SLASF27A December   2023  – November 2024 TAC5242

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements: TDM, I2S or LJ Interface
    7. 6.7 Switching Characteristics: TDM, I2S or LJ Interface
    8. 6.8 Timing Diagrams
    9. 6.9 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Hardware Control
      2. 7.3.2 Audio Serial Interfaces
        1. 7.3.2.1 Time Division Multiplexed Audio (TDM) Interface
        2. 7.3.2.2 Inter IC Sound (I2S) Interface
        3. 7.3.2.3 Left-Justified (LJ) Interface
      3. 7.3.3 Phase-Locked Loop (PLL) and Clock Generation
      4. 7.3.4 Analog Input and Output Configurations
      5. 7.3.5 Reference Voltage
      6. 7.3.6 Integrated Microphone Bias
      7. 7.3.7 ADC Signal-Chain
        1. 7.3.7.1 Digital High-Pass Filter
        2. 7.3.7.2 Configurable Digital Decimation Filters
          1. 7.3.7.2.1 Linear-phase filters
            1. 7.3.7.2.1.1 Sampling Rate: 8kHz or 7.35kHz
            2. 7.3.7.2.1.2 Sampling Rate: 16kHz or 14.7kHz
            3. 7.3.7.2.1.3 Sampling Rate: 24kHz or 22.05kHz
            4. 7.3.7.2.1.4 Sampling Rate: 32kHz or 29.4kHz
            5. 7.3.7.2.1.5 Sampling Rate: 48kHz or 44.1kHz
            6. 7.3.7.2.1.6 Sampling Rate: 96kHz or 88.2kHz
            7. 7.3.7.2.1.7 Sampling Rate: 192kHz or 176.4kHz
          2. 7.3.7.2.2 Low-latency Filters
            1. 7.3.7.2.2.1 Sampling Rate: 24kHz or 22.05kHz
            2. 7.3.7.2.2.2 Sampling Rate: 32kHz or 29.4kHz
            3. 7.3.7.2.2.3 Sampling Rate: 48kHz or 44.1kHz
            4. 7.3.7.2.2.4 Sampling Rate: 96kHz or 88.2kHz
            5. 7.3.7.2.2.5 Sampling Rate: 192kHz or 176.4kHz
      8. 7.3.8 DAC Signal-Chain
        1. 7.3.8.1 Digital Interpolation Filters
          1. 7.3.8.1.1 Linear-phase filters
            1. 7.3.8.1.1.1 Sampling Rate: 8kHz or 7.35kHz
            2. 7.3.8.1.1.2 Sampling Rate: 16kHz or 14.7kHz
            3. 7.3.8.1.1.3 Sampling Rate: 24kHz or 22.05kHz
            4. 7.3.8.1.1.4 Sampling Rate: 32kHz or 29.4kHz
            5. 7.3.8.1.1.5 Sampling Rate: 48kHz or 44.1kHz
            6. 7.3.8.1.1.6 Sampling Rate: 96kHz or 88.2kHz
            7. 7.3.8.1.1.7 Sampling Rate: 192kHz or 176.4kHz
          2. 7.3.8.1.2 Low-latency Filters
            1. 7.3.8.1.2.1 Sampling Rate: 24kHz or 22.05kHz
            2. 7.3.8.1.2.2 Sampling Rate: 32kHz or 29.4kHz
            3. 7.3.8.1.2.3 Sampling Rate: 48kHz or 44.1kHz
            4. 7.3.8.1.2.4 Sampling Rate: 96kHz or 88.2kHz
            5. 7.3.8.1.2.5 Sampling Rate: 192kHz or 176.4kHz
    4. 7.4 Device Functional Modes
      1. 7.4.1 Active Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Application
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
      4. 8.2.4 Application Performance Plots
    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 Documentation Support
      1. 9.1.1 Related Documentation
    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

7.3.6 Integrated Microphone Bias

The device integrates a built-in, low-noise microphone bias pin that outputs a high PSRR, low noise output voltage equal to VREF that can be used in the system for biasing electret-condenser microphones or providing the supply to the MEMS analog or digital microphones. The integrated bias amplifier supports up to 5mA of load current that can be used for multiple microphones. When using this MICBIAS pin for biasing or supplying various microphones, avoid any common impedance on the board layout for the MICBIAS connection to minimize coupling across microphones.