Overview
The TSOP series of infrared (IR) receivers are designed for use in remote control systems. They are optimized to receive modulated infrared signals from an IR transmitter and output a demodulated digital signal. The TSOP receivers are widely used in consumer electronics such as TVs, DVD players, and other remote-controlled devices.
Features
- Supply Voltage: 2.7V to 5.5V
- Low Power Consumption
- High Immunity Against Ambient Light
- TTL and CMOS Compatible
- Wide Reception Angle
- Various Carrier Frequencies Available (e.g., 38 kHz)
- Short Burst Length
Pin Configuration
The TSOP receivers typically come in a 3-pin package. The pin configuration is as follows:
- OUT (Pin 1): Digital output signal
- GND (Pin 2): Ground
- VCC (Pin 3): Supply voltage
Functional Description
The TSOP IR receiver detects modulated IR signals at a specific frequency (e.g., 38 kHz). When it receives a valid IR signal, it demodulates it and outputs a low-level digital signal. In the absence of an IR signal or when the signal is invalid, the output remains high.
Applications
- Remote Controls
- Home Automation
- Consumer Electronics
- Industrial Control Systems
- Toys
Technical Specifications
- Carrier Frequency: Typically, 38 kHz (other frequencies available)
- Supply Current: Typically, 0.35 mA
- Output Current: Up to 5 mA
- Output Voltage: Low < 0.4V, High > 4.5V (at 5V VCC)
- Reception Distance: Up to 45 meters (depends on the transmitter power)