The TSOP4840RF1 is a miniaturized receiver module for infrared remote control systems. It integrates a photodiode, preamplifier and IR filter in a single package. Designed to receive infrared signals modulated at a carrier frequency of 40 kHz, the TSOP4840RF1 is optimized for use in a wide range of remote control applications.

Applications

• Remote control systems for consumer electronics (TVs, DVD players, audio equipment)
• Wireless control of lighting systems
• Industrial automation systems
• Proximity sensors
• Remote control toys

Features

• High immunity to ambient light
• Internal filter for PCM frequency
• Low power consumption
• Photo detector and preamplifier in one package
• TTL and CMOS compatibility
• Output active low
• Carrier frequency: 40 kHz
• Supply voltage: 2.5 V to 5.5 V
• Lead (Pb)-free component in accordance with RoHS 2002/95/EC

Benefits

• Reliable remote control operation, even in environments with high levels of ambient light.
• Extended battery life due to the low power consumption.
• Easy integration into existing designs due to its compact size and standard pinout.
• Reduced susceptibility to noise and interference.
• Compliance with environmental regulations.

Additional Details

The TSOP4840RF1 operates at a carrier frequency of 40 kHz. It is designed to receive infrared signals modulated with a specific pulse code modulation (PCM) scheme. The module’s internal filter is tuned to this frequency, effectively blocking out ambient light and other sources of infrared radiation that could interfere with the desired signal. The output of the TSOP4840RF1 is an active-low signal, meaning that it is normally high and goes low when an infrared signal is detected. The module is housed in a compact epoxy package that provides protection against physical damage and environmental factors.