ZHCSK12A July   2019  – October 2019 TLV320ADC6140

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     简化方框图
  4. 4 修订历史记录
  5. 5 器件比较表
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Timing Requirements: I2C Interface
    7. 7.7  Switching Characteristics: I2C Interface
    8. 7.8  Timing Requirements: SPI Interface
    9. 7.9  Switching Characteristics: SPI Interface
    10. 7.10 Timing Requirements: TDM, I2S or LJ Interface
    11. 7.11 Switching Characteristics: TDM, I2S or LJ Interface
    12. 7.12 Timing Requirements: PDM Digital Microphone Interface
    13. 7.13 Switching Characteristics: PDM Digial Microphone Interface
    14. 7.14 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Serial Interfaces
        1. 8.3.1.1 Control Serial Interfaces
        2. 8.3.1.2 Audio Serial Interfaces
          1. 8.3.1.2.1 Time Division Multiplexed Audio (TDM) Interface
          2. 8.3.1.2.2 Inter IC Sound (I2S) Interface
          3. 8.3.1.2.3 Left-Justified (LJ) Interface
        3. 8.3.1.3 Using Multiple Devices With Shared Buses
      2. 8.3.2  Phase-Locked Loop (PLL) and Clock Generation
      3. 8.3.3  Input Channel Configurations
      4. 8.3.4  Reference Voltage
      5. 8.3.5  Programmable Microphone Bias
      6. 8.3.6  Signal-Chain Processing
        1. 8.3.6.1 Programmable Channel Gain and Digital Volume Control
        2. 8.3.6.2 Programmable Channel Gain Calibration
        3. 8.3.6.3 Programmable Channel Phase Calibration
        4. 8.3.6.4 Programmable Digital High-Pass Filter
        5. 8.3.6.5 Programmable Digital Biquad Filters
        6. 8.3.6.6 Programmable Channel Summer and Digital Mixer
        7. 8.3.6.7 Configurable Digital Decimation Filters
          1. 8.3.6.7.1 Linear Phase Filters
            1. 8.3.6.7.1.1 Sampling Rate: 8 kHz or 7.35 kHz
            2. 8.3.6.7.1.2 Sampling Rate: 16 kHz or 14.7 kHz
            3. 8.3.6.7.1.3 Sampling Rate: 24 kHz or 22.05 kHz
            4. 8.3.6.7.1.4 Sampling Rate: 32 kHz or 29.4 kHz
            5. 8.3.6.7.1.5 Sampling Rate: 48 kHz or 44.1 kHz
            6. 8.3.6.7.1.6 Sampling Rate: 96 kHz or 88.2 kHz
            7. 8.3.6.7.1.7 Sampling Rate: 192 kHz or 176.4 kHz
            8. 8.3.6.7.1.8 Sampling Rate: 384 kHz or 352.8 kHz
            9. 8.3.6.7.1.9 Sampling Rate 768 kHz or 705.6 kHz
          2. 8.3.6.7.2 Low-Latency Filters
            1. 8.3.6.7.2.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 8.3.6.7.2.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 8.3.6.7.2.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 8.3.6.7.2.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 8.3.6.7.2.5 Sampling Rate: 96 kHz or 88.2 kHz
            6. 8.3.6.7.2.6 Sampling Rate 192 kHz or 176.4 kHz
          3. 8.3.6.7.3 Ultra-Low-Latency Filters
            1. 8.3.6.7.3.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 8.3.6.7.3.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 8.3.6.7.3.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 8.3.6.7.3.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 8.3.6.7.3.5 Sampling Rate: 96 kHz or 88.2 kHz
            6. 8.3.6.7.3.6 Sampling Rate 192 kHz or 176.4 kHz
            7. 8.3.6.7.3.7 Sampling Rate 384 kHz or 352.8 kHz
      7. 8.3.7  Dynamic Range Enhancer (DRE)
      8. 8.3.8  Automatic Gain Controller (AGC)
      9. 8.3.9  Digital PDM Microphone Record Channel
      10. 8.3.10 Interrupts, Status, and Digital I/O Pin Multiplexing
