The 567 FM demodulator circuit

In the figure is the 567 FM demodulator circuit. In the figure, the FM signal is input from 3-pin and the demodulated signal is output from 5-pin. The central frequency of the FM signal that the circuit can demodulate is: fo=1.1/RC. In the circuit, C1 is the filtering capacitor, C2 is the wide band adjusting capacitor, when C2 is going down, the band width o..

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