SBASB80 October   2024 TAA3040

ADVANCE INFORMATION  

  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 Interface
    9. 5.9  Switching Characteristics: SPI Interface
    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
  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 Configurations
      4. 6.3.4 Reference Voltage
      5. 6.3.5 Programmable Microphone Bias
      6. 6.3.6 Signal-Chain Processing
        1. 6.3.6.1 Programmable Channel Gain and Digital Volume Control
        2. 6.3.6.2 Programmable Channel Gain Calibration
        3. 6.3.6.3 Programmable Channel Phase Calibration
        4. 6.3.6.4 Programmable Digital High-Pass Filter
        5. 6.3.6.5 Programmable Digital Biquad Filters
        6. 6.3.6.6 Programmable Channel Summer and Digital Mixer
        7. 6.3.6.7 Configurable Digital Decimation Filters
          1. 6.3.6.7.1 Linear Phase Filters
            1. 6.3.6.7.1.1 Sampling Rate: 8 kHz or 7.35 kHz
            2. 6.3.6.7.1.2 Sampling Rate: 16 kHz or 14.7 kHz
            3. 6.3.6.7.1.3 Sampling Rate: 24 kHz or 22.05 kHz
            4. 6.3.6.7.1.4 Sampling Rate: 32 kHz or 29.4 kHz
            5. 6.3.6.7.1.5 Sampling Rate: 48 kHz or 44.1 kHz
            6. 6.3.6.7.1.6 Sampling Rate: 96 kHz or 88.2 kHz
            7. 6.3.6.7.1.7 Sampling Rate: 192 kHz or 176.4 kHz
            8. 6.3.6.7.1.8 Sampling Rate: 384 kHz or 352.8 kHz
            9. 6.3.6.7.1.9 Sampling Rate 768 kHz or 705.6 kHz
          2. 6.3.6.7.2 Low-Latency Filters
            1. 6.3.6.7.2.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 6.3.6.7.2.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 6.3.6.7.2.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 6.3.6.7.2.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 6.3.6.7.2.5 Sampling Rate: 96 kHz or 88.2 kHz
            6. 6.3.6.7.2.6 Sampling Rate 192 kHz or 176.4 kHz
          3. 6.3.6.7.3 Ultra-Low-Latency Filters
            1. 6.3.6.7.3.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 6.3.6.7.3.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 6.3.6.7.3.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 6.3.6.7.3.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 6.3.6.7.3.5 Sampling Rate: 96 kHz or 88.2 kHz
            6. 6.3.6.7.3.6 Sampling Rate 192 kHz or 176.4 kHz
            7. 6.3.6.7.3.7 Sampling Rate 384 kHz or 352.8 kHz
      7. 6.3.7 Automatic Gain Controller (AGC)
      8. 6.3.8 Digital PDM Microphone Record Channel
      9. 6.3.9 Interrupts, Status, and Digital I/O Pin Multiplexing
    4. 6.4 Device Functional Modes
      1. 6.4.1 Hardware Shutdown
      2. 6.4.2 Sleep Mode or Software Shutdown
      3. 6.4.3 Active Mode
      4. 6.4.4 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 Register Descriptions
        1. 7.1.1.1  PAGE_CFG Register (page = 0x00, address = 0x00) [reset = 0h]
        2. 7.1.1.2  SW_RESET Register (page = 0x00, address = 0x01) [reset = 0h]
        3. 7.1.1.3  SLEEP_CFG Register (page = 0x00, address = 0x02) [reset = 0h]
        4. 7.1.1.4  SHDN_CFG Register (page = 0x00, address = 0x05) [reset = 5h]
        5. 7.1.1.5  ASI_CFG0 Register (page = 0x00, address = 0x07) [reset = 30h]
        6. 7.1.1.6  ASI_CFG1 Register (page = 0x00, address = 0x08) [reset = 0h]
        7. 7.1.1.7  ASI_CFG2 Register (page = 0x00, address = 0x09) [reset = 0h]
        8. 7.1.1.8  ASI_CH1 Register (page = 0x00, address = 0x0B) [reset = 0h]
        9. 7.1.1.9  ASI_CH2 Register (page = 0x00, address = 0x0C) [reset = 1h]
        10. 7.1.1.10 ASI_CH3 Register (page = 0x00, address = 0x0D) [reset = 2h]
        11. 7.1.1.11 ASI_CH4 Register (page = 0x00, address = 0x0E) [reset = 3h]
        12. 7.1.1.12 ASI_CH5 Register (page = 0x00, address = 0x0F) [reset = 4h]
        13. 7.1.1.13 ASI_CH6 Register (page = 0x00, address = 0x10) [reset = 5h]
        14. 7.1.1.14 ASI_CH7 Register (page = 0x00, address = 0x11) [reset = 6h]
        15. 7.1.1.15 ASI_CH8 Register (page = 0x00, address = 0x12) [reset = 7h]
        16. 7.1.1.16 MST_CFG0 Register (page = 0x00, address = 0x13) [reset = 2h]
        17. 7.1.1.17 MST_CFG1 Register (page = 0x00, address = 0x14) [reset = 48h]
        18. 7.1.1.18 ASI_STS Register (page = 0x00, address = 0x15) [reset = FFh]
        19. 7.1.1.19 CLK_SRC Register (page = 0x00, address = 0x16) [reset = 10h]
        20. 7.1.1.20 PDMCLK_CFG Register (page = 0x00, address = 0x1F) [reset = 40h]
        21. 7.1.1.21 PDMIN_CFG Register (page = 0x00, address = 0x20) [reset = 0h]
        22. 7.1.1.22 GPIO_CFG0 Register (page = 0x00, address = 0x21) [reset = 22h]
        23. 7.1.1.23 GPO_CFG0 Register (page = 0x00, address = 0x22) [reset = 0h]
        24. 7.1.1.24 GPO_CFG1 Register (page = 0x00, address = 0x23) [reset = 0h]
        25. 7.1.1.25 GPO_CFG2 Register (page = 0x00, address = 0x24) [reset = 0h]
        26. 7.1.1.26 GPO_CFG3 Register (page = 0x00, address = 0x25) [reset = 0h]
        27. 7.1.1.27 GPO_VAL Register (page = 0x00, address = 0x29) [reset = 0h]
        28. 7.1.1.28 GPIO_MON Register (page = 0x00, address = 0x2A) [reset = 0h]
