ZHCSRJ6C June   2010  – January 2023 TLV320AIC3104-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 说明（续）
  6. 6 Device Comparison
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Thermal Information
    5. 8.5  Electrical Characteristics
    6. 8.6  Switching Characteristics I2S/LJF/RJF Timing in Master Mode
    7. 8.7  Switching Characteristics I2S/LJF/RJF Timing in Slave Mode
    8. 8.8  Switching Characteristics DSP Timing in Master Mode
    9. 8.9  Switching Characteristics DSP Timing in Slave Mode
    10. 8.10 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Audio Data Converters
      2. 9.3.2  Stereo Audio ADC
        1. 9.3.2.1 Stereo Audio ADC High-Pass Filter
      3. 9.3.3  Automatic Gain Control (AGC)
      4. 9.3.4  Stereo Audio DAC
      5. 9.3.5  Digital Audio Processing for Playback
      6. 9.3.6  Digital Interpolation Filter
      7. 9.3.7  Delta-Sigma Audio DAC
      8. 9.3.8  Audio DAC Digital Volume Control
      9. 9.3.9  Analog Output Common-mode Adjustment
      10. 9.3.10 Audio DAC Power Control
      11. 9.3.11 Audio Analog Inputs
      12. 9.3.12 Analog Input Bypass Path Functionality
      13. 9.3.13 ADC PGA Signal Bypass Path Functionality
      14. 9.3.14 Input Impedance and VCM Control
      15. 9.3.15 MICBIAS Generation
      16. 9.3.16 Analog Fully Differential Line Output Drivers
      17. 9.3.17 Analog High-Power Output Drivers
      18. 9.3.18 Short-Circuit Output Protection
      19. 9.3.19 Jack and Headset Detection
    4. 9.4 Device Functional Modes
      1. 9.4.1 Digital Audio Processing for Record Path
      2. 9.4.2 Increasing DAC Dynamic Range
      3. 9.4.3 Passive Analog Bypass During Power Down
      4. 9.4.4 Hardware Reset
    5. 9.5 Programming
      1. 9.5.1  Digital Control Serial Interface
      2. 9.5.2  I2C Control Interface
      3. 9.5.3  I2C Bus Debug in a Glitched System
      4. 9.5.4  Digital Audio Data Serial Interface
      5. 9.5.5  Right-Justified Mode
      6. 9.5.6  Left-Justified Mode
      7. 9.5.7  I2S Mode
      8. 9.5.8  DSP Mode
      9. 9.5.9  TDM Data Transfer
      10. 9.5.10 Audio Clock Generation
    6. 9.6 Register Maps
      1. 9.6.1 Output Stage Volume Controls
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 External Speaker Driver in Infotainment and Cluster Applications
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
        3. 10.2.1.3 Application Curves
      2. 10.2.2 External Speaker Amplifier With Separate Line Outputs
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Device Nomenclature
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 静电放电警告
  14. 14Mechanical, Packaging, and Orderable Information

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9.3.4 Stereo Audio DAC

The TLV320AIC3104-Q1 includes a stereo audio DAC supporting sampling rates from 8 kHz to 96 kHz. Each channel of the stereo audio DAC consists of a digital audio processing block, a digital interpolation filter, multibit digital delta-sigma modulator, and an analog reconstruction filter. The DAC is designed to provide enhanced performance at low sampling rates through increased oversampling and image filtering, thereby keeping quantization noise generated within the delta-sigma modulator and signal images strongly suppressed within the audio band to beyond 20 kHz. This is realized by keeping the upsampled rate constant at 128 fS(ref) and changing the oversampling ratio as the input sample rate is changed. For an fS(ref) of 48 kHz, the digital delta-sigma modulator always operates at a rate of 6.144 MHz. This ensures that quantization noise generated within the delta-sigma modulator stays low within the frequency band below 20 kHz at all sample rates. Similarly, for an fS(ref) rate of 44.1 kHz, the digital delta-sigma modulator always operates at a rate of 5.6448 MHz.

The following restrictions apply in the case when the PLL is powered down and double-rate audio mode is enabled in the DAC.

  • Allowed Q values = 4, 8, 9, 12, 16
  • Q values where equivalent fS(ref) can be achieved by turning on the PLL
  • Q = 5, 6, 7 (set P = 5, 6, or 7, K = 16, and PLL enabled)
  • Q = 10, 14 (set P = 5 or 7, K = 8, and PLL enabled)