Description:
The TSOP1738 is an infrared receiver module designed to detect infrared light signals modulated at a frequency of 38kHz. This specific frequency is very common in IR remote control applications, making the TSOP1738 highly versatile.
It integrates a PIN photodiode and a preamplifier into a single package, along with an internal filter to suppress ambient light interference. This integration simplifies the design of IR-based control systems.
Essentially, it receives the infrared light emited from a infrared led, that is modulated at 38Khz, and outputs a digital signal.
Key Features:
- Integrated Photodetector and Preamplifier: Simplifies circuit design.
- Internal Filter for PCM Frequency: Provides high immunity to ambient light.
- High Immunity to Ambient Light: Minimizes false triggering.
- TTL and CMOS Compatibility: Easy interfacing with microcontrollers.
- Low Power Consumption: Suitable for battery-powered devices.
- Compact Size: Facilitates integration into small devices.
Applications:
- IR Remote Control Systems: Used in televisions, DVD players, stereos, and other consumer electronics.
- Remote Control for DIY Projects: Ideal for Arduino and Raspberry Pi projects involving IR control.
- Robotics: Used for obstacle detection and remote control of robots.
- Security Systems: Implemented in IR-based alarm systems.
- Home Automation: Used in IR-controlled lighting and appliances.
Specifications:
- Supply Voltage: 5V
- Power Consumption: 0.4 to 1.0 mA
- Center Frequency: 38 kHz
- Angle of Detection: Approximately 90 degrees
- Operating Temperature: -25°C to +85°C
DATA SHEET AND USECASE
Key Specification
- Operating voltage: 2.7V to 5.5V
- Carrier frequency: 38kHz
- Low power consumption
- High immunity to ambient light and noise
- Built-in pre-amplifier and demodulator
- Output: Active LOW when IR signal is received
