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ir transmitter and receiver

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shazad basha

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hi!
i have a circuit of FSK MODULATOR using XR2206 and FSK DEMODULATOR USING NE565
i want transmit and receive it at other end of demodulator using IR LED
can any one pls help me....::roll:
 

d.javeedakthar

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AT the output of the Fsk modulator include a IR LED. This will transmit your modulated output, take care of adding any resistors if necessary.
On the otherside use a 2 lead IR detector along with the op-amp as a comparator and use resistor in series with the IR detector as per the sensitivity requirement.
 

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