    4. 8.4 Device Functional Modes
      1. 8.4.1 Hardware Shutdown
      2. 8.4.2 Sleep Mode or Software Shutdown
      3. 8.4.3 Active Mode
      4. 8.4.4 Software Reset
    5. 8.5 Programming
      1. 8.5.1 Control Serial Interfaces
        1. 8.5.1.1 I2C Control Interface
          1. 8.5.1.1.1 General I2C Operation
          2. 8.5.1.1.2 I2C Single-Byte and Multiple-Byte Transfers
            1. 8.5.1.1.2.1 I2C Single-Byte Write
            2. 8.5.1.1.2.2 I2C Multiple-Byte Write
            3. 8.5.1.1.2.3 I2C Single-Byte Read
            4. 8.5.1.1.2.4 I2C Multiple-Byte Read
        2. 8.5.1.2 SPI Control Interface
          1. Table 1. SPI Command Word
    6. 8.6 Register Maps
      1. 8.6.1 Device Configuration Registers
        1. 8.6.1.1 Register Descriptions
          1. 8.6.1.1.1  PAGE_CFG Register (page = 0x00, address = 0x00) [reset = 0h]
            1. Table 53. PAGE_CFG Register Field Descriptions
          2. 8.6.1.1.2  SW_RESET Register (page = 0x00, address = 0x01) [reset = 0h]
            1. Table 54. SW_RESET Register Field Descriptions
          3. 8.6.1.1.3  SLEEP_CFG Register (page = 0x00, address = 0x02) [reset = 0h]
            1. Table 55. SLEEP_CFG Register Field Descriptions
          4. 8.6.1.1.4  SHDN_CFG Register (page = 0x00, address = 0x05) [reset = 5h]
            1. Table 56. SHDN_CFG Register Field Descriptions
          5. 8.6.1.1.5  ASI_CFG0 Register (page = 0x00, address = 0x07) [reset = 30h]
            1. Table 57. ASI_CFG0 Register Field Descriptions
          6. 8.6.1.1.6  ASI_CFG1 Register (page = 0x00, address = 0x08) [reset = 0h]
            1. Table 58. ASI_CFG1 Register Field Descriptions
          7. 8.6.1.1.7  ASI_CFG2 Register (page = 0x00, address = 0x09) [reset = 0h]
            1. Table 59. ASI_CFG2 Register Field Descriptions
          8. 8.6.1.1.8  ASI_CH1 Register (page = 0x00, address = 0x0B) [reset = 0h]
            1. Table 60. ASI_CH1 Register Field Descriptions
          9. 8.6.1.1.9  ASI_CH2 Register (page = 0x00, address = 0x0C) [reset = 1h]
            1. Table 61. ASI_CH2 Register Field Descriptions
          10. 8.6.1.1.10 ASI_CH3 Register (page = 0x00, address = 0x0D) [reset = 2h]
            1. Table 62. ASI_CH3 Register Field Descriptions
          11. 8.6.1.1.11 ASI_CH4 Register (page = 0x00, address = 0x0E) [reset = 3h]
            1. Table 63. ASI_CH4 Register Field Descriptions
          12. 8.6.1.1.12 ASI_CH5 Register (page = 0x00, address = 0x0F) [reset = 4h]
            1. Table 64. ASI_CH5 Register Field Descriptions
          13. 8.6.1.1.13 ASI_CH6 Register (page = 0x00, address = 0x10) [reset = 5h]
            1. Table 65. ASI_CH6 Register Field Descriptions
          14. 8.6.1.1.14 ASI_CH7 Register (page = 0x00, address = 0x11) [reset = 6h]
            1. Table 66. ASI_CH7 Register Field Descriptions
          15. 8.6.1.1.15 ASI_CH8 Register (page = 0x00, address = 0x12) [reset = 7h]
            1. Table 67. ASI_CH8 Register Field Descriptions
          16. 8.6.1.1.16 MST_CFG0 Register (page = 0x00, address = 0x13) [reset = 2h]
            1. Table 68. MST_CFG0 Register Field Descriptions
          17. 8.6.1.1.17 MST_CFG1 Register (page = 0x00, address = 0x14) [reset = 48h]
            1. Table 69. MST_CFG1 Register Field Descriptions
          18. 8.6.1.1.18 ASI_STS Register (page = 0x00, address = 0x15) [reset = FFh]
            1. Table 70. ASI_STS Register Field Descriptions
