Features • Functionally similar to LM567 • 2V to 9V supply voltage range • Low supply current drain • No increase in current with output activated • Operates to 500 kHz input frequency • High oscillator stability • Ground-referenced input • Hysteresis added to amplitude comparator • Out-of-band signals and noise rejected • 20 mA output current capability Description The LMC567 is a low power general purpose LMCMOS™ tone decoder which is functionally similar to the industry standard LM567. It 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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Datasheet

Title		Size	Date	Other Language
	LMC567 Low Power Tone Decoder	193 Kbytes	14-Oct-04	日本語

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Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMC567CM	CMOS	0	19715	0	0	2605000	2	739175862
LMC567CMX	CMOS	0	19715	0	0	2605000	2	739175862
LMC567CN	CMOS	0	19715	0	0	2605000	2	739175862

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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