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The Universal Discriminator features two units, each functions as a simple discriminator with threshold ranging from 2 to -2V to convert a pulse into a NIM or TTL-compatible digital signal. The function of the two outputs for each input can be programmed to be direct or differential with a polarity selection of the rising or falling edge. It can be abused as a NIM->TTL converter and vice versa. All selection parameters can be programmed via a USB bus.
The device is a modular unit to be powered by a Eurocard rack system (sold separately).
Electrical Signal Specifications:
|NIM output amplitude high (typical)
||-200mV (RLOAD =50 Ohm)
|NIM output amplitude low (typical)
||-800mV (RLOAD = 50 Ohm)
|TTL output amplitude high (typical)||2.5V (RLOAD = 50 Ohm)|
|TTL output amplitude low (typical)||2V (RLOAD = 50 Ohm)|
|Minimum input pulse width||~20ns|
|Output Pulse Width||min 1ns