        29. 7.1.1.29 GPI_CFG0 Register (page = 0x00, address = 0x2B) [reset = 0h]
        30. 7.1.1.30 GPI_CFG1 Register (page = 0x00, address = 0x2C) [reset = 0h]
        31. 7.1.1.31 GPI_MON Register (page = 0x00, address = 0x2F) [reset = 0h]
        32. 7.1.1.32 INT_CFG Register (page = 0x00, address = 0x32) [reset = 0h]
        33. 7.1.1.33 INT_MASK0 Register (page = 0x00, address = 0x33) [reset = FFh]
        34. 7.1.1.34 INT_LTCH0 Register (page = 0x00, address = 0x36) [reset = 0h]
        35. 7.1.1.35 BIAS_CFG Register (page = 0x00, address = 0x3B) [reset = 0h]
        36. 7.1.1.36 CH1_CFG0 Register (page = 0x00, address = 0x3C) [reset = 0h]
        37. 7.1.1.37 CH1_CFG1 Register (page = 0x00, address = 0x3D) [reset = 0h]
        38. 7.1.1.38 CH1_CFG2 Register (page = 0x00, address = 0x3E) [reset = C9h]
        39. 7.1.1.39 CH1_CFG3 Register (page = 0x00, address = 0x3F) [reset = 80h]
        40. 7.1.1.40 CH1_CFG4 Register (page = 0x00, address = 0x40) [reset = 0h]
        41. 7.1.1.41 CH2_CFG0 Register (page = 0x00, address = 0x41) [reset = 0h]
        42. 7.1.1.42 CH2_CFG1 Register (page = 0x00, address = 0x42) [reset = 0h]
        43. 7.1.1.43 CH2_CFG2 Register (page = 0x00, address = 0x43) [reset = C9h]
        44. 7.1.1.44 CH2_CFG3 Register (page = 0x00, address = 0x44) [reset = 80h]
        45. 7.1.1.45 CH2_CFG4 Register (page = 0x00, address = 0x45) [reset = 0h]
        46. 7.1.1.46 CH3_CFG0 Register (page = 0x00, address = 0x46) [reset = 0h]
        47. 7.1.1.47 CH3_CFG1 Register (page = 0x00, address = 0x47) [reset = 0h]
        48. 7.1.1.48 CH3_CFG2 Register (page = 0x00, address = 0x48) [reset = C9h]
        49. 7.1.1.49 CH3_CFG3 Register (page = 0x00, address = 0x49) [reset = 80h]
        50. 7.1.1.50 CH3_CFG4 Register (page = 0x00, address = 0x4A) [reset = 0h]
        51. 7.1.1.51 CH4_CFG0 Register (page = 0x00, address = 0x4B) [reset = 0h]
        52. 7.1.1.52 CH4_CFG1 Register (page = 0x00, address = 0x4C) [reset = 0h]
        53. 7.1.1.53 CH4_CFG2 Register (page = 0x00, address = 0x4D) [reset = C9h]
        54. 7.1.1.54 CH4_CFG3 Register (page = 0x00, address = 0x4E) [reset = 80h]
        55. 7.1.1.55 CH4_CFG4 Register (page = 0x00, address = 0x4F) [reset = 0h]
        56. 7.1.1.56 CH5_CFG2 Register (page = 0x00, address = 0x52) [reset = C9h]
        57. 7.1.1.57 CH5_CFG3 Register (page = 0x00, address = 0x53) [reset = 80h]
        58. 7.1.1.58 CH5_CFG4 Register (page = 0x00, address = 0x54) [reset = 0h]
        59. 7.1.1.59 CH6_CFG2 Register (page = 0x00, address = 0x57) [reset = C9h]
        60. 7.1.1.60 CH6_CFG3 Register (page = 0x00, address = 0x58) [reset = 80h]
        61. 7.1.1.61 CH6_CFG4 Register (page = 0x00, address = 0x59) [reset = 0h]
        62. 7.1.1.62 CH7_CFG2 Register (page = 0x00, address = 0x5C) [reset = C9h]
        63. 7.1.1.63 CH7_CFG3 Register (page = 0x00, address = 0x5D) [reset = 80h]
        64. 7.1.1.64 CH7_CFG4 Register (page = 0x00, address = 0x5E) [reset = 0h]
        65. 7.1.1.65 CH8_CFG2 Register (page = 0x00, address = 0x61) [reset = C9h]
        66. 7.1.1.66 CH8_CFG3 Register (page = 0x00, address = 0x62) [reset = 80h]
        67. 7.1.1.67 CH8_CFG4 Register (page = 0x00, address = 0x63) [reset = 0h]
        68. 7.1.1.68 DSP_CFG0 Register (page = 0x00, address = 0x6B) [reset = 1h]
        69. 7.1.1.69 DSP_CFG1 Register (page = 0x00, address = 0x6C) [reset = 40h]
        70. 7.1.1.70 AGC_CFG0 Register (page = 0x00, address = 0x70) [reset = E7h]
        71. 7.1.1.71 IN_CH_EN Register (page = 0x00, address = 0x73) [reset = F0h]
        72. 7.1.1.72 ASI_OUT_CH_EN Register (page = 0x00, address = 0x74) [reset = 0h]
        73. 7.1.1.73 PWR_CFG Register (page = 0x00, address = 0x75) [reset = 0h]
        74. 7.1.1.74 DEV_STS0 Register (page = 0x00, address = 0x76) [reset = 0h]
        75. 7.1.1.75 DEV_STS1 Register (page = 0x00, address = 0x77) [reset = 80h]
        76. 7.1.1.76 I2C_CKSUM Register (page = 0x00, address = 0x7E) [reset = 0h]
    2. 7.2 Programmable Coefficient Registers
      1. 7.2.1 Programmable Coefficient Registers: Page = 0x02
      2. 7.2.2 Programmable Coefficient Registers: Page = 0x03
      3. 7.2.3 Programmable Coefficient Registers: Page = 0x04
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Four-Channel Analog Microphone Recording
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Example Device Register Configuration Script for EVM Setup
      2. 8.2.2 Eight-Channel Digital PDM Microphone Recording
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Example Device Register Configuration Script for EVM Setup
    3. 8.3 What to Do and What Not to Do
      1. 8.3.1 182
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Trademarks
    3. 9.3 Electrostatic Discharge Caution
    4. 9.4 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Package Option Addendum
      1. 11.1.1 Packaging Information
      2. 11.1.2 Tape and Reel Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.3.6.3 Programmable Channel Phase Calibration

