TSOP1738 - Infrared Sensor

TSOP1738 Infrared Sensor Module

The TSOP1738 is an integrated infrared remote control receiver module. It incorporates a PIN diode and a preamplifier in a single package. The module detects IR signals at a 38 kHz center frequency, providing an active low output. Internal components include a bandpass filter, an integrator stage, and automatic gain control. These features mitigate disturbances from ambient light sources such as sunlight and fluorescent lamps. The TSOP1738 exhibits immunity to electrical field interference. It provides IR signal reception for electronic projects.

Specifications:

• Operating Frequency: 38 kHz
• Output Logic: Active Low
• Supply Voltage: 2.5V - 5.5V
• Logic Compatibility: TTL and CMOS
• Max Data Rate: 2400 bps
• Min Burst Length: ≥10 cycles/burst
• Integrated Features: Photodetector, Preamplifier, Bandpass Filter, AGC
• Ambient Light Immunity: High
• Electrical Field Immunity: Improved

Key features and benefits:

• Photodetector and preamplifier integrated in a single package.
• Internal bandpass filter optimized for 38 kHz PCM frequency.
• High immunity against electrical field disturbances via enhanced shielding.
• Directly compatible with TTL and CMOS logic circuits.
• Active low output signal.
• Low power consumption for battery-powered applications.
• High immunity against ambient light interference.
• Supports continuous data transmission up to 2400 bps.

Applications:

• Infrared remote control systems (TVs, VCRs, audio equipment)
• Robotics and automation projects
• Proximity sensing and object detection
• Home automation systems
• Security and access control systems
• IR data communication links

Frequently Asked Questions:

Q: What is the operating voltage range for the TSOP1738?
A: The TSOP1738 operates within a supply voltage range of 2.5V to 5.5V.

Q: Is the TSOP1738 compatible with both 3.3V and 5V microcontrollers?
A: Yes, the TSOP1738 is compatible with both TTL and CMOS logic circuits, supporting 3.3V and 5V microcontrollers within its 2.5V-5.5V supply range.

Q: What is the output signal type of the TSOP1738?
A: The TSOP1738 provides an active low output signal.

Q: Can the TSOP1738 operate in environments with direct sunlight?
A: The TSOP1738 incorporates features like a bandpass filter and AGC to suppress disturbances from ambient light sources, including sunlight.

Q: What is the maximum data rate supported by this sensor?
A: The TSOP1738 supports a maximum continuous data transmission rate of 2400 bps.

Package Includes:

*Image shown is a representation only.

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