ABS Shell Infrared TV Remote Control 41 keys For Samsung / Sony / SKYWORTH Television

Infrared TV Remote Control With 41 Keys ABS Shell For Samsung/ Sony/ SKYWORTH Television

There are basically two kinds of packaging for the finished infrared receiver: one uses iron shield;One is plastic packaging.There are three pins, namely, positive power supply (VDD), negative power supply (GND) and data output (VO or OUT).The arrangement of the pins of the infrared receiving head varies with different models, please refer to the manufacturer's instructions.The advantage of the finished infrared receiver is that it does not need complex debugging and shell shielding, so it is very convenient to use like a triode.But pay attention to the carrier frequency of the infrared receiver when using

The carrier frequency commonly used for infrared remote control is 38kHz, which is determined by the 455kHz ceramic vibration used at the transmitter.

At the transmitting end, integer frequency division of crystal oscillator is required. The frequency division coefficient is generally 12, so 455kHz÷12≈ 37.9khz ≈38kHz.There are also some remote control systems with 36kHz, 40kHz, 56kHz, etc., which are generally determined by the oscillation frequency of the transmitter crystal oscillator.

The characteristics of infrared remote control is not to affect the surrounding environment, not to interfere with other electrical equipment.Because it is impenetrable to walls, household appliances in different rooms can be used with a universal remote control without interfering with each other.Circuit debugging is simple, as long as the given circuit connection is correct, generally do not need any debugging can be put into work;Easy to encode and decode, can be multi - channel remote control