If the analog signal exceeds the threshold VREF + VHYST/2, the digital signal changes its state (: 0 -> 1)
and simultaneously reduces the threshold which the signal must fall below in order for the state to return
to 0 by the amount VHYST. Thus, the threshold for the next state transition from 1 to 0 is VREF –
VHYST/2. The size of the hysteresis represents the width of a range-band inside of which the signal can
fluctuate (due to signal noise and interference) without an impulse being recorded.
Ranges:
VREF (Threshold) = -10 V .. +10V
VHYST (Hysteresis) = +100 mV...+4V
Low pass filter: None, 20 kHz, 2 kHz, 200 Hz
5.1.3.1.5 Block diagram