Frequency electronic locks LM567 schematic


Posted on Mar 28, 2007

As shown in the frequency of electronic locks by the PLL audio decoder LM567 composition, the electronic lock circuit uses the LM567 audio decoding characteristic, that is, whe


Frequency electronic locks LM567 schematic
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n it is consistent with the input signal frequency and the oscillation frequency of the internal VCO, it will output low. Circuit by an audio frequency oscillator, the output frequency decoder and driver circuit.




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