          19. 8.6.1.1.19 CLK_SRC Register (page = 0x00, address = 0x16) [reset = 10h]
            1. Table 71. CLK_SRC Register Field Descriptions
          20. 8.6.1.1.20 PDMCLK_CFG Register (page = 0x00, address = 0x1F) [reset = 40h]
            1. Table 72. PDMCLK_CFG Register Field Descriptions
          21. 8.6.1.1.21 PDMIN_CFG Register (page = 0x00, address = 0x20) [reset = 0h]
            1. Table 73. PDMIN_CFG Register Field Descriptions
          22. 8.6.1.1.22 GPIO_CFG0 Register (page = 0x00, address = 0x21) [reset = 22h]
            1. Table 74. GPIO_CFG0 Register Field Descriptions
          23. 8.6.1.1.23 GPO_CFG0 Register (page = 0x00, address = 0x22) [reset = 0h]
            1. Table 75. GPO_CFG0 Register Field Descriptions
          24. 8.6.1.1.24 GPO_CFG1 Register (page = 0x00, address = 0x23) [reset = 0h]
            1. Table 76. GPO_CFG1 Register Field Descriptions
          25. 8.6.1.1.25 GPO_CFG2 Register (page = 0x00, address = 0x24) [reset = 0h]
            1. Table 77. GPO_CFG2 Register Field Descriptions
          26. 8.6.1.1.26 GPO_CFG3 Register (page = 0x00, address = 0x25) [reset = 0h]
            1. Table 78. GPO_CFG3 Register Field Descriptions
          27. 8.6.1.1.27 GPO_VAL Register (page = 0x00, address = 0x29) [reset = 0h]
            1. Table 79. GPO_VAL Register Field Descriptions
          28. 8.6.1.1.28 GPIO_MON Register (page = 0x00, address = 0x2A) [reset = 0h]
            1. Table 80. GPIO_MON Register Field Descriptions
          29. 8.6.1.1.29 GPI_CFG0 Register (page = 0x00, address = 0x2B) [reset = 0h]
            1. Table 81. GPI_CFG0 Register Field Descriptions
          30. 8.6.1.1.30 GPI_CFG1 Register (page = 0x00, address = 0x2C) [reset = 0h]
            1. Table 82. GPI_CFG1 Register Field Descriptions
          31. 8.6.1.1.31 GPI_MON Register (page = 0x00, address = 0x2F) [reset = 0h]
            1. Table 83. GPI_MON Register Field Descriptions
          32. 8.6.1.1.32 INT_CFG Register (page = 0x00, address = 0x32) [reset = 0h]
            1. Table 84. INT_CFG Register Field Descriptions
          33. 8.6.1.1.33 INT_MASK0 Register (page = 0x00, address = 0x33) [reset = FFh]
            1. Table 85. INT_MASK0 Register Field Descriptions
          34. 8.6.1.1.34 INT_LTCH0 Register (page = 0x00, address = 0x36) [reset = 0h]
            1. Table 86. INT_LTCH0 Register Field Descriptions
          35. 8.6.1.1.35 BIAS_CFG Register (page = 0x00, address = 0x3B) [reset = 0h]
            1. Table 87. BIAS_CFG Register Field Descriptions
          36. 8.6.1.1.36 CH1_CFG0 Register (page = 0x00, address = 0x3C) [reset = 0h]
            1. Table 88. CH1_CFG0 Register Field Descriptions
          37. 8.6.1.1.37 CH1_CFG1 Register (page = 0x00, address = 0x3D) [reset = 0h]
            1. Table 89. CH1_CFG1 Register Field Descriptions
          38. 8.6.1.1.38 CH1_CFG2 Register (page = 0x00, address = 0x3E) [reset = C9h]
            1. Table 90. CH1_CFG2 Register Field Descriptions
          39. 8.6.1.1.39 CH1_CFG3 Register (page = 0x00, address = 0x3F) [reset = 80h]
            1. Table 91. CH1_CFG3 Register Field Descriptions
          40. 8.6.1.1.40 CH1_CFG4 Register (page = 0x00, address = 0x40) [reset = 0h]
            1. Table 92. CH1_CFG4 Register Field Descriptions
          41. 8.6.1.1.41 CH2_CFG0 Register (page = 0x00, address = 0x41) [reset = 0h]
            1. Table 93. CH2_CFG0 Register Field Descriptions
          42. 8.6.1.1.42 CH2_CFG1 Register (page = 0x00, address = 0x42) [reset = 0h]
