常用运放IC lm567.pdf .pdf LM567/LM567C Tone Decoder
May 1999
LM567/LM567C
Tone Decoder
General Description n High rejection of out of band signals and noise
n Immunity to false signals
The LM567 and LM567C are general purpose tone decoders
n Highly stable center frequency
designed to provide a saturated transistor switch to ground
when an input signal is present within the passba……
