SBASAU3A May   2023  – January 2024 PCMD3180-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 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 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 Reference Voltage
      4. 6.3.4 Microphone Bias
      5. 6.3.5 Digital PDM Microphone Record Channel
      6. 6.3.6 Signal-Chain Processing
        1. 6.3.6.1 Programmable 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 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 Summary Table Page=0x00
      2. 7.1.2 88
      3. 7.1.3 Register Descriptions
        1. 7.1.3.1  PAGE_CFG Register (page = 0x00, address = 0x00) [reset = 0h]
        2. 7.1.3.2  SW_RESET Register (page = 0x00, address = 0x01) [reset = 0h]
        3. 7.1.3.3  SLEEP_CFG Register (page = 0x00, address = 0x02) [reset = 0h]
        4. 7.1.3.4  SHDN_CFG Register (page = 0x00, address = 0x05) [reset = 5h]
        5. 7.1.3.5  ASI_CFG0 Register (page = 0x00, address = 0x07) [reset = 30h]
        6. 7.1.3.6  ASI_CFG1 Register (page = 0x00, address = 0x08) [reset = 0h]
        7. 7.1.3.7  ASI_CFG2 Register (page = 0x00, address = 0x09) [reset = 0h]
        8. 7.1.3.8  ASI_CH1 Register (page = 0x00, address = 0x0B) [reset = 0h]
        9. 7.1.3.9  ASI_CH2 Register (page = 0x00, address = 0x0C) [reset = 1h]
        10. 7.1.3.10 ASI_CH3 Register (page = 0x00, address = 0x0D) [reset = 2h]
        11. 7.1.3.11 ASI_CH4 Register (page = 0x00, address = 0x0E) [reset = 3h]
        12. 7.1.3.12 ASI_CH5 Register (page = 0x00, address = 0x0F) [reset = 4h]
        13. 7.1.3.13 ASI_CH6 Register (page = 0x00, address = 0x10) [reset = 5h]
        14. 7.1.3.14 ASI_CH7 Register (page = 0x00, address = 0x11) [reset = 6h]
        15. 7.1.3.15 ASI_CH8 Register (page = 0x00, address = 0x12) [reset = 7h]
        16. 7.1.3.16 MST_CFG0 Register (page = 0x00, address = 0x13) [reset = 2h]
        17. 7.1.3.17 MST_CFG1 Register (page = 0x00, address = 0x14) [reset = 48h]
        18. 7.1.3.18 ASI_STS Register (page = 0x00, address = 0x15) [reset = FFh]
        19. 7.1.3.19 CLK_SRC Register (page = 0x00, address = 0x16) [reset = 10h]
        20. 7.1.3.20 PDMCLK_CFG Register (page = 0x00, address = 0x1F) [reset = 40h]
        21. 7.1.3.21 PDMIN_CFG Register (page = 0x00, address = 0x20) [reset = 0h]
        22. 7.1.3.22 GPIO_CFG0 Register (page = 0x00, address = 0x21) [reset = 22h]
        23. 7.1.3.23 GPO_CFG0 Register (page = 0x00, address = 0x22) [reset = 0h]
        24. 7.1.3.24 GPO_CFG1 Register (page = 0x00, address = 0x23) [reset = 0h]
        25. 7.1.3.25 GPO_CFG2 Register (page = 0x00, address = 0x24) [reset = 0h]
        26. 7.1.3.26 PO_CFG3 Register (page = 0x00, address = 0x25) [reset = 0h]
        27. 7.1.3.27 GPO_VAL Register (page = 0x00, address = 0x29) [reset = 0h]
        28. 7.1.3.28 GPIO_MON Register (page = 0x00, address = 0x2A) [reset = 0h]
        29. 7.1.3.29 GPI_CFG0 Register (page = 0x00, address = 0x2B) [reset = 0h]
        30. 7.1.3.30 GPI_CFG1 Register (page = 0x00, address = 0x2C) [reset = 0h]
        31. 7.1.3.31 GPI_MON Register (page = 0x00, address = 0x2F) [reset = 0h]
        32. 7.1.3.32 INT_CFG Register (page = 0x00, address = 0x32) [reset = 0h]
        33. 7.1.3.33 INT_MASK0 Register (page = 0x00, address = 0x33) [reset = FFh]
        34. 7.1.3.34 INT_LTCH0 Register (page = 0x00, address = 0x36) [reset = 0h]
        35. 7.1.3.35 BIAS_CFG Register (page = 0x00, address = 0x3B) [reset = 0h]
        36. 7.1.3.36 CH1_CFG0 Register (page = 0x00, address = 0x3C) [reset = 0h]
        37. 7.1.3.37 CH1_CFG2 Register (page = 0x00, address = 0x3E) [reset = C9h]
        38. 7.1.3.38 CH1_CFG3 Register (page = 0x00, address = 0x3F) [reset = 80h]
        39. 7.1.3.39 CH1_CFG4 Register (page = 0x00, address = 0x40) [reset = 0h]
        40. 7.1.3.40 CH2_CFG0 Register (page = 0x00, address = 0x41) [reset = 0h]
        41. 7.1.3.41 CH2_CFG2 Register (page = 0x00, address = 0x43) [reset = C9h]
        42. 7.1.3.42 CH2_CFG3 Register (page = 0x00, address = 0x44) [reset = 80h]
        43. 7.1.3.43 CH2_CFG4 Register (page = 0x00, address = 0x45) [reset = 0h]
        44. 7.1.3.44 CH3_CFG0 Register (page = 0x00, address = 0x46) [reset = 0h]
        45. 7.1.3.45 CH3_CFG2 Register (page = 0x00, address = 0x48) [reset = C9h]
        46. 7.1.3.46 CH3_CFG3 Register (page = 0x00, address = 0x49) [reset = 80h]
        47. 7.1.3.47 CH3_CFG4 Register (page = 0x00, address = 0x4A) [reset = 0h]
        48. 7.1.3.48 CH4_CFG0 Register (page = 0x00, address = 0x4B) [reset = 0h]
        49. 7.1.3.49 CH4_CFG2 Register (page = 0x00, address = 0x4D) [reset = C9h]
        50. 7.1.3.50 CH4_CFG3 Register (page = 0x00, address = 0x4E) [reset = 80h]
        51. 7.1.3.51 CH4_CFG4 Register (page = 0x00, address = 0x4F) [reset = 0h]
        52. 7.1.3.52 CH5_CFG0 Register (page = 0x00, address = 0x50) [reset = 0h]
        53. 7.1.3.53 CH5_CFG2 Register (page = 0x00, address = 0x52) [reset = C9h]
        54. 7.1.3.54 CH5_CFG3 Register (page = 0x00, address = 0x53) [reset = 80h]
        55. 7.1.3.55 CH5_CFG4 Register (page = 0x00, address = 0x54) [reset = 0h]
        56. 7.1.3.56 CH6_CFG0 Register (page = 0x00, address = 0x55) [reset = 0h]
        57. 7.1.3.57 CH6_CFG2 Register (page = 0x00, address = 0x57) [reset = C9h]
        58. 7.1.3.58 CH6_CFG3 Register (page = 0x00, address = 0x58) [reset = 80h]
        59. 7.1.3.59 CH6_CFG4 Register (page = 0x00, address = 0x59) [reset = 0h]
        60. 7.1.3.60 CH7_CFG0 Register (page = 0x00, address = 0x5A) [reset = 0h]
        61. 7.1.3.61 CH7_CFG2 Register (page = 0x00, address = 0x5C) [reset = C9h]
        62. 7.1.3.62 CH7_CFG3 Register (page = 0x00, address = 0x5D) [reset = 80h]
        63. 7.1.3.63 CH7_CFG4 Register (page = 0x00, address = 0x5E) [reset = 0h]
        64. 7.1.3.64 CH8_CFG0 Register (page = 0x00, address = 0x5F) [reset = 0h]
        65. 7.1.3.65 CH8_CFG2 Register (page = 0x00, address = 0x61) [reset = C9h]
        66. 7.1.3.66 CH8_CFG3 Register (page = 0x00, address = 0x62) [reset = 80h]
        67. 7.1.3.67 CH8_CFG4 Register (page = 0x00, address = 0x63) [reset = 0h]
        68. 7.1.3.68 DSP_CFG0 Register (page = 0x00, address = 0x6B) [reset = 1h]
        69. 7.1.3.69 DSP_CFG1 Register (page = 0x00, address = 0x6C) [reset = 40h]
        70. 7.1.3.70 IN_CH_EN Register (page = 0x00, address = 0x73) [reset = F0h]
        71. 7.1.3.71 ASI_OUT_CH_EN Register (page = 0x00, address = 0x74) [reset = 0h]
        72. 7.1.3.72 PWR_CFG Register (page = 0x00, address = 0x75) [reset = 0h]
        73. 7.1.3.73 DEV_STS0 Register (page = 0x00, address = 0x76) [reset = 0h]
        74. 7.1.3.74 DEV_STS1 Register (page = 0x00, address = 0x77) [reset = 80h]
        75. 7.1.3.75 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 Eight-Channel Digital PDM 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
        3. 8.2.1.3 Application Curves
    3. 8.3 What to Do and What Not to Do
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

