InfraRed Receiver
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This is a 3 pin device incorporating surface mount IC which has the following blocks:
- Photo detector
- Preamplifier
- Filter
- Demodulator
The functional block diagram of the same is given below
Two pins are for +5v supply and ground while the third pin is for data output.The Infrared Receiver is designed for demodulating the frequency of 30khz to 40khz, for example, TSOP1838 is designed for demodulating frequency of 38khz which is used in our project.
The IR receiver module receives the data sent by remote handset, amplifies, demodulates and converts it to MCU compatible voltage format and outputs it on its data output pin.