            1. Table 94. CH2_CFG1 Register Field Descriptions
          43. 8.6.1.1.43 CH2_CFG2 Register (page = 0x00, address = 0x43) [reset = C9h]
            1. Table 95. CH2_CFG2 Register Field Descriptions
          44. 8.6.1.1.44 CH2_CFG3 Register (page = 0x00, address = 0x44) [reset = 80h]
            1. Table 96. CH2_CFG3 Register Field Descriptions
          45. 8.6.1.1.45 CH2_CFG4 Register (page = 0x00, address = 0x45) [reset = 0h]
            1. Table 97. CH2_CFG4 Register Field Descriptions
          46. 8.6.1.1.46 CH3_CFG0 Register (page = 0x00, address = 0x46) [reset = 0h]
            1. Table 98. CH3_CFG0 Register Field Descriptions
          47. 8.6.1.1.47 CH3_CFG1 Register (page = 0x00, address = 0x47) [reset = 0h]
            1. Table 99. CH3_CFG1 Register Field Descriptions
          48. 8.6.1.1.48 CH3_CFG2 Register (page = 0x00, address = 0x48) [reset = C9h]
            1. Table 100. CH3_CFG2 Register Field Descriptions
          49. 8.6.1.1.49 CH3_CFG3 Register (page = 0x00, address = 0x49) [reset = 80h]
            1. Table 101. CH3_CFG3 Register Field Descriptions
          50. 8.6.1.1.50 CH3_CFG4 Register (page = 0x00, address = 0x4A) [reset = 0h]
            1. Table 102. CH3_CFG4 Register Field Descriptions
          51. 8.6.1.1.51 CH4_CFG0 Register (page = 0x00, address = 0x4B) [reset = 0h]
            1. Table 103. CH4_CFG0 Register Field Descriptions
          52. 8.6.1.1.52 CH4_CFG1 Register (page = 0x00, address = 0x4C) [reset = 0h]
            1. Table 104. CH4_CFG1 Register Field Descriptions
          53. 8.6.1.1.53 CH4_CFG2 Register (page = 0x00, address = 0x4D) [reset = C9h]
            1. Table 105. CH4_CFG2 Register Field Descriptions
          54. 8.6.1.1.54 CH4_CFG3 Register (page = 0x00, address = 0x4E) [reset = 80h]
            1. Table 106. CH4_CFG3 Register Field Descriptions
          55. 8.6.1.1.55 CH4_CFG4 Register (page = 0x00, address = 0x4F) [reset = 0h]
            1. Table 107. CH4_CFG4 Register Field Descriptions
          56. 8.6.1.1.56 CH5_CFG2 Register (page = 0x00, address = 0x52) [reset = C9h]
            1. Table 108. CH5_CFG2 Register Field Descriptions
          57. 8.6.1.1.57 CH5_CFG3 Register (page = 0x00, address = 0x53) [reset = 80h]
            1. Table 109. CH5_CFG3 Register Field Descriptions
          58. 8.6.1.1.58 CH5_CFG4 Register (page = 0x00, address = 0x54) [reset = 0h]
            1. Table 110. CH5_CFG4 Register Field Descriptions
          59. 8.6.1.1.59 CH6_CFG2 Register (page = 0x00, address = 0x57) [reset = C9h]
            1. Table 111. CH6_CFG2 Register Field Descriptions
          60. 8.6.1.1.60 CH6_CFG3 Register (page = 0x00, address = 0x58) [reset = 80h]
            1. Table 112. CH6_CFG3 Register Field Descriptions
          61. 8.6.1.1.61 CH6_CFG4 Register (page = 0x00, address = 0x59) [reset = 0h]
            1. Table 113. CH6_CFG4 Register Field Descriptions
          62. 8.6.1.1.62 CH7_CFG2 Register (page = 0x00, address = 0x5C) [reset = C9h]
            1. Table 114. CH7_CFG2 Register Field Descriptions
          63. 8.6.1.1.63 CH7_CFG3 Register (page = 0x00, address = 0x5D) [reset = 80h]
            1. Table 115. CH7_CFG3 Register Field Descriptions
          64. 8.6.1.1.64 CH7_CFG4 Register (page = 0x00, address = 0x5E) [reset = 0h]
            1. Table 116. CH7_CFG4 Register Field Descriptions
          65. 8.6.1.1.65 CH8_CFG2 Register (page = 0x00, address = 0x61) [reset = C9h]
