See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

D | 8

Temp:

S (-25 to 100)

ECO Plan:

Green (RoHS & no Sb/Br)

LMC567CMX/NOPB


Low Power Tone Decoder

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750 - 999 $ 0.87
1000 - 9999 $ 0.74

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Texas Instruments LMC567CMX/NOPB

The LMC567 device is a low-power, general-purpose LMCMOS tone decoder which is functionally similar to the industry standard LM567. The device consists of a twice frequency voltage-controlled oscillator (VCO) and quadrature dividers which establish the reference signals for phase and amplitude detectors.

The phase detector and VCO form a phase-locked loop (PLL) which locks to an input signal frequency which is within the control range of the VCO. When the PLL is locked and the input signal amplitude exceeds an internally pre-set threshold, a switch to ground is activated on the output pin. External components set up the oscillator to run at twice the input frequency and determine the phase and amplitude filter time constants.

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