TSOP 1838 IR receiver

The TSOP 1838 is a compact IR (Infrared) receiver module designed for use in remote control systems. It can detect modulated IR signals at 38 kHz, making it ideal for applications such as remote control reception, IR data transmission, and IR-based communication systems. The TSOP 1838 provides high sensitivity and reliable performance in a small package.

Key Features:

• Pin diode and preamplifier in one package
• Modulated IR signal detection at 38 kHz
• High sensitivity and excellent noise immunity
• Low power consumption
• TTL and CMOS compatible output
• Internal filter for PCM frequency
• Improved shielding against electrical field disturbance
• Suitable for continuous and burst data transmission

Technical Specifications:

• Carrier Frequency: 38 kHz
• Supply Voltage: 2.7V to 5.5V
• Supply Current: 0.4 mA (typical)
• Peak Wavelength: 940 nm
• Reception Range: Up to 45 meters (with proper IR transmitter)
• Viewing Angle: ±45 degrees
• High-Level Output Voltage: ≥ Vcc – 0.2V
• Low-Level Output Voltage: ≤ 0.2V
• Output Pulse Width: Typically 400 µs
• Operating Temperature Range: -25°C to +85°C
• Package Type: 3-pin epoxy package

Applications:

• IR remote control systems
• Consumer electronics (TVs, VCRs, DVDs, audio equipment)
• Home automation
• IR data communication
• Infrared object detection
• Robotics

Usage:

1. Connection:
   • Connect the Vcc pin to a power supply (2.7V to 5.5V).
   • Connect the GND pin to ground.
   • Connect the OUT pin to the input of a microcontroller or other logic-level input device.
2. Operation:
   • When an IR signal at 38 kHz is received, the OUT pin goes low.
   • When no IR signal is received, the OUT pin stays high.
   • Use the output signal to control devices or process the data using a microcontroller.
3. Interfacing:
   • Interface the TSOP 1838 with a microcontroller to decode the received IR signals.
   • Implement software to process the decoded IR signals for controlling various devices.

Caution:

• Ensure the IR receiver is not exposed to direct sunlight or strong ambient light sources, as this may affect its performance.
• Handle the module with care to avoid damage from electrostatic discharge (ESD).

Datasheet:
For detailed technical specifications, refer to the TSOP 1838 Datasheet.