            1. Table 117. CH8_CFG2 Register Field Descriptions
          66. 8.6.1.1.66 CH8_CFG3 Register (page = 0x00, address = 0x62) [reset = 80h]
            1. Table 118. CH8_CFG3 Register Field Descriptions
          67. 8.6.1.1.67 CH8_CFG4 Register (page = 0x00, address = 0x63) [reset = 0h]
            1. Table 119. CH8_CFG4 Register Field Descriptions
          68. 8.6.1.1.68 DSP_CFG0 Register (page = 0x00, address = 0x6B) [reset = 1h]
            1. Table 120. DSP_CFG0 Register Field Descriptions
          69. 8.6.1.1.69 DSP_CFG1 Register (page = 0x00, address = 0x6C) [reset = 40h]
            1. Table 121. DSP_CFG1 Register Field Descriptions
          70. 8.6.1.1.70 DRE_CFG0 Register (page = 0x00, address = 0x6D) [reset = 7Bh]
            1. Table 122. DRE_CFG0 Register Field Descriptions
          71. 8.6.1.1.71 AGC_CFG0 Register (page = 0x00, address = 0x70) [reset = E7h]
            1. Table 123. AGC_CFG0 Register Field Descriptions
          72. 8.6.1.1.72 IN_CH_EN Register (page = 0x00, address = 0x73) [reset = F0h]
            1. Table 124. IN_CH_EN Register Field Descriptions
          73. 8.6.1.1.73 ASI_OUT_CH_EN Register (page = 0x00, address = 0x74) [reset = 0h]
            1. Table 125. ASI_OUT_CH_EN Register Field Descriptions
          74. 8.6.1.1.74 PWR_CFG Register (page = 0x00, address = 0x75) [reset = 0h]
            1. Table 126. PWR_CFG Register Field Descriptions
          75. 8.6.1.1.75 DEV_STS0 Register (page = 0x00, address = 0x76) [reset = 0h]
            1. Table 127. DEV_STS0 Register Field Descriptions
          76. 8.6.1.1.76 DEV_STS1 Register (page = 0x00, address = 0x77) [reset = 80h]
            1. Table 128. DEV_STS1 Register Field Descriptions
          77. 8.6.1.1.77 I2C_CKSUM Register (page = 0x00, address = 0x7E) [reset = 0h]
            1. Table 129. I2C_CKSUM Register Field Descriptions
      2. 8.6.2 Programmable Coefficient Registers
        1. 8.6.2.1 Programmable Coefficient Registers: Page = 0x02
        2. 8.6.2.2 Programmable Coefficient Registers: Page = 0x03
        3. 8.6.2.3 Programmable Coefficient Registers: Page = 0x04
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Four-Channel Analog Microphone Recording
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Example Device Register Configuration Script for EVM Setup
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Eight-Channel Digital PDM Microphone Recording
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Example Device Register Configuration Script for EVM Setup
    3. 9.3 What to Do and What Not to Do
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 文档支持
      1. 12.1.1 相关文档
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

7.5 Electrical Characteristics

at TA = 25°C, AVDD = 3.3 V, IOVDD = 3.3 V, fIN = 1-kHz sinusoidal signal, fS = 48 kHz, 32-bit audio data, BCLK = 256 × fS, TDM slave mode, PLL on (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ADC CONFIGURATION
AC input impedance Input pins INxP or INxM, 2.5-kΩ input impedance selection 2.5 kΩ
Input pins INxP or INxM, 10-kΩ input impedance selection 10
Input pins INxP or INxM, 20-kΩ input impednace selection 20
Channel gain range Programmable range with 1-dB steps 0 42 dB
ADC PERFORMANCE FOR LINE/MICROPHONE INPUT RECORDING : AVDD 3.3-V OPERATION
Differential input full-scale AC signal voltage AC-coupled input 2 VRMS
Single-ended input full-scale AC signal voltage AC-coupled input 1 VRMS
