SLASF35A January   2024  – March 2025 TAC5312-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
    9. 5.9  Switching Characteristics: SPI
    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
    15. 5.15 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  Input Channel Configuration
      4. 6.3.4  Reference Voltage
      5. 6.3.5  Microphone Bias
      6. 6.3.6  Digital PDM Microphone Record Channel
      7. 6.3.7  Signal-Chain Processing
        1. 6.3.7.1 ADC Signal-Chain
          1. 6.3.7.1.1  6 to 4 Input Select Multiplexer (6:4 MUX)
          2. 6.3.7.1.2  Programmable Channel Gain and Digital Volume Control
          3. 6.3.7.1.3  Programmable Channel Gain Calibration
          4. 6.3.7.1.4  Programmable Channel Phase Calibration
          5. 6.3.7.1.5  Programmable Digital High-Pass Filter
          6. 6.3.7.1.6  Programmable Digital Biquad Filters
          7. 6.3.7.1.7  Programmable Channel Summer and Digital Mixer
          8. 6.3.7.1.8  Configurable Digital Decimation Filters
            1. 6.3.7.1.8.1 Linear-phase filters
              1. 6.3.7.1.8.1.1 Sampling Rate: 8kHz or 7.35kHz
              2. 6.3.7.1.8.1.2 Sampling Rate: 16kHz or 14.7kHz
              3. 6.3.7.1.8.1.3 Sampling Rate: 24kHz or 22.05kHz
              4. 6.3.7.1.8.1.4 Sampling Rate: 32kHz or 29.4kHz
              5. 6.3.7.1.8.1.5 Sampling Rate: 48kHz or 44.1kHz
              6. 6.3.7.1.8.1.6 Sampling Rate: 96kHz or 88.2kHz
              7. 6.3.7.1.8.1.7 Sampling Rate: 192kHz or 176.4kHz
              8. 6.3.7.1.8.1.8 Sampling Rate: 384kHz or 352.8kHz
              9. 6.3.7.1.8.1.9 Sampling Rate: 768kHz or 705.6kHz
            2. 6.3.7.1.8.2 Low-latency Filters
              1. 6.3.7.1.8.2.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.1.8.2.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.1.8.2.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.1.8.2.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.1.8.2.5 Sampling Rate: 192kHz or 176.4kHz
            3. 6.3.7.1.8.3 Ultra-Low-Latency Filters
              1. 6.3.7.1.8.3.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.1.8.3.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.1.8.3.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.1.8.3.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.1.8.3.5 Sampling Rate: 192kHz or 176.4kHz
          9. 6.3.7.1.9  Automatic Gain Controller (AGC)
          10. 6.3.7.1.10 Voice Activity Detection (VAD)
          11. 