ir transmitter and receiver

[shazad basha]

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]

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.