LM567CMX/NOPB Datasheet PDF - TI

●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.

●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 Center Frequency

●• Center Frequency Adjustable from 0.01 Hz to 500 kHz

●APPLICATIONS

●• Touch Tone Decoding

●• Precision Oscillator

●• Frequency Monitoring and Control

●• Wide Band FSK Demodulation

●• Ultrasonic Controls

●• Carrier Current Remote Controls

●• Communications Paging Decoders