ZHCSHK8E october   2017  – july 2023 TAS2770

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  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 I2C Timing Requirements
    7. 6.7 TDM Port Timing Requirements
    8. 6.8 PDM Port Timing Requirements
    9. 6.9 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Device Mode and Address Selection
      2. 8.3.2 General I2C Operation
      3. 8.3.3 Single-Byte and Multiple-Byte Transfers
      4. 8.3.4 Single-Byte Write
      5. 8.3.5 Multiple-Byte Write and Incremental Multiple-Byte Write
      6. 8.3.6 Single-Byte Read
      7. 8.3.7 Multiple-Byte Read
      8. 8.3.8 Register Organization
    4. 8.4 Device Functional Modes
      1. 8.4.1  PDM Input
      2. 8.4.2  TDM Port
      3. 8.4.3  Playback Signal Path
        1. 8.4.3.1 High Pass Filter
        2. 8.4.3.2 Digital Volume Control and Amplifier Output Level
        3. 8.4.3.3 Audio Playback Selection
        4. 8.4.3.4 Battery Tracking Limiter with Brown Out Prevention
        5. 8.4.3.5 Inter Chip Limiter Alignment
          1. 8.4.3.5.1 TDM Mode
        6. 8.4.3.6 Class-D Settings
      4. 8.4.4  SAR ADC
      5. 8.4.5  IV Sense
      6. 8.4.6  Clocks and PLL
      7. 8.4.7  Operational Modes
        1. 8.4.7.1 Hardware Shutdown
        2. 8.4.7.2 Software Shutdown
        3. 8.4.7.3 Mute
        4. 8.4.7.4 Active
        5. 8.4.7.5 Mode Control and Software Reset
      8. 8.4.8  Faults and Status
      9. 8.4.9  Power Sequencing Requirements
      10. 8.4.10 Digital Input Pull Downs
    5. 8.5 Register Maps
      1. 8.5.1 Register Summary Table Book=0x00 Page=0x00
      2. 8.5.2 Register Maps
        1. 8.5.2.1  PAGE (book=0x00 page=0x00 address=0x00) [reset=0h]
        2. 8.5.2.2  SW_RESET (book=0x00 page=0x00 address=0x01) [reset=0h]
        3. 8.5.2.3  PWR_CTL (book=0x00 page=0x00 address=0x02) [reset=Eh]
        4. 8.5.2.4  PB_CFG0 (book=0x00 page=0x00 address=0x03) [reset=10h]
        5. 8.5.2.5  PB_CFG1 (book=0x00 page=0x00 address=0x04) [reset=1h]
        6. 8.5.2.6  PB_CFG2 (book=0x00 page=0x00 address=0x05) [reset=0h]
        7. 8.5.2.7  PB_CFG3 (book=0x00 page=0x00 address=0x06) [reset=0h]
        8. 8.5.2.8  MISC_CFG (book=0x00 page=0x00 address=0x07) [reset=6h]
        9. 8.5.2.9  PDM_CFG0 (book=0x00 page=0x00 address=0x08) [reset=0h]
        10. 8.5.2.10 PDM_CFG1 (book=0x00 page=0x00 address=0x09) [reset=8h]
        11. 8.5.2.11 TDM_CFG0 (book=0x00 page=0x00 address=0x0A) [reset=7h]
        12. 8.5.2.12 TDM_CFG1 (book=0x00 page=0x00 address=0x0B) [reset=2h]
        13. 8.5.2.13 TDM_CFG2 (book=0x00 page=0x00 address=0x0C) [reset=Ah]
        14. 8.5.2.14 TDM_CFG3 (book=0x00 page=0x00 address=0x0D) [reset=10h]
        15. 8.5.2.15 TDM_CFG4 (book=0x00 page=0x00 address=0x0E) [reset=13h]
        16. 8.5.2.16 TDM_CFG5 (book=0x00 page=0x00 address=0x0F) [reset=2h]
        17. 8.5.2.17 TDM_CFG6 (book=0x00 page=0x00 address=0x10) [reset=0h]
        18. 8.5.2.18 TDM_CFG7 (book=0x00 page=0x00 address=0x11) [reset=4h]
        19. 8.5.2.19 TDM_CFG8 (book=0x00 page=0x00 address=0x12) [reset=6h]
        20. 8.5.2.20 TDM_CFG9 (book=0x00 page=0x00 address=0x13) [reset=7h]
        21. 8.5.2.21 TDM_CFG10 (book=0x00 page=0x00 address=0x14) [reset=8h]
        22. 8.5.2.22 LIM_CFG0 (book=0x00 page=0x00 address=0x15) [reset=14h]
        23. 8.5.2.23 LIM_CFG1 (book=0x00 page=0x00 address=0x16) [reset=76h]
        24. 8.5.2.24 LIM_CFG2 (book=0x00 page=0x00 address=0x17) [reset=10h]
        25. 8.5.2.25 LIM_CFG3 (book=0x00 page=0x00 address=0x18) [reset=6Eh]
        26. 8.5.2.26 LIM_CFG4 (book=0x00 page=0x00 address=0x19) [reset=1Eh]
        27. 8.5.2.27 LIM_CFG5 (book=0x00 page=0x00 address=0x1A) [reset=58h]
        28. 8.5.2.28 BOP_CFG0 (book=0x00 page=0x00 address=0x1B) [reset=1h]
        29. 8.5.2.29 BOP_CFG1 (book=0x00 page=0x00 address=0x1C) [reset=14h]
        30. 8.5.2.30 BOP_CFG2 (book=0x00 page=0x00 address=0x1D) [reset=4Eh]
        31. 8.5.2.31 ICLA_CFG0 (book=0x00 page=0x00 address=0x1E) [reset=0h]
        32. 8.5.2.32 ICLA_CFG1 (book=0x00 page=0x00 address=0x1F) [reset=0h]
        33. 8.5.2.33 INT_MASK0 (book=0x00 page=0x00 address=0x20) [reset=FCh]
        34. 8.5.2.34 INT_MASK1 (book=0x00 page=0x00 address=0x21) [reset=B1h]
        35. 8.5.2.35 INT_LIVE0 (book=0x00 page=0x00 address=0x22) [reset=0h]
        36. 8.5.2.36 INT_LIVE1 (book=0x00 page=0x00 address=0x23) [reset=0h]
        37. 8.5.2.37 INT_LTCH0 (book=0x00 page=0x00 address=0x24) [reset=0h]
        38. 8.5.2.38 INT_LTCH1 (book=0x00 page=0x00 address=0x25) [reset=0h]
        39. 8.5.2.39 INT_LTCH2 (book=0x00 page=0x00 address=0x26) [reset=0h]
        40. 8.5.2.40 VBAT_MSB (book=0x00 page=0x00 address=0x27) [reset=0h]
        41. 8.5.2.41 VBAT_LSB (book=0x00 page=0x00 address=0x28) [reset=0h]
        42. 8.5.2.42 TEMP_MSB (book=0x00 page=0x00 address=0x29) [reset=0h]
        43. 8.5.2.43 TEMP_LSB (book=0x00 page=0x00 address=0x2A) [reset=0h]
        44. 8.5.2.44 INT_CFG (book=0x00 page=0x00 address=0x30) [reset=5h]
        45. 8.5.2.45 DIN_PD (book=0x00 page=0x00 address=0x31) [reset=0h]
        46. 8.5.2.46 MISC_IRQ (book=0x00 page=0x00 address=0x32) [reset=81h]
        47. 8.5.2.47 CLOCK_CFG (book=0x00 page=0x00 address=0x3C) [reset=Dh]
        48. 8.5.2.48 TDM_DET (book=0x00 page=0x00 address=0x77) [reset=7Fh]
        49. 8.5.2.49 REV_ID (book=0x00 page=0x00 address=0x7D) [reset=20h]
        50. 8.5.2.50 I2C_CKSUM (book=0x00 page=0x00 address=0x7E) [reset=0h]
        51. 8.5.2.51 BOOK (book=0x00 page=0x00 address=0x7F) [reset=0h]
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Overview
        2. 9.2.2.2 Select Input Capacitance
        3. 9.2.2.3 Select Decoupling Capacitors
        4. 9.2.2.4 Select Bootstrap Capacitors
      3. 9.2.3 Application Curves
    3. 9.3 Initialization Set Up
      1. 9.3.1 Initial Device Configuration - Auto Rate
      2. 9.3.2 Initial Device Configuration - 48 kHz
      3. 9.3.3 Initial Device Configuration - 44.1 kHz
      4. 9.3.4 Sample Rate Change - 48 kHz to 44.1kHz
      5. 9.3.5 Sample Rate Change - 44.1 kHz to 48 kHz
      6. 9.3.6 Device Mute
      7. 9.3.7 Device Un-Mute
      8. 9.3.8 Device Sleep
      9. 9.3.9 Device Wake
  11. 10Power Supply Recommendations
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resources
    3. 12.3 Trademarks
  14. 13Mechanical, Packaging, and Orderable Information

