The RPM971-H14E3A3 is a Remote Control Receiver Module manufactured by Rohm Semiconductor. This module is designed to receive infrared (IR) signals from remote controls, decode them, and output the corresponding data. It is commonly used in a wide variety of consumer electronics and other applications where remote control functionality is required.

Applications

• Television (TV) sets
• DVD and Blu-ray players
• Audio systems and receivers
• Air conditioners
• Set-top boxes
• Remote control toys

Features

• Miniature Package: Compact size for easy integration into various devices.
• High Sensitivity: Excellent reception performance, even with weak IR signals.
• Internal Filter: Built-in filter to suppress noise and interference from ambient light.
• Standard Carrier Frequency: Supports common IR carrier frequencies for compatibility with various remote controls.
• Low Current Consumption: Energy-efficient operation for battery-powered devices.

Benefits

• Reliable Remote Control Functionality: Provides robust and dependable IR signal reception.
• Easy Integration: Simple to incorporate into existing designs due to its compact size and standard interface.
• Improved Noise Immunity: Minimizes false triggering from ambient light and other sources of interference.
• Extended Battery Life: Low power consumption extends the operating time of battery-powered devices.
• Cost-Effective Solution: Offers a competitive price point for remote control receiver functionality.

Technical Specifications

The RPM971-H14E3A3 operates on a supply voltage typically around 5V. It features a specific carrier frequency, commonly 38kHz or similar, which is used to modulate the IR signal transmitted by the remote control. The module outputs a digital signal that represents the decoded remote control commands. It is important to refer to the datasheet for detailed electrical characteristics, timing diagrams, and application notes.

Furthermore, the module incorporates an automatic gain control (AGC) circuit to maintain consistent signal reception even with varying IR signal strengths. This ensures reliable operation over a wide range of distances and environmental conditions.