LM567C

Tone Decoder

Texas Instruments

LM567C Features

* 20 to 1 Frequency Range With an External Resistor

* Logic Compatible Output With 100-mA Current Sinking Capability

* Bandwidth Adjustable From 0 to 14%

* High Rejection of Out of Band Signals and Noise

* Immunity to False Signals

* Highly Stable Cent

LM567C 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 .

LM567C Datasheet (2.66 MB)