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

5.5 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, 10-kΩ input impedance selection, 0-dB channel gain 100 104 dB
IN1 differential input selected and AC signal shorted to ground, 10-kΩ input impedance selection, 12-dB channel gain 100
DR Dynamic range, A-weighted(2) IN1 differential input selected and –60-dB full-scale AC signal input, 10-kΩ input impedance selection, 0-dB channel gain 104 dB
IN1 differential input selected and –72-dB full-scale AC signal input, 10-kΩ input impedance selection, 12-dB channel gain 101
THD+N Total harmonic distortion(2)(3) IN1 differential input selected and –1-dB full-scale AC signal input, 10-kΩ input impedance selection, 0-dB channel gain –95 –80 dB
IN1 differential input selected and –13-dB full-scale AC signal input, 10-kΩ input impedance selection, 12-dB channel gain –94
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, 10-kΩ input impedance selection, 0-dB channel gain 98 dB
DR Dynamic range, A-weighted(2) IN1 differential input selected and –60-dB full-scale AC signal input, 10-kΩ input impedance selection, 0-dB channel gain 99 dB
THD+N Total harmonic distortion(2)(3) IN1 differential input selected and –2-dB full-scale AC signal Input, 10-kΩ input impedance selection, 0 dB channel gain –90 dB
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 0.6 1.8 %
MICBIAS over current protection threshold 30 mA
DIGITAL I/O
VIL(SHDNZ) Low-level digital input logic voltage threshold SHDNZ pin –0.3 0.25 × IOVDD V
VIH(SHDNZ) High-level digital input logic voltage threshold SHDNZ pin 0.75 × IOVDD IOVDD + 0.3 V
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 and BCLK = 512 × fS 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 and BCLK = 256 × fS 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 and BCLK = 256 × fS 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
(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.