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- Model SRS - Digital Delay / Pulse ...
Model SRS -Digital Delay / Pulse Generator (4 ch.)
Four independent delay channels. Two fully-defined pulse channels. 5 ps delay resolution. 50 ps rms jitter. Adjustable amplitude and offset. Delays up to 1000 seconds. Standard GPIB interface. Optional ±32 V output.
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| Delays | |
| Channels | Four independent delay outputs |
| Range | 0 to 999.999,999,999,995 seconds |
| Resolution | 5 ps |
| Accuracy | 1500 ps + timebase error × delay |
| Timebase | Standard: 25 ppm crystal oscillator Optional: 1 ppm TCXO (opt. 03) External: 10.0 MHz reference input |
| RMS jitter | <50 ps + 10-8 × delay (T0 to any output) <60 ps + 10-8 × delay (ext. trigger to any output) |
| Trigger delay (typ.) | 85 ns (ext. trigger to T0 output) |
| External Trigger | |
| Rate | DC to 1/(1 µs + longest delay) |
| Threshold | ±2.56 VDC |
| Resolution | 10 mV |
| Slope | Trigger on rising or falling edge |
| Impedance | 1 MΩ + 40 pF or 50 Ω |
| Internal Rate Generator | |
| Rate | Single shot, 0.001 Hz to 1.000 MHz, or Line |
| Resolution | Four digits, 0.001 Hz below 10 Hz |
| Accuracy | Same as timebase |
| Jitter | 1:10,000 |
| Settling | <2 seconds for any rate change |
| Burst mode | 2 to 32766 pulses per burst at integer multiples (4 to 32767) of the trigger period |
| Outputs | |
| Load | 50 Ω or high impedance |
| Rise time | 2 to 3 ns (typ.) |
| Slew rate | 1 V/ns |
| Overshoot | <100 mV + 10 % of pulse amplitude |
| Levels | TTL: 0 to 4 VDC (normal or inverted) ECL: -1.8 to -0.8 VDC (normal or inverted) NIM: -0.8 to 0.0 VDC (normal or inverted) VAR: Adjustable offset and amplitude between -3 and +4 VDC with 10 mV resolution. 4 V maximum transition. |
| Accuracy | ±(50 mV + 3 % of pulse amplitude) |
| Option 02 | Rear panel 1 µs pulses corresponding to T0, A, B, C, D outputs with nominal amplitude of 8× the front-panel outputs at 1kHz rep rate. Output level reduced by 2 V/mA of additional average output current. |
| Fast Rise Time (opt. O4A) | |
| Output amplitude | +0.5 to 2.0 VDC |
| Output offset | -0.8 VDC (typ.) |
| Transition time Rise (20/80 %) Fall (20/80 %) |
|
| Pulse aberrations Foot Ring |
4 % (typ.) ±5 % (typ.) |
| Fast Fall Time (opt. O4B) | |
| Output amplitude | -0.5 to -2.0 VDC |
| Output offset | +0.8 VDC (typ.) |
| Transition time Rise (20/80 %) Fall (20/80 %) |
2500 ps (max.) 100 ps (max.) |
| Pulse aberrations Foot Ring |
4 % (typ.) ±5 % (typ.) |
| General | |
| Display | Backlit 20-character LCD |
| Computer interface | GPIB (IEEE-488). All instrument functions and settings may be controlled over the interface bus. Interface queue can be viewed from the front panel. |
| Dimensions | 8.5" × 4.75" × 14" (WHL) |
| Weight | 10 lbs. |
| Power | 70 W, 100/120/220/240 VAC, 50/60 Hz |
| Warranty | One year parts and labor on defects in materials and workmanship |