Infrared receiver 38khz vishay tsop4838 this device is a miniaturised receiver for infrared remote control systems a pin diode and preamplifier are mounted on the lead frame and the epoxy package is utilised as an ir filter the demodulated output signal can directly be decoded by a microprocessor deisgned for use in infrared pcm remote control systems vishay tsop4838 infrared receiver 38khz