with latches and output multiplexer | 213 • DC505 • DC505A |
Some Parts Used in the DC505A
Part | Part Number(s) | Class | Description | Used in |
---|---|---|---|---|
2N4249 | 151-0342-00 | Discrete component | PNP Si low noise amp. | DC501 • DC502 • DC503 • DC503A • DC504 • DC504A • DC505 • DC505A • DC508 • DC508A • DC509 • DC510 |
Mostek MK5007 | 156-0409-00 | Monolithic integrated circuit | four-decade BCD counter with latches and output multiplexer | 213 • DC505 • DC505A |