SNR Signal-to-noise ratio, A-weighted(1)(2) IN1 differential input selected and AC signal shorted to ground, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 2.5-kΩ input impedance selection 115 122 dB
IN1 differential input selected and AC signal shorted to ground, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 10-kΩ input impedance selection 117
IN1 differential input selected and AC signal shorted to ground, DRE disabled, 2.5-kΩ input impedance selection, 0-dB channel gain 106 112
IN1 differential input selected and AC signal shorted to ground, DRE disabled, 2.5-kΩ input impedance selection, 12-dB channel gain 108
DR Dynamic range, A-weighted(2) IN1 differential input selected and –60-dB full-scale AC signal input, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 2.5-kΩ input impedance selection 123 dB
IN1 differential input selected and –60-dB full-scale AC signal input, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 10-kΩ input impedance selection 118
IN1 differential input selected and –60-dB full-scale AC signal input, DRE disabled, 2.5-kΩ input impedance selection, 0-dB channel gain 113
IN1 differential input selected and –72-dB full-scale AC signal input, DRE disabled, 2.5-kΩ input impedance selection, 12-dB channel gain 108
THD+N Total harmonic distortion(2)(3) IN1 differential input selected and –1-dB full-scale AC signal input, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 2.5-kΩ input impedance selection –98 –80 dB
IN1 differential input selected and –1-dB full-scale AC signal input, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 10-kΩ input impedance selection –98
IN1 differential input selected and –1-dB full-scale AC signal input, DRE disabled, 2.5-kΩ input impedance selection, 0-dB channel gain –98
IN1 differential input selected and –13-dB full-scale AC signal input, DRE disabled, 2.5-kΩ input impedance selection, 12-dB channel gain –98
ADC PERFORMANCE FOR LINE/MICROPHONE INPUT RECORDING : AVDD 1.8-V OPERATION
Differential input full-scale AC signal voltage AC-coupled Input 1 VRMS
Single-ended input full-scale AC signal voltage AC-coupled Input 0.5 VRMS
SNR Signal-to-noise ratio, A-weighted(1)(2) IN1 differential input selected and AC signal shorted to ground, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 2.5-kΩ input impedance selection 116 dB
IN1 differential input selected and AC signal shorted to ground, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 10-kΩ input impedance selection 111
IN1 differential input selected and AC signal shorted to ground, DRE disabled, 2.5-kΩ input impedance selection, 0-dB channel gain 105
DR Dynamic range, A-weighted(2) IN1 differential input selected and –60-dB full-scale AC signal input, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 2.5-kΩ input impedance selection 117 dB
IN1 differential input selected and –60-dB full-scale AC signal input, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 10-kΩ input impedance selection 112
IN1 differential input selected and –60-dB full-scale AC signal input, DRE disabled, 2.5-kΩ input impedance selection, 0-dB channel gain 106
THD+N Total harmonic distortion(2)(3) IN1 differential input selected and –2-dB full-scale AC signal input, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 2.5-kΩ input impedance selection –90 dB
IN1 differential input selected and –2-dB full-scale AC signal input, DRE enabled (DRE_LVL = –36 dB, DRE_MAXGAIN = 24 dB), 10-kΩ input impedance selection –90
