making a transmitter and receiver using IR LED

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shazad basha

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Hi!
i need a circuit which is capable of transmitting and receiving FSK signals using IR LED...
Pls Help Me,,..:!:
 

If you use TSOP package receiver and its transmitter then you can transmit data only.....

---------- Post added at 13:16 ---------- Previous post was at 13:11 ----------

check this **broken link removed**
 

can u please tell me what is TSOP package receiver and its transmitter
 

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