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LM567C

Part Number	LM567C
Manufacturer	National Semiconductor
Description	Tone Decoder
Published	Mar 22, 2005
Detailed Description	LM567/LM567C Tone Decoder May 1999 LM567/LM567C Tone Decoder General Description The LM567 and LM567C are general purp...
Datasheet	LM567C PDF File

Overview

LM567/LM567C Tone Decoder May 1999 LM567/LM567C Tone Decoder General Description The LM567 and LM567C are general purpose tone decoders designed to provide a saturated transistor switch to ground when an input signal is present within the passband.
The circuit consists of an I and Q detector driven by a voltage controlled oscillator which determines the center frequency of the decoder.
External components are used to independently set center frequency, bandwidth and output delay.
n n n n High rejection of out of band signals and noise Immunity to false signals Highly stable center frequency Center frequency adjustable from 0.
01 Hz to 500 kHz Applications n n n n n n n Touch tone decoding ...

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