IR receiver module TSOP38238

The TSOP38238 is an infrared (IR) receiver module designed for remote control systems. It operates at a carrier frequency of 38 kHz, which is a common standard for many consumer electronics remote controls. The module is specifically tuned to receive IR signals modulated at this frequency, making it highly sensitive and reliable for its designated applications.

This module features a built-in band-pass filter, an automatic gain control (AGC), and a demodulator, all integrated into a single package. These features enhance its ability to detect and process the IR signals effectively, even in the presence of ambient light or other potential interferences. The TSOP38238 is designed to ignore continuous signals from sources like fluorescent lamps and other steady-state IR emitters, thereby only responding to the pulsed signals from remote controls.

Physically, the TSOP38238 is encapsulated in a small, epoxy package which acts as an IR filter. This package is optimized for minimizing the effects of visible light, ensuring that the receiver is less susceptible to light noise. It typically requires a supply voltage of 2.5 to 5.5 volts, making it compatible with a variety of electronic devices, from televisions and DVD players to air conditioning units and other household appliances.

The output of the TSOP38238 is active low and can directly drive a microcontroller or another digital circuit for further processing of the received signals. This makes it a versatile component for developing robust IR remote control applications, providing ease of use and high integration for system designers.