The RPM870-H7E2 is an infrared remote control receiver module manufactured by Rohm Semiconductor. It's designed to receive infrared signals from remote controls, demodulate them, and output a clean digital signal suitable for microcontroller interfacing. These modules are commonly found in consumer electronics, home automation systems, and various other applications requiring remote control capabilities.

Applications

• Televisions and set-top boxes
• DVD and Blu-ray players
• Audio-visual receivers and amplifiers
• Air conditioners and other home appliances
• Lighting control systems
• Industrial remote control applications

Features

• Compact package size
• High sensitivity and long reception range
• Excellent immunity to ambient light and noise
• Built-in AGC (Automatic Gain Control)
• Carrier frequency: 37.9kHz
• Supply Voltage: 4.5V to 5.5V

Benefits

• Provides reliable infrared remote control reception
• Simplifies circuit design by integrating all necessary components
• Reduces the size and cost of remote control receiver circuits
• Ensures stable performance in various lighting conditions
• Low power consumption

Additional Details

The RPM870-H7E2 consists of a PIN photodiode, a preamplifier, and a demodulation circuit integrated into a single epoxy molded package. The Automatic Gain Control (AGC) function compensates for variations in the received signal strength, ensuring stable operation even when the remote control is far away or the signal is weak. The demodulated output signal is a digital signal that can be directly connected to a microcontroller or other digital circuit. The module is sensitive to infrared light modulated at a carrier frequency of 37.9 kHz. It is designed to operate over a wide temperature range. The output is active low, meaning it pulls low when an IR signal is detected. The peak wavelength is 940nm. The typical supply current is 0.7mA.