The RPM7140-H4 is an infrared remote control receiver module manufactured by Rohm Semiconductor. This module is designed to detect and demodulate infrared signals transmitted by remote controls, commonly used in various electronic devices. It integrates a photodiode, amplifier, and demodulation circuitry into a single compact package.

Applications:

• Televisions
• DVD Players
• Audio Systems
• Air Conditioners
• Set-Top Boxes

Features:

• Infrared Remote Control Receiver: Receives and decodes infrared signals.
• Compact Package: Small size for easy integration into electronic devices.
• High Sensitivity: Detects weak infrared signals.
• Built-in AGC (Automatic Gain Control): Adjusts sensitivity based on signal strength.
• Carrier Frequency: Optimized for standard remote control carrier frequencies (e.g., 38 kHz).

Benefits:

• Easy Integration: Simple to incorporate into various electronic device designs.
• Reliable Performance: Consistent and accurate reception of remote control signals.
• Noise Immunity: Rejects ambient light and electrical noise for improved signal clarity.
• Cost-Effective: Provides a low-cost solution for remote control functionality.
• Stable Operation: Operates reliably under varying environmental conditions.

Additional Details:

The RPM7140-H4 typically operates on a 5V power supply and outputs a digital signal that corresponds to the decoded infrared signal. The module's sensitivity is a crucial parameter, determining the maximum distance and angle at which it can reliably receive remote control signals. The AGC feature ensures that the receiver can handle both strong and weak signals without distortion. The specific carrier frequency is usually around 38 kHz, which is a standard frequency used in many remote control systems. Rohm Semiconductor provides detailed datasheets with electrical characteristics, timing diagrams, and application notes for the RPM7140-H4.