The Vishay TSOP1838 is an IR receiver module for remote control systems. Operating at a carrier frequency of 38 kHz, it's designed to receive infrared signals transmitted by remote controls. This module integrates a photodiode, preamplifier, and an automatic gain control (AGC) circuit in a compact epoxy package, providing a reliable and efficient solution for IR remote control applications.

Applications

• Infrared remote control systems for televisions
• Infrared remote control systems for set-top boxes
• Infrared remote control systems for audio equipment
• Remote control for air conditioners
• Home automation systems

Features

• High immunity against ambient light and noise
• Continuous data transmission possible up to 2400 bps
• AGC to suppress disturbing signals
• Supply voltage: 2.5 V to 5.5 V
• Carrier frequency: 38 kHz
• Low power consumption
• Output active low

Benefits

• Reliable performance in noisy environments due to high immunity against ambient light and noise.
• Versatile data transmission capabilities, supporting continuous data up to 2400 bps.
• Improved signal reception due to the automatic gain control suppressing unwanted signals.
• Wide supply voltage range of 2.5 V to 5.5 V allows for flexible integration into various electronic devices.
• Reduced power consumption, extending the battery life of portable devices.

Additional Details

The TSOP1838 is designed to operate over a supply voltage range of 2.5 V to 5.5 V. The AGC (Automatic Gain Control) feature helps to improve the module's performance by automatically adjusting the gain to compensate for variations in the received signal strength and minimize the effects of noise. The output of the TSOP1838 is active low, meaning that the output signal goes low when a valid IR signal at 38 kHz is detected.