Composed of FDD400-1 and JDD400-1 digital wireless bleep system circuit diagram

Published:2011/4/15 1:08:00 Author:Rebekka | Keyword: digital wireless bleep system | From:SeekIC

Coded transmitting circuit(MK5087 is the DTMF encoder): Receiver decoder circuit (YN9101 is the DTMF decoder. HFC9301 is warning sound generating circuit. LM386 is the audio amplifier circuit).



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