Product details

Operating temperature range (°C) -25 to 100 Rating Catalog
Operating temperature range (°C) -25 to 100 Rating Catalog
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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
  • 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

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.

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.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet LMC567 Low-Power Tone Decoder datasheet (Rev. C) PDF | HTML 31 Dec 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
SOIC (D) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos