I've made a PLl as a demodulator circuit using MM74HC4046. But there is something wrong with it.
I attach this email with the schematic and the output signal.
R1==100k,R2600k,R33=330k, C1=1.5nF,C2=0.1uF.
the VCO center frequency is 26.7kHz.
The main frequency is 10kHz.
The modulation rate is 1kHz.
I attach this email with the schematic and the output signal.
R1==100k,R2600k,R33=330k, C1=1.5nF,C2=0.1uF.
the VCO center frequency is 26.7kHz.
The main frequency is 10kHz.
The modulation rate is 1kHz.