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1uS LIGHT PULSE
DISCRIMINATOR PLUS F TO V CONVERTER
This circuit is designed to detect the narrow 1uS pulses produced by the above
amplifier circuit. The clean logic type pulses produced by the discriminator
are then sent to a frequency to voltage converter. The circuit is designed to
process a pulse frequency of 10KHz that is frequency modulated by voice audio
signals. The circuit is described in more detail in the receiver circuit
section of my
Handbook of Optical Through the Air Communications. Note: Since the
MF6-50 switched capacitor filter IC is no longer available; this circuit is
for reference only. Use circuit number Discriminator in place of the IC
filter.
