Pulse Instruments PI-451: Difference between revisions
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==Rear interface== | ==Rear interface== | ||
* 3A | <small> | ||
* 21A – Output low level (connected to front panel banana jack) | {| | ||
* 22A – Output high level (connected to front panel banana jack) | |- valign="top" | ||
* 24A (GND | | | ||
* 27A (GND | * 3A / 4A – mainframe +11.5 V common return = signal ground | ||
* 14B – Digital | |||
* 15B – Digital | * 21A – Output low level (connected to green or blue front panel banana jack) | ||
* 16B – Digital | * 22A – Output high level (connected to red front panel banana jack) | ||
* 17B – Digital | * 24A (23A GND) – Pulse output (parallel to front panel output unless disconnected via internal switch) | ||
* 18B – Digital | * 27A (26A GND) – Rear trigger input | ||
* 19B – Digital | * 25A – /PS Plugin select, must be 0 to load data | ||
* 20B – Digital | * 28A – /MS Mainframe select, must be 0 to load data | ||
* 21B – Digital | | | ||
* 22B – Digital | * 3B / 4B – mainframe +11.5 V common return = signal ground | ||
* 23B – Digital | |||
* 24B – Digital | * 14B – Digital input bit 0 (LSB) 12.2 mV | ||
* 25B – Digital | * 15B – Digital input bit 1 | ||
* | * 16B – Digital input bit 2 | ||
* 17B – Digital input bit 5 | |||
* 18B – Digital input bit 4 | |||
* 19B – Digital input bit 6 | |||
* 20B – Digital input bit 11 (sign) 1=negative 0=positive | |||
* 21B – Digital input bit 7 | |||
* 22B – Digital input bit 10 (MSB) 12.5 V | |||
* 23B – Digital input bit 3 | |||
* 24B – Digital input bit 8 | |||
* 25B – Digital input bit 9 | |||
* 26B – DS Data strobe, must go 0→1 to load data | |||
* 27B – Digital GND | * 27B – Digital GND | ||
* | * 28B – LS Level select, 0 = select DAC for low output level, 1 = select DAC for high output level | ||
|} | |||
</small> | |||
Data <code>000000000000</code> = +24.9875 V, <code>011111111111</code> = 0.0 V, <code>111111111111</code> = −25.00 V | |||
==Manufacturer== | ==Manufacturer== |
Revision as of 14:08, 20 February 2022
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.
Key Specifications
Output high level | +25 V to –24 V open circuit, or +12.5 V to –12 V into 50 Ω |
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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 |
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Opt. 002 adds an additional TTL clock input and a high level output are provided on the rear interface along with 12 bit parallel digital programming inputs.
Rear interface
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Data 000000000000
= +24.9875 V, 011111111111
= 0.0 V, 111111111111
= −25.00 V
Manufacturer
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:
Pictures
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PI-451
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PI-451 Inside
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PI-451A front
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PI-451A left
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PI-451A right