Pulse Instruments PI-451
The Pulse Instruments PI-451 is a MOS/CCD driver plug-in for the TM500 system.
The PI-451 is described as a "MOS/CCD Driver", the PI-451A as a "Programmable Pulse Driver."
A TTL-level input pulse controls an output with programmable high and low voltages and transition times.
|Output high level||+25 V to –24 V open circuit, or +12.5 V to –12 V into 50 Ω|
|Output low level||+24 V to –25 V open circuit, or +12 V to –12.5 V into 50 Ω|
|Output swing||1 V min. to 30±3 V max. open circuit, or 0.5 V min. to 15±1.5 V max. into 50 Ω|
|Output level control||manual, voltage programming (1:1, offset ≤80 mV @ ×1 transition time), or (Opt.002) digital|
|Transition time||2 ns/V to 2 μs/V @ 25 V and 100 pF load, continuously variable in 3 ranges, independent leading and trailing edge controls|
|Trigger input||TTL level, 2−5 V into 50 Ω|
|Trigger output||TTL level, 3 V into 50 Ω, delayed 100 ns from input|
|Delay||15 ns or ≤100 ns to ≥100 μs from trigger output, 3 decade ranges + 10:1 variable|
|Pulse width||same as input, or ≤100 ns to ≥100 μs, 3 decade ranges + 10:1 variable|
|Max. frequency||10 MHz @ 20 V, 20 pF down to 4 MHz @ 25 V, 300 pF|
|Options||Opt. 002 – digitally programmable output voltage levels (12 bit parallel TTL), plus additional TTL clock input and a high level output on the rear interface|
For driving FPA and CCD clocks in a multi-channel system, the modern equivalents from Pulse Instruments are:
- PI-41401 Programmable Clock Driver Card, −5 to +8 V, 9 Vp-p
- PI-42460 Programmable Clock Driver Card, ±18 V, 20 Vp-p
For general-purpose pulse driving on a standalone basis, the modern equivalent is: