SLASF33A January   2024  – March 2025 TAC5412-Q1

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: I2C Interface
    7. 5.7  Switching Characteristics: I2C Interface
    8. 5.8  Timing Requirements: SPI
    9. 5.9  Switching Characteristics: SPI
    10. 5.10 Timing Requirements: TDM, I2S or LJ Interface
    11. 5.11 Switching Characteristics: TDM, I2S or LJ Interface
    12. 5.12 Timing Requirements: PDM Digital Microphone Interface
    13. 5.13 Switching Characteristics: PDM Digial Microphone Interface
    14. 5.14 Timing Diagrams
    15. 5.15 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Serial Interfaces
        1. 6.3.1.1 Control Serial Interfaces
        2. 6.3.1.2 Audio Serial Interfaces
          1. 6.3.1.2.1 Time Division Multiplexed Audio (TDM) Interface
          2. 6.3.1.2.2 Inter IC Sound (I2S) Interface
          3. 6.3.1.2.3 Left-Justified (LJ) Interface
        3. 6.3.1.3 Using Multiple Devices With Shared Buses
      2. 6.3.2  Phase-Locked Loop (PLL) and Clock Generation
      3. 6.3.3  Input Channel Configuration
      4. 6.3.4  Reference Voltage
      5. 6.3.5  Microphone Bias
      6. 6.3.6  Digital PDM Microphone Record Channel
      7. 6.3.7  Signal-Chain Processing
        1. 6.3.7.1 ADC Signal-Chain
          1. 6.3.7.1.1  6 to 4 Input Select Multiplexer (6:4 MUX)
          2. 6.3.7.1.2  Programmable Channel Gain and Digital Volume Control
          3. 6.3.7.1.3  Programmable Channel Gain Calibration
          4. 6.3.7.1.4  Programmable Channel Phase Calibration
          5. 6.3.7.1.5  Programmable Digital High-Pass Filter
          6. 6.3.7.1.6  Programmable Digital Biquad Filters
          7. 6.3.7.1.7  Programmable Channel Summer and Digital Mixer
          8. 6.3.7.1.8  Configurable Digital Decimation Filters
            1. 6.3.7.1.8.1 Linear-phase filters
              1. 6.3.7.1.8.1.1 Sampling Rate: 8kHz or 7.35kHz
              2. 6.3.7.1.8.1.2 Sampling Rate: 16kHz or 14.7kHz
              3. 6.3.7.1.8.1.3 Sampling Rate: 24kHz or 22.05kHz
              4. 6.3.7.1.8.1.4 Sampling Rate: 32kHz or 29.4kHz
              5. 6.3.7.1.8.1.5 Sampling Rate: 48kHz or 44.1kHz
              6. 6.3.7.1.8.1.6 Sampling Rate: 96kHz or 88.2kHz
              7. 6.3.7.1.8.1.7 Sampling Rate: 192kHz or 176.4kHz
              8. 6.3.7.1.8.1.8 Sampling Rate: 384kHz or 352.8kHz
              9. 6.3.7.1.8.1.9 Sampling Rate: 768kHz or 705.6kHz
            2. 6.3.7.1.8.2 Low-latency Filters
              1. 6.3.7.1.8.2.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.1.8.2.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.1.8.2.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.1.8.2.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.1.8.2.5 Sampling Rate: 192kHz or 176.4kHz
            3. 6.3.7.1.8.3 Ultra-Low-Latency Filters
              1. 6.3.7.1.8.3.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.1.8.3.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.1.8.3.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.1.8.3.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.1.8.3.5 Sampling Rate: 192kHz or 176.4kHz
          9. 6.3.7.1.9  Automatic Gain Controller (AGC)
          10. 6.3.7.1.10 Voice Activity Detection (VAD)
          11. 6.3.7.1.11 Ultrasonic Activity Detection (UAD)
        2. 6.3.7.2 DAC Signal-Chain
          1. 6.3.7.2.1 Programmable Channel Gain and Digital Volume Control
          2. 6.3.7.2.2 Programmable Channel Gain Calibration
          3. 6.3.7.2.3 Programmable Digital High-Pass Filter
          4. 6.3.7.2.4 Programmable Digital Biquad Filters
          5. 6.3.7.2.5 Configurable Digital Interpolation Filters
            1. 6.3.7.2.5.1 Linear-phase filters
              1. 6.3.7.2.5.1.1 Sampling Rate: 8kHz or 7.35kHz
              2. 6.3.7.2.5.1.2 Sampling Rate: 16kHz or 14.7kHz
              3. 6.3.7.2.5.1.3 Sampling Rate: 24kHz or 22.05kHz
              4. 6.3.7.2.5.1.4 Sampling Rate: 32kHz or 29.4kHz
              5. 6.3.7.2.5.1.5 Sampling Rate: 48kHz or 44.1kHz
              6. 6.3.7.2.5.1.6 Sampling Rate: 96kHz or 88.2kHz
              7. 6.3.7.2.5.1.7 Sampling Rate: 192kHz or 176.4kHz
              8. 6.3.7.2.5.1.8 Sampling Rate: 384kHz or 352.8kHz
              9. 6.3.7.2.5.1.9 Sampling Rate 768kHz or 705.6kHz
            2. 6.3.7.2.5.2 Low-latency Filters
