Pll receiver


Posted on Sep 10, 2012    12297

This simple AM circuit uses a 561B. There's no inductance/capacitance tuning circuit. The 365 pF capacitor connected between pins 2 and 3 does all the tuning. The circuit needs a good outside antenna and a solid ground. And if you want to further improve operation, stick a broadband amplifier in front of the receiver.

Pll receiver  - schematic

Just make sure the input voltage does not climb over 0.5 volt rms.

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