LM567x Tone Decoder
SNOSBQ4E – May1999 – revisedDecember 2014
- Touch Tone Decoding
- Precision Oscillator
- Frequency Monitoring and Control
- Wide Band FSK Demodulation
- Ultrasonic Controls
- Carrier Current Remote Controls
- Communications Paging Decoders
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.
|PART NUMBER||PACKAGE||BODY SIZE (NOM)|
|LM567C||SOIC (8)||4.90 mm × 3.91 mm|
|PDIP (8)||9.81 mm × 6.35 mm|
- For all available packages, see the orderable addendum at the end of the datasheet.
4 Simplified Diagram
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