Datasheet

LM567, LM567C
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SNOSBQ4D MAY 1999REVISED MARCH 2013
LM567/LM567C Tone Decoder
Check for Samples: LM567, LM567C
1
FEATURES
APPLICATIONS
2
20 to 1 Frequency Range with an External
Touch Tone Decoding
Resistor
Precision Oscillator
Logic Compatible Output with 100 mA Current
Frequency Monitoring and Control
Sinking Capability
Wide Band FSK Demodulation
Bandwidth Adjustable from 0 to 14%
Ultrasonic Controls
High Rejection of Out of Band Signals and
Carrier Current Remote Controls
Noise
Communications Paging Decoders
Immunity to False Signals
Highly Stable Center Frequency
DESCRIPTION
Center Frequency Adjustable from 0.01 Hz to
The LM567 and LM567C are general purpose tone
500 kHz
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.
CONNECTION DIAGRAM
Figure 1. Metal Can Package Figure 2. PDIP and SOIC Packages
Top View Top View
See Package Number LMC0008C See Package Number D0008A
OBSOLETE See Package Number P0008E
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PRODUCTION DATA information is current as of publication date.
Copyright © 1999–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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