LM909 radio telecontrol receiving decoding circuit diagram

Published:2011/10/16 22:20:00 Author:Ecco | Keyword: radio telecontrol, receiving decoding | From:SeekIC

The telecontrol receiving decoding circuit's performance index shown as the chart are as follow: f radio frequency =27MHz, f audio frequency =5.5KHz, 100% modulation - square-wave; f radio frequency=±600Hz, and the frequency shift keying (FSK) is 160Hz, and the dutyfactor is 100%, 60% or 30%, T1's primary is 10T, secondary is 4T; T2's primary is 12T, secondary is 2T; the frame is 5mm.



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