JAJSNO1A December   2023  – January 2025 TAC5112

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  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 Digital Microphone Interface
    14. 6.14 Timing Diagrams
    15. 6.15 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  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  Digital PDM Microphone Record Channel
      8. 7.3.8  Incremental ADC (IADC) Mode
      9. 7.3.9  Signal-Chain Processing
        1. 7.3.9.1 ADC Signal-Chain
          1. 7.3.9.1.1  6 to 4 Input Select Multiplexer (6:4 MUX)
          2. 7.3.9.1.2  Programmable Channel Gain and Digital Volume Control
          3. 7.3.9.1.3  Programmable Channel Gain Calibration
          4. 7.3.9.1.4  Programmable Channel Phase Calibration
          5. 7.3.9.1.5  Programmable Digital High-Pass Filter
          6. 7.3.9.1.6  Programmable Digital Biquad Filters
          7. 7.3.9.1.7  Programmable Channel Summer and Digital Mixer
          8. 7.3.9.1.8  Configurable Digital Decimation Filters
            1. 7.3.9.1.8.1 Linear-phase filters
              1. 7.3.9.1.8.1.1 Sampling Rate: 8kHz or 7.35kHz
              2. 7.3.9.1.8.1.2 Sampling Rate: 16kHz or 14.7kHz
              3. 7.3.9.1.8.1.3 Sampling Rate: 24kHz or 22.05kHz
              4. 7.3.9.1.8.1.4 Sampling Rate: 32kHz or 29.4kHz
              5. 7.3.9.1.8.1.5 Sampling Rate: 48kHz or 44.1kHz
              6. 7.3.9.1.8.1.6 Sampling Rate: 96kHz or 88.2kHz
              7. 7.3.9.1.8.1.7 Sampling Rate: 192kHz or 176.4kHz
            2. 7.3.9.1.8.2 Low-latency Filters
              1. 7.3.9.1.8.2.1 Sampling Rate: 24kHz or 22.05kHz
              2. 7.3.9.1.8.2.2 Sampling Rate: 32kHz or 29.4kHz
              3. 7.3.9.1.8.2.3 Sampling Rate: 48kHz or 44.1kHz
              4. 7.3.9.1.8.2.4 Sampling Rate: 96kHz or 88.2kHz
              5. 7.3.9.1.8.2.5 Sampling Rate: 192kHz or 176.4kHz
            3. 7.3.9.1.8.3 Ultra Low-latency Filters
              1. 7.3.9.1.8.3.1 Sampling Rate: 24kHz or 22.05kHz
              2. 7.3.9.1.8.3.2 Sampling Rate: 32kHz or 29.4kHz
              3. 7.3.9.1.8.3.3 Sampling Rate: 48kHz or 44.1kHz
              4. 7.3.9.1.8.3.4 Sampling Rate: 96kHz or 88.2kHz
              5. 7.3.9.1.8.3.5 Sampling Rate: 192kHz or 176.4kHz
          9. 7.3.9.1.9  Automatic Gain Controller (AGC)
          10. 7.3.9.1.10 Voice Activity Detection (VAD)
          11. 7.3.9.1.11 Ultrasonic Activity Detection (UAD)
        2. 7.3.9.2 DAC Signal-Chain
          1. 7.3.9.2.1 Programmable Channel Gain and Digital Volume Control
          2. 7.3.9.2.2 Programmable Channel Gain Calibration
          3. 7.3.9.2.3 Programmable Digital High-Pass Filter
          4. 7.3.9.2.4 Programmable Digital Biquad Filters
          5. 7.3.9.2.5 Programmable Digital Mixer
          6. 7.3.9.2.6 Configurable Digital Interpolation Filters
            1. 7.3.9.2.6.1 Linear-phase filters
              1. 7.3.9.2.6.1.1 Sampling Rate: 8kHz or 7.35kHz
              2. 7.3.9.2.6.1.2 Sampling Rate: 16kHz or 14.7kHz
              3. 7.3.9.2.6.1.3 Sampling Rate: 24kHz or 22.05kHz
              4. 7.3.9.2.6.1.4 Sampling Rate: 32kHz or 29.4kHz
              5. 7.3.9.2.6.1.5 Sampling Rate: 48kHz or 44.1kHz
              6. 7.3.9.2.6.1.6 Sampling Rate: 96kHz or 88.2kHz
              7. 7.3.9.2.6.1.7 Sampling Rate: 192kHz or 176.4kHz
              8. 7.3.9.2.6.1.8 Sampling Rate: 384kHz or 352.8kHz
              9. 7.3.9.2.6.1.9 Sampling Rate 768kHz or 705.6kHz
            2. 7.3.9.2.6.2 Low-latency Filters
              1. 7.3.9.2.6.2.1 Sampling Rate: 24kHz or 22.05kHz
              2. 7.3.9.2.6.2.2 Sampling Rate: 32kHz or 29.4kHz
              3. 7.3.9.2.6.2.3 Sampling Rate: 48kHz or 44.1kHz
              4. 7.3.9.2.6.2.4 Sampling Rate: 96kHz or 88.2kHz
              5. 7.3.9.2.6.2.5 Sampling Rate: 192kHz or 176.4kHz
            3. 7.3.9.2.6.3 Ultra-Low-Latency Filters
              1. 7.3.9.2.6.3.1 Sampling Rate: 24 kHz or 22.05 kHz
              2. 7.3.9.2.6.3.2 Sampling Rate: 32 kHz or 29.4 kHz
              3. 7.3.9.2.6.3.3 Sampling Rate: 48 kHz or 44.1 kHz
              4. 7.3.9.2.6.3.4 Sampling Rate: 96 kHz or 88.2 kHz
              5. 7.3.9.2.6.3.5 Sampling Rate 192 kHz or 176.4 kHz
      10. 7.3.10 Interrupts, Status, and Digital I/O Pin Multiplexing
      11. 7.3.11 Power Tune Mode
    4. 7.4 Device Functional Modes
      1. 7.4.1 Sleep Mode or Software Shutdown
      2. 7.4.2 Active Mode
      3. 7.4.3 Software Reset
    5. 7.5 Programming
      1. 7.5.1 Control Serial Interfaces
        1. 7.5.1.1 I2C Control Interface
          1. 7.5.1.1.1 General I2C Operation
          2. 7.5.1.1.2 I2C Single-Byte and Multiple-Byte Transfers
            1. 7.5.1.1.2.1 I2C Single-Byte Write
            2. 7.5.1.1.2.2 I2C Multiple-Byte Write
            3. 7.5.1.1.2.3 I2C Single-Byte Read
            4. 7.5.1.1.2.4 I2C Multiple-Byte Read
        2. 7.5.1.2 SPI Control Interface
  9. 8 Register Maps
    1. 8.1 Device Configuration Registers
      1. 8.1.1 Book0_P0 Registers
      2. 8.1.2 B0_P1 Registers
      3. 8.1.3 Book0_Page3 Registers
    2. 8.2 Programmable Coefficient Registers
      1. 8.2.1  Programmable Coefficient Registers: Page 8
      2. 8.2.2  Programmable Coefficient Registers: Page 9
      3. 8.2.3  Programmable Coefficient Registers: Page 10
      4. 8.2.4  Programmable Coefficient Registers: Page 11
      5. 8.2.5  Programmable Coefficient Registers: Page 15
      6. 8.2.6  Programmable Coefficient Registers: Page 16
      7. 8.2.7  Programmable Coefficient Registers: Page 17
      8. 8.2.8  Programmable Coefficient Registers: Page 18
      9. 8.2.9  Programmable Coefficient Registers: Page 19
      10. 8.2.10 Programmable Coefficient Registers: Page 25
      11. 8.2.11 Programmable Coefficient Registers: Page 26
      12. 8.2.12 Programmable Coefficient Registers: Page 27
      13. 8.2.13 Programmable Coefficient Registers: Page 28
  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
      4. 9.2.4 Application Performance Plots
      5. 9.2.5 Example Device Register Configuration Script for EVM Setup
    3. 9.3 Power Supply Recommendations
      1. 9.3.1 AVDD_MODE for 1.8V Operation
      2. 9.3.2 IOVDD_IO_MODE for 1.8V and 1.2V Operation
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 ドキュメントの更新通知を受け取る方法
    3. 10.3 サポート・リソース
    4. 10.4 Trademarks
    5. 10.5 静電気放電に関する注意事項
    6. 10.6 用語集
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