              1. 6.3.7.2.5.2.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.2.5.2.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.2.5.2.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.2.5.2.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.2.5.2.5 Sampling Rate: 192kHz or 176.4kHz
            3. 6.3.7.2.5.3 Ultra-Low-Latency Filters
              1. 6.3.7.2.5.3.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.2.5.3.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.2.5.3.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.2.5.3.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.2.5.3.5 Sampling Rate 192kHz or 176.4kHz
          6. 6.3.7.2.6 Programmable Digital Mixer
      8. 6.3.8  Interrupts, Status, and Digital I/O Pin Multiplexing
      9. 6.3.9  Input DC Fault Diagnostics
      10. 6.3.10 Power Tune Mode
    4. 6.4 Device Functional Modes
      1. 6.4.1 Sleep Mode or Software Shutdown
      2. 6.4.2 Active Mode
      3. 6.4.3 Software Reset
    5. 6.5 Programming
      1. 6.5.1 Control Serial Interfaces
        1. 6.5.1.1 I2C Control Interface
          1. 6.5.1.1.1 General I2C Operation
          2. 6.5.1.1.2 I2C Single-Byte and Multiple-Byte Transfers
            1. 6.5.1.1.2.1 I2C Single-Byte Write
            2. 6.5.1.1.2.2 I2C Multiple-Byte Write
            3. 6.5.1.1.2.3 I2C Single-Byte Read
            4. 6.5.1.1.2.4 I2C Multiple-Byte Read
        2. 6.5.1.2 SPI Control Interface
  8. 7 Register Maps
    1. 7.1 Device Configuration Registers
      1. 7.1.1 TAC5412-Q1_B0_P0 Registers
      2. 7.1.2 TAC5412-Q1_B0_P1 Registers
      3. 7.1.3 TAC5412-Q1_B0_P3 Registers
    2. 7.2 Programmable Coefficient Registers
      1. 7.2.1  Programmable Coefficient Registers: Page 8
      2. 7.2.2  Programmable Coefficient Registers: Page 9
      3. 7.2.3  Programmable Coefficient Registers: Page 10
      4. 7.2.4  Programmable Coefficient Registers: Page 11
      5. 7.2.5  Programmable Coefficient Registers: Page 15
      6. 7.2.6  Programmable Coefficient Registers: Page 16
      7. 7.2.7  Programmable Coefficient Registers: Page 17
      8. 7.2.8  Programmable Coefficient Registers: Page 18
      9. 7.2.9  Programmable Coefficient Registers: Page 19
      10. 7.2.10 Programmable Coefficient Registers: Page 25
      11. 7.2.11 Programmable Coefficient Registers: Page 26
      12. 7.2.12 Programmable Coefficient Registers: Page 27
      13. 7.2.13 Programmable Coefficient Registers: Page 28
  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 Typical Characteristics
      5. 8.2.5 Example Device Register Configuration Script for EVM Setup
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 IOVDD_IO_MODE for 1.8V and 1.2V Operation
    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
6.3.7.1.9 Automatic Gain Controller (AGC)

The device includes an automatic gain controller (AGC) for ADC recording. As shown in Figure 6-62, the AGC can be used to maintain a nominally constant output level when recording speech. Instead of manually setting the channel gain in AGC mode, the circuitry automatically adjusts the channel gain when the input signal becomes overly loud or very weak, such as when a person speaking into a microphone moves closer to or farther from the microphone. The AGC algorithm has several programmable parameters, including target level, maximum gain allowed, attack and release (or decay) time constants, and noise thresholds that allow the algorithm to be fine-tuned for any particular application. These are part of the programmable coefficients of the device for flexibility and can be configured using the registers in B0_P27 and B0_P28.

TAC5412-Q1 AGC Characteristics Figure 6-62 AGC Characteristics

The target level represents the nominal approximate output level at which the AGC attempts to hold the ADC output signal level. The TAC5412-Q1 allows programming of different target levels. The target level is recommended to be set with enough margin to prevent clipping when loud sounds occur. For further details on the AGC various configurable parameter and application use, see the Using the Automatic Gain Controller (AGC) in TAx5x1x Family application report. TI recommends using the PPC3 GUI for configuring the programmable coefficients settings; for more details see the TAx5x1x-Q1EVM-PDK Evaluation module users guide and the PurePath™ console graphical development suite.