TSOP1738 Infrared Receiver Module

The TSOP1738 Infrared Receiver Module is a high-performance IR sensor designed to receive and decode modulated infrared signals at a frequency of 38kHz. It’s commonly used in TV remotes, IR communication systems, and wireless control applications involving Arduino, Raspberry Pi, ESP32, and other microcontrollers.

This compact and sensitive IR receiver module can detect signals from standard IR remote controls and convert them into digital output. It includes a built-in photodetector and demodulator circuit, ensuring accurate signal decoding with excellent noise immunity and low power consumption.

Whether you're building a custom remote-controlled device or a home automation system, the TSOP1738 is an essential component for reliable and accurate IR signal reception.

Key Features:

• ✅ 38kHz Carrier Frequency
  Optimized for most standard IR remote controls operating at 38kHz.

• ✅ Digital Output Signal
  Outputs a clean LOW pulse when it receives an IR signal, ideal for microcontroller input.

• ✅ High Sensitivity & Range
  Can detect signals from up to 10–15 meters under proper alignment and lighting conditions.

• ✅ Built-In Demodulator
  Filters out ambient light and provides noise-free signal decoding.

• ✅ Low Power Consumption
  Consumes minimal current, ideal for battery-powered IR systems.

• ✅ Easy to Interface
  3-pin configuration: VCC, GND, OUT, compatible with Arduino, Raspberry Pi, and other platforms.

Specifications:

• Operating Voltage: 2.5V – 5.5V DC

• Carrier Frequency: 38kHz

• Output: Active LOW digital signal

• Reception Distance: 10–15 meters (typical)

• Angle of Reception: ±45°

• Interface: 3 pins (VCC, GND, OUT)

• Package Type: 3-pin epoxy lens package

• Built-in preamplifier and filter