TSOP JS-1838B Infrared Remote Receiver
The TSOP JS-1838B Infrared Remote Receiver is a compact, high-performance IR sensor module designed to receive and decode infrared signals from remote controls. It is widely used in consumer electronics, DIY electronics projects, and automation systems. The module integrates a photodiode, amplifier, and demodulator in a single package, making it an easy-to-use and highly reliable solution for IR communication. With its high sensitivity and noise suppression capabilities, the JS-1838B ensures stable operation even under ambient light or long-distance transmissions.
How It Works
The JS-1838B receiver works by detecting infrared signals, typically modulated at a frequency of 38 kHz, which is standard for most remote controls. When the sensor receives a modulated IR signal, it demodulates it and outputs a clean digital signal (LOW pulse) to the connected microcontroller or circuit. This digital output can then be processed to identify specific commands sent by the remote The module is designed with built-in automatic gain control (AGC) and filters to reduce interference from sunlight fluorescent lamps, and other noise sources, ensuring accurate signal reception.
Key Features
High sensitivity infrared receiver module
Compatible with 38 kHz modulated IR signals
Long reception range up to 18 meters
Compact 3-pin design (VCC, GND, OUT)
Built-in AGC and noise suppression
Low power consumption
TTL and CMOS compatible output
Specifications
| Parameter | Value |
|---|---|
| Model | JS-1838B |
| Operating Voltage | 2.7V – 5.5V |
| Carrier Frequency | 38 kHz |
| Reception Distance | Up to 18 meters |
| Output Signal | Active LOW |
| Viewing Angle | ±45° |
| Operating Current | ~0.4 mA |
| Operating Temp. Range | -25°C to +85°C |
| Pin Count | 3 (VCC, GND, OUT) – |
Pin Configuration
| Pin | Name | Description |
|---|---|---|
| 1 | OUT | Digital output |
| 2 | GND | Ground connection |
| 3 | VCC | Power supply |
Applications
Infrared remote control systems
Home appliances (TV, audio systems, set-top boxes)
Robotics and automation projects
DIY Arduino and microcontroller projects
IR communication and learning projects
Wireless control for lighting and fans
