LM567C Series

Tone decoder

Catalog

Tone decoder

Part	Current - Supply	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Circuits	Package / Case	Package / Case [y]	Package / Case [x]	Supplier Device Package	Operating Temperature [Max]	Power (Watts)	Package / Case	Package / Case
Texas Instruments LM567CM	12 mA	Surface Mount	4.75 V	9 V	1	8-SOIC	3.9 mm	0.154 in	8-SOIC	70 °C	1.1 W
Texas Instruments LM567CMX/NOPB	12 mA	Surface Mount	4.75 V	9 V	1	8-SOIC	3.9 mm	0.154 in	8-SOIC	70 °C	1.1 W
Texas Instruments LM567CMX	12 mA	Surface Mount	4.75 V	9 V	1	8-SOIC	3.9 mm	0.154 in	8-SOIC	70 °C	1.1 W
Texas Instruments LM567CN	12 mA	Through Hole	4.75 V	9 V	1	8-DIP			8-PDIP	70 °C	1.1 W	0.3 in	7.62 mm
Texas Instruments LM567CN/NOPB	12 mA	Through Hole	4.75 V	9 V	1	8-DIP			8-PDIP	70 °C	1.1 W	0.3 in	7.62 mm
Texas Instruments LM567CM/NOPB	12 mA	Surface Mount	4.75 V	9 V	1	8-SOIC	3.9 mm	0.154 in	8-SOIC	70 °C	1.1 W

Catalog

Tone decoder

Key Features

• 20 to 1 Frequency Range With an External ResistorLogic Compatible Output With 100-mA Current Sinking CapabilityBandwidth Adjustable From 0 to 14%High Rejection of Out of Band Signals and NoiseImmunity to False SignalsHighly Stable Center FrequencyCenter Frequency Adjustable from 0.01 Hz to 500 kHz20 to 1 Frequency Range With an External ResistorLogic Compatible Output With 100-mA Current Sinking CapabilityBandwidth Adjustable From 0 to 14%High Rejection of Out of Band Signals and NoiseImmunity to False SignalsHighly Stable Center FrequencyCenter Frequency Adjustable from 0.01 Hz to 500 kHz

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. 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.