SCHS463 May   2025 CD3268A , CD3269A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
  7. 6 Parameter Measurement Information
    1. 6.1 eN-MIC Microphone Integrated Noise Measurement
    2. 6.2 Current Measurements
    3. 6.3 MICPWR Output Voltage Measurement
    4. 6.4 Tone Mode Threshold Measurements
    5. 6.5 Impedance Measurements
    6. 6.6 Tone Mode Output Measurements
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Tone Mode Start-up Timing
      2. 7.3.2 Authentication
      3. 7.3.3 Shunt Regulator
      4. 7.3.4 Power-on-reset
    4. 7.4 Device Functional Modes
      1. 7.4.1 Button Mode
      2. 7.4.2 Tone Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
      2. 9.1.2 Development Support
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.1 Design Requirements

Table 8-1 Typical Component Values
PARAMETER VALUE UNIT
CMIC MIC capacitor 10 µF
CVSHUNT VSHUNT capacitor 0.1
CTONE TONE capacitor 200 pF
RMIC MIC resistor 1.0 kΩ
RVSHUNT VSHUNT resistor 1.0
RTONE TONE resistor 20.0
R1 S1 switch resistor 6.81
R2 S2 switch resistor 2.61
R3 S3 switch resistor 3.57
R4 S4 switch resistor 6.81