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8.4.6 Clocks and PLL

In TMD/I2C Mode, the device operates from SBCLK. Table 8-74 and Table 8-75 below shows the valid SBCLK frequencies for each sample rate and SBCLK to FSYNC ratio (for 44.1 kHz and 48 kHz family frequencies respectively.

If the sample rate is properly configured through the SAMP_RATE[1:0] bits, no additional configuration is required as long as the SBCLK to FSYNC ratio is valid. The device will detect improper SBCLK frequencies and SBCLK to FSYNC ratios and volume ramp down the playback path to minimize audible artifacts.

Table 8-74 Supported SBCLK Frequencies (48 kHz based sample rates)
Sample Rate (kHz)SBCLK to FSYNC Ratio
6496128192256384512
48 kHz3.072 MHz4.608 MHz6.144 MHz9.216 MHz12.288 MHz18.432 MHz24.576 MHz
96 kHz6.144 MHz9.216 MHz12.288 MHz18.432 MHz24.576 MHz--
192 kHz12.288 MHz18.432 MHz24.576 MHz----
Table 8-75 Supported SBCLK Frequencies (44.1 kHz based sample rates)
Sample Rate (kHz)SBCLK to FSYNC Ratio
6496128192256384512
44.1 kHz2.8224 MHz4.2336 MHz5.6448 MHz8.4672 MHz11.2896 MHz16.9344 MHz22.5792 MHz
88.2 kHz5.6448 MHz8.4672 MHz11.2896 MHz16.9344 MHz22.5792 MHz--
176.4 kHz11.2896 MHz16.9344 MHz22.5792 MHz----