SLASFC2 January   2024 TAC5112-Q1

ADVANCE INFORMATION  

  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: I2C Interface
    7. 6.7  Switching Characteristics: I2C Interface
    8. 6.8  Timing Requirements: SPI Interface
    9. 6.9  Switching Characteristics: SPI Interface
    10. 6.10 Timing Requirements: TDM, I2S or LJ Interface
    11. 6.11 Switching Characteristics: TDM, I2S or LJ Interface
    12. 6.12 Timing Requirements: PDM Digital Microphone Interface
    13. 6.13 Switching Characteristics: PDM Digial Microphone Interface
    14. 6.14 Timing Diagrams
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Serial Interfaces
        1. 7.3.1.1 Control Serial Interfaces
        2. 7.3.1.2 Audio Serial Interfaces
          1. 7.3.1.2.1 Time Division Multiplexed Audio (TDM) Interface
          2. 7.3.1.2.2 Inter IC Sound (I2S) Interface
          3. 7.3.1.2.3 Left-Justified (LJ) Interface
        3. 7.3.1.3 Using Multiple Devices With Shared Buses
      2. 7.3.2 Phase-Locked Loop (PLL) and Clock Generation
      3. 7.3.3 Input Channel Configurations
      4. 7.3.4 Output Channel Configurations
      5. 7.3.5 Reference Voltage
      6. 7.3.6 Programmable Microphone Bias
      7. 7.3.7 Signal-Chain Processing
        1. 7.3.7.1 ADC Signal-Chain
          1. 7.3.7.1.1 Programmable Channel Gain and Digital Volume Control
          2. 7.3.7.1.2 Programmable Channel Gain Calibration
          3. 7.3.7.1.3 Programmable Channel Phase Calibration
          4. 7.3.7.1.4 Programmable Digital High-Pass Filter
          5. 7.3.7.1.5 Programmable Digital Biquad Filters
          6. 7.3.7.1.6 Programmable Channel Summer and Digital Mixer
          7. 7.3.7.1.7 Configurable Digital Decimation Filters
            1. 7.3.7.1.7.1 Linear Phase Filters
              1. 7.3.7.1.7.1.1 Sampling Rate: 16kHz or 14.7kHz
              2. 7.3.7.1.7.1.2 Sampling Rate: 24kHz or 22.05kHz
              3. 7.3.7.1.7.1.3 Sampling Rate: 32kHz or 29.4kHz
              4. 7.3.7.1.7.1.4 Sampling Rate: 48kHz or 44.1kHz
              5. 7.3.7.1.7.1.5 Sampling Rate: 96kHz or 88.2kHz
              6. 7.3.7.1.7.1.6 Sampling Rate: 384kHz or 352.8kHz
        2. 7.3.7.2 DAC Signal-Chain
          1. 7.3.7.2.1 Programmable Channel Gain and Digital Volume Control
          2. 7.3.7.2.2 Programmable Channel Gain Calibration
          3. 7.3.7.2.3 Programmable Digital High-Pass Filter
          4. 7.3.7.2.4 Programmable Digital Biquad Filters
          5. 7.3.7.2.5 Programmable Digital Mixer
          6. 7.3.7.2.6 Configurable Digital Interpolation Filters
            1. 7.3.7.2.6.1 Linear Phase Filters
              1. 7.3.7.2.6.1.1 Sampling Rate: 16kHz or 14.7kHz
              2. 7.3.7.2.6.1.2 Sampling Rate: 24kHz or 22.05kHz
              3. 7.3.7.2.6.1.3 Sampling Rate: 32kHz or 29.4kHz
              4. 7.3.7.2.6.1.4 Sampling Rate: 48kHz or 44.1kHz
              5. 7.3.7.2.6.1.5 Sampling Rate: 96kHz or 88.2kHz
              6. 7.3.7.2.6.1.6 Sampling Rate: 384kHz or 352.8kHz
      8. 7.3.8 Interrupts, Status, and Digital I/O Pin Multiplexing
    4. 7.4 Device Functional Modes
  9. 8 Register Maps
    1. 8.1 TAC5212 Registers
    2. 8.2 TAC5212 Registers
    3. 8.3 TAC5212 Registers
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Application
      2. 9.2.2 Design Requirements
      3. 9.2.3 Detailed Design Procedure
  11. 10Power Supply Recommendations
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Tape and Reel Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
7.3.1.2.2 Inter IC Sound (I2S) Interface

The standard I2S protocol is defined for only two channels: left and right. The device extends the same protocol timing for multichannel operation. In I2S mode, the MSB of the left slot 0 is transmitted on the falling edge of BCLK in the second cycle after the falling edge of FSYNC. Immediately after the left slot 0 data transmission, the remaining left slot data are transmitted in order. The MSB of the right slot 0 is transmitted on the falling edge of BCLK in the second cycle after the rising edge of FSYNC. Immediately after the right slot 0 data transmission, the remaining right slot data are transmitted in order. FSYNC and each data bit is transmitted on the falling edge of BCLK. Figure 7-6 to Figure 7-9 illustrate the protocol timing for I2S operation with various configurations.

GUID-B45A6BD2-2B55-424D-8BF5-430F35C0CBD7-low.gifFigure 7-6 I2S Mode Standard Protocol Timing (PASI_TX_OFFSET = 0)
GUID-5C8C4E0B-7788-405A-927F-93A2BBEC4396-low.gifFigure 7-7 I2S Protocol Timing (PASI_TX_OFFSET = 1)
GUID-555F5E33-1567-4FC0-89C2-B0CCCC8782E1-low.gifFigure 7-8 I2S Protocol Timing (No Idle BCLK Cycles, PASI_TX_OFFSET = 0)
GUID-78B1632E-931C-4081-A0CC-E8CE43F66D0A-low.gifFigure 7-9 I2S Protocol Timing (PASI_TX_OFFSET = 0 and PASI_BCLK_POL = 1)

For proper operation of the audio bus in I2S mode, the number of bit clocks per frame must be greater than or equal to the number of active output channels (including left and right slots) times the programmed word length of the output channel data. The device FSYNC low pulse must be several BCLK cycles wide that is greater than or equal to the number of active left slots times the data word length configured. Similarly, the FSYNC high pulse must be several BCLK cycles wide that is greater than or equal to the number of active right slots times the data word length configured.