7.3.5 Reference Voltage

All audio data converters require a DC reference voltage. The TAC5112 achieves low-noise performance by internally generating a low-noise reference voltage. This reference voltage is generated using a band-gap circuit with high PSRR performance. This audio converter reference voltage must be filtered externally using a minimum 1µF capacitor connected from the VREF pin to the device ground (VSS).

The value of this reference voltage can be configured using the VREF_FSCALE (P0_R77_D[1:0]) register bits and must be set to an appropriate value based on the desired full-scale input for the device and the AVDD supply voltage available in the system. The default VREF value is set to 2.75V, which in turn supports a 2VRMS differential full-scale input to the device. The required minimum AVDD voltage for this mode is 3V. The TAC5112 also supports a high swing mode with 4VRMS differential swing which can be enabled by setting ADC_CHx_FULLSCALE_VAL (P0_R80_D[1] and P0_R85_D[1]) to 1'b1 for each channel independently. Table 7-15 lists the various VREF settings supported along with the required AVDD range and the supported full-scale input signal for that configuration.

Table 7-15 VREF Programmable Settings
P0_R77_D[1:0]: VREF_FSCALE[1:0]VREF OUTPUT VOLTAGE DIFFERENTIAL FULL-SCALE INPUT SUPPORTEDSINGLE-ENDED FULL-SCALE INPUT SUPPORTEDAVDD OPERATION MODE
00 (default)2.75V2VRMS (4 VRMS supported in high swing mode)1VRMS (2 VRMS supported in high swing mode)AVDD 3.3V Operation
012.5V1.818VRMS0.909VRMSAVDD 3.3V Operation
101.375V1VRMS0.5VRMSAVDD 1.8V Operation
11ReservedReservedReservedReserved

To achieve low power consumption, this audio reference block is powered down during the sleep or software shutdown modes as described in Section 7.4. When exiting sleep mode, the audio reference block should be powered up by setting SLEEP_EXIT_VREF_EN (P0_R2_D[3]) to 1'b1. An internal fast-charge scheme helps the VREF pin settle to its steady-state voltage after the settling time (which is a function of the decoupling capacitor on the VREF pin). This time is approximately equal to 3.5ms when using a 1μF decoupling capacitor. If a higher-value decoupling capacitor is used on the VREF pin, the fast-charge setting must be reconfigured using the VREF_QCHG (P0_R2_D[5:4]) register bits, which support options of 3.5ms (default), 10ms, 50ms, or 100ms.