Pulse Instruments PI-451

Manuals – Specifications – Links – Pictures

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
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

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

• A21 – Output low level (connected to front panel banana jack)
• A22 – Output high level (connected to front panel banana jack)
• A24 (GND A23) – Pulse output (parallel to front panel output unless disconnected via internal switch)
• A27 (GND A26) – Rear trigger input
• A14 – Digital in bit 0 (LSB)
• A15 – Digital in bit 1
• A16 – Digital in bit 2
• A17 – Digital in bit 5
• A18 – Digital in bit 4
• A19 – Digital in bit 6
• A20 – Digital in bit 11
• A21 – Digital in bit 7
• A22 – Digital in bit 10
• A23 – Digital in bit 3
• A24 – Digital in bit 8
• A25 – Digital in bit 9

• A3, A4, B3, B4 – mainframe +11.5 V common return = signal ground

Manufacturer

Pulse Instruments

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 V_p-p
• PI-42460 Programmable Clock Driver Card, ±18 V, 20 V_p-p

For general-purpose pulse driving on a standalone basis, the modern equivalent is:

• PRL-470B, Variable Output Pulse Driver, −6 to +10 V, 16 V_p-p

Pictures

• 

  PI-451

• 

  PI-451 Inside

• 

  PI-451A front

• 

  PI-451A left

• 

  PI-451A right