IN1 differential input selected and –2-dB full-scale AC signal Input, DRE disabled, 2.5-kΩ input impedance selection, 0 dB channel gain –90
ADC OTHER PARAMETERS
Digital volume control range Programmable 0.5-dB steps –100 27 dB
Output data sample rate Programmable 7.35 768 kHz
Output data sample word length Programmable 16 32 Bits
Digital high-pass filter cutoff frequency First-order IIR filter with programmable coefficients, –3-dB point (default setting) 12 Hz
Interchannel isolation –1-dB full-scale AC-signal input to non measurement channel –124 dB
Interchannel gain mismatch –6-dB full-scale AC-signal input and 0-dB channel gain 0.1 dB
Gain drift 0-dB channel gain, across temperature range 15°C to 35°C –4.4 ppm/°C
Interchannel phase mismatch 1-kHz sinusoidal signal 0.02 Degrees
Phase drift 1-kHz sinusoidal signal, across temperature range 15°C to 35°C 0.0005 Degrees/°C
PSRR Power-supply rejection ratio 100-mVPP, 1-kHz sinusoidal signal on AVDD, differential input selected, 0-dB channel gain 102 dB
CMRR Common-mode rejection ratio Differential microphone input selected, 0-dB channel gain, 100-mVPP, 1-kHz signal on both pins and measure level at output 60 dB
MICROPHONE BIAS
MICBIAS noise BW = 20 Hz to 20 kHz, A-weighted, 1-μF capacitor between MICBIAS and AVSS 1.6 µVRMS
MICBIAS voltage MICBIAS programmed to VREF and VREF programmed to either 2.75 V, 2.5 V, or 1.375 V VREF V
MICBIAS programmed to VREF × 1.096 and VREF programmed to either 2.75 V, 2.5 V, or 1.375 V VREF × 1.096
Bypass to AVDD with 20-mA load AVDD – 0.2
MICBIAS current drive MICBIAS voltage ≥ 2.5 V 20 mA
MICBIAS voltage < 2.5 V 10
MICBIAS load regulation MICBIAS programmed to either VREF or VREF × 1.096, measured up to max load 0.1 0.6 1.8 %
MICBIAS over current protection threshold 30 mA
DIGITAL I/O
VIL Low-level digital input logic voltage threshold All digital pins except INxP_GPIx, SDA and SCL, IOVDD 1.8-V operation –0.3 0.35 × IOVDD V
All digital pins except INxP_GPIx, SDA and SCL, IOVDD 3.3-V operation –0.3 0.8
VIH High-level digital input logic voltage threshold All digital pins except INxP_GPIx, SDA and SCL, IOVDD 1.8-V operation 0.65 × IOVDD IOVDD + 0.3 V
All digital pins except INxP_GPIx, SDA and SCL, IOVDD 3.3-V operation 2 IOVDD + 0.3
VOL Low-level digital output voltage All digital pins except INxM_GPOx, SDA and SCL, IOL = –2 mA, IOVDD 1.8-V operation 0.45 V
All digital pins except INxM_GPOx, SDA and SCL, IOL = –2 mA, IOVDD 3.3-V operation 0.4
VOH High-level digital output voltage All digital pins except INxM_GPOx, SDA and SCL, IOH = 2 mA, IOVDD 1.8-V operation IOVDD – 0.45 V
All digital pins except INxM_GPOx, SDA and SCL, IOH = 2 mA, IOVDD 3.3-V operation 2.4
VIL(I2C) Low-level digital input logic voltage threshold SDA and SCL –0.5 0.3 x IOVDD V
VIH(I2C) High-level digital input logic voltage threshold SDA and SCL 0.7 x IOVDD IOVDD + 0.5 V
VOL1(I2C) Low-level digital output voltage SDA, IOL(I2C) = –3 mA, IOVDD > 2 V 0.4 V
VOL2(I2C) Low-level digital output voltage SDA, IOL(I2C) = –2 mA, IOVDD ≤ 2 V 0.2 x IOVDD V
IOL(I2C) Low-level digital output current SDA, VOL(I2C) = 0.4 V, standard-mode or fast-mode 3 mA
SDA, VOL(I2C) = 0.4 V, fast-mode plus 20
IIH Input logic-high leakage for digital inputs All digital pins except INxP_GPIx pins, input = IOVDD –5 0.1 5 µA
IIL Input logic-low leakage for digital inputs All digital pins except INxP_GPIx pins, input = 0 V –5 0.1 5 µA
