SNOSBQ4E May 1999  – December 2014 LM567C

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Simplified Diagram
  5. Revision History
  6. Device Comparison Table
  7. Pin Configuration and Functions
  8. Specifications
    1. 8.1Absolute Maximum Ratings
    2. 8.2Recommended Operating Conditions
    3. 8.3Thermal Information
    4. 8.4Electrical Characteristics
    5. 8.5Typical Characteristics
  9. Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1Overview
    2. 10.2Functional Block Diagram
    3. 10.3Feature Description
      1. 10.3.1Center Frequency
      2. 10.3.2Output Filter
      3. 10.3.3Loop Filter
      4. 10.3.4Logic Output
      5. 10.3.5Die Characteristics
    4. 10.4Device Functional Modes
      1. 10.4.1Operation With Vi < 200m - VRMS
      2. 10.4.2Operation With Vi > 200m - VRMS
  11. 11Application and Implementation
    1. 11.1Application Information
    2. 11.2Typical Applications
      1. 11.2.1Touch-Tone Decoder
        1. 11.2.1.1Design Requirements
        2. 11.2.1.2Detailed Design Procedure
          1. 11.2.1.2.1Timing Components
          2. 11.2.1.2.2Bandwidth
          3. 11.2.1.2.3Output Filter
        3. 11.2.1.3Application Curve
      2. 11.2.2Oscillator with Quadrature Output
        1. 11.2.2.1Design Requirements
        2. 11.2.2.2Detailed Design Procedure
        3. 11.2.2.3Application Curve
      3. 11.2.3Oscillator with Double Frequency Output
        1. 11.2.3.1Design Requirements
        2. 11.2.3.2Detailed Design Procedure
        3. 11.2.3.3Application Curve
      4. 11.2.4Precision Oscillator Drive 100-mA Loads
        1. 11.2.4.1Design Requirements
        2. 11.2.4.2Detailed Design Procedure
        3. 11.2.4.3Application Curve
      5. 11.2.5AC Test Circuit
        1. 11.2.5.1Design Requirements
        2. 11.2.5.2Detailed Design Procedure
        3. 11.2.5.3Application Curve
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1Layout Guidelines
    2. 13.2Layout Example
  14. 14Device and Documentation Support
    1. 14.1Related Links
    2. 14.2Trademarks
    3. 14.3Electrostatic Discharge Caution
    4. 14.4Glossary
  15. 15Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Orderable Information

1 Features

  • 20 to 1 Frequency Range With an External Resistor
  • Logic Compatible Output With 100-mA Current Sinking Capability
  • Bandwidth Adjustable From 0 to 14%
  • High Rejection of Out of Band Signals and Noise
  • Immunity to False Signals
  • Highly Stable Center Frequency
  • Center Frequency Adjustable from 0.01 Hz to
    500 kHz

2 Applications

  • Touch Tone Decoding
  • Precision Oscillator
  • Frequency Monitoring and Control
  • Wide Band FSK Demodulation
  • Ultrasonic Controls
  • Carrier Current Remote Controls
  • Communications Paging Decoders

3 Description

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.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
LM567CSOIC (8)4.90 mm × 3.91 mm
PDIP (8)9.81 mm × 6.35 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

4 Simplified Diagram

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