In addition to the gain calibration, the phase delay in each channel can be finely calibrated or adjusted in steps of one modulator clock cycle for a cycle range of 0 to 255 for the phase error. The modulator clock, the same clock used for ADC_MOD_CLK, is 6.144 MHz (the output data sample rate is multiples or submultiples of 48 kHz) or 5.6448 MHz (the output data sample rate is multiples or submultiples of 44.1 kHz) irrespective of the analog microphone or digital microphone use case. This feature is very useful for many applications that must match the phase with fine resolution between each channel, including any phase mismatch across channels resulting from external components or microphones. Table 6-15 shows the available programmable options for channel phase calibration.

Table 6-15 Channel Phase Calibration Programmable Settings
P0_R64_D[7:0] : CH1_PCAL[7:0]CHANNEL PHASE CALIBRATION SETTING FOR INPUT CHANNEL 1
0000 0000 = 0d (default)Input channel 1 phase calibration with no delay
0000 0001 = 1dInput channel 1 phase calibration delay is set to one cycle of the modulator clock
0000 0010 = 2dInput channel 1 phase calibration delay is set to two cycles of the modulator clock
……
1111 1110 = 254dInput channel 1 phase calibration delay is set to 254 cycles of the modulator clock
1111 1111 = 255dInput channel 1 phase calibration delay is set to 255 cycles of the modulator clock

Similarly, the channel phase calibration setting for input channel 2 to channel 8 can be configured using the CH2_PCAL (P0_R69) to CH8_PCAL (P0_R99) register bits, respectively.

The phase calibration feature must not be used when the analog input and PDM input are used together for simultaneous conversion.