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LMC567 Datasheet Low-Power Tone Decoder

Manufacturer: Texas Instruments

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General Description

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.

Overview

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMC567 SNOSBY1C – JUNE 1999 – REVISED DECEMBER 2015 LMC567 Low-Power Tone Decoder.

Key Features

  • 1 Functionally Similar to LM567.
  • 2-V to 9-V 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 2.

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