LM909 radio remote control receiving and decoding circuit diagram
Source: InternetPublisher:风向双子座 Keywords: Radio remote control circuit diagram decoding circuit remote control reception Updated: 2020/11/11
The remote control receiving circuit as shown in the figure requires the following performance indicators of the transmitting circuit: f radio frequency = 27MHz; f audio = 5.5kHz, 100% modulation - square wave; f' audio plus and minus 600Hz, frequency shift keying (FSK) 160Hz, Duty cycle is 100%, 60% or 30%.
T1 primary is 10T, secondary is 4T; T2 primary is 12T, secondary is 2T; 5mm frame.
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