Package Options

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

6.3.5 Digital PDM Microphone Record Channel

The device interfaces up to eight digital pulse-density-modulation (PDM) microphones for simultaneous conversion and uses high-order and high-performance decimation filters to generate pulse code modulation (PCM) output data that can be transmitted on the audio serial interface to the host using either time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats.

The device internally generates PCMCLK with a programmable frequency of either 6.144 MHz, 3.072 MHz, 1.536 MHz, or 768 kHz (for output data sample rates in multiples or submultiples of 48 kHz) or 5.6448 MHz, 2.8224 MHz, 1.4112 MHz, or 705.6 kHz (for output data sample rates in multiples or submultiples of 44.1 kHz) using the PDMCLK_DIV[1:0], P0_R31_D[1:0] register bits. PDMCLK can be routed on the PDMCLKx_GPOx pin. This clock can be connected to the external digital microphone device. The device also support control register to independently configure each channel PDMDINx data to be latched using either rising edge or falling edge. Figure 6-14 shows a connection diagram of the digital PDM microphones.

GUID-4A621441-ACEA-4ABC-89A4-A53A7AC7B6E8-low.gif Figure 6-14 Digital PDM Microphones Connection Diagram to the PCMD3180-Q1

The single-bit output of the external digital microphone device can be connected to the GPIx pin. This single data line can be shared by two digital microphones to place their data on the opposite edge of PDMCLK. Internally, the device latches the steady value of the data on the rising edge of PDMCLK or the falling edge of PDMCLK based on the configuration register bits set in P0_R32_D[7:4]. Figure 6-15 shows the digital PDM microphone interface timing diagram.

GUID-DD505051-8067-425E-9213-BA287C83AD40-low.gif Figure 6-15 Digital PDM Microphone Protocol Timing Diagram