VIL(GPIx) Low-level digital input logic voltage threshold All INxP_GPIx digital pins, AVDD 1.8-V operation –0.3 0.35 × AVDD V
All INxP_GPIx digital pins, AVDD 3.3-V operation –0.3 0.8
VIH(GPIx) High-level digital input logic voltage threshold All INxP_GPIx digital pins, AVDD 1.8-V operation 0.65 × AVDD AVDD + 0.3 V
All INxP_GPIx digital pins, AVDD 3.3-V operation 2 AVDD + 0.3
VOL(GPOx) Low-level digital output voltage All INxM_GPOx digital pins, IOL = –2 mA, AVDD 1.8-V operation 0.45 V
All INxM_GPOx digital pins, IOL = –2 mA, AVDD 3.3-V operation 0.4
VOH(GPOx) High-level digital output voltage All INxM_GPOx digital pins, IOH = 2 mA, AVDD 1.8-V operation AVDD – 0.45 V
All INxM_GPOx digital pins, IOH = 2 mA, AVDD 3.3-V operation 2.4
IIH(GPIx) Input logic-high leakage for digital inputs All INxP_GPIx digital pins, input = AVDD –5 0.1 5 µA
IIL(GPIx) Input logic-high leakage for digital inputs All INxP_GPIx digital pins, input = 0 V –5 0.1 5 µA
CIN Input capacitance for digital inputs All digital pins 5 pF
RPD Pulldown resistance for digital I/O pins when asserted on 20 kΩ
TYPICAL SUPPLY CURRENT CONSUMPTION
IAVDD Current consumption in hardware shutdown mode SHDNZ = 0, AVDD = 3.3 V, internal AREG 0.5 µA
IAVDD SHDNZ = 0, AVDD = 1.8 V, external AREG supply (AREG shorted to AVDD) 0.5
IIOVDD SHDNZ = 0, all external clocks stopped, IOVDD = 3.3 V 0.1
IIOVDD SHDNZ = 0, all external clocks stopped, IOVDD = 1.8 V 0.1
IAVDD Current consumption in sleep mode (software shutdown mode) All external clocks stopped, AVDD = 3.3 V, internal AREG 5 µA
IAVDD All external clocks stopped, AVDD = 1.8 V, external AREG supply (AREG shorted to AVDD) 5
IIOVDD All external clocks stopped, IOVDD = 3.3 V 0.1
IIOVDD All external clocks stopped, IOVDD = 1.8 V 0.1
IAVDD Current consumption with ADC 2-channel operating at fS 48-kHz, PLL off, BCLK = 512 × fS and DRE disable AVDD = 3.3 V, internal AREG 11.3 mA
IAVDD AVDD = 1.8 V, external AREG supply (AREG shorted to AVDD) 10.7
IIOVDD IOVDD = 3.3 V 0.1
IIOVDD IOVDD = 1.8 V 0.05
IAVDD Current consumption with ADC 4-channel operating at fS 16-kHz, PLL on, BCLK = 256 × fS and DRE disable AVDD = 3.3 V, internal AREG 19.7 mA
IAVDD AVDD = 1.8 V, external AREG supply (AREG shorted to AVDD) 18.6
IIOVDD IOVDD = 3.3 V 0.05
IIOVDD IOVDD = 1.8 V 0.02
IAVDD Current consumption with ADC 4-channel operating at fS 48-kHz, PLL on, BCLK = 256 × fS and DRE disable AVDD = 3.3 V, internal AREG 21.3 mA
IAVDD AVDD = 1.8 V, external AREG supply (AREG shorted to AVDD) 20.2
IIOVDD IOVDD = 3.3 V 0.1
IIOVDD IOVDD = 1.8 V 0.05
IAVDD Current consumption with ADC 4-channel operating at fS 48-kHz, PLL on, BCLK = 256 × fS and DRE enable  AVDD = 3.3 V, internal AREG 23.6 mA
IAVDD AVDD = 1.8 V, external AREG supply (AREG shorted to AVDD) 22.3
IIOVDD IOVDD = 3.3 V 0.1
IIOVDD IOVDD = 1.8 V 0.05
(1) Ratio of output level with 1-kHz full-scale sine-wave input, to the output level with the AC signal input shorted to ground, measured A-weighted over a 20-Hz to 20-kHz bandwidth using an audio analyzer.
(2) All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may result in higher THD and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter removes out-of-band noise, which, although not audible, may affect dynamic specification values.
(3) For best distortion performance, use input AC-coupling capacitors with low-voltage-coefficient.
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