The transmitter and receiver are miniaturized receivers for infrared remote control systems. PIN diode and preamplifier are assembled on lead frame, the epoxy package is designed as IR filter. The demodulated output signal can directly be decoded by a microprocessor. TSOP1738 is the standard IR remote control receiver series, supporting all major transmission codes.
The sensor can be used for Proximity detection application along with a IR led in robotics and security systems. It receives IR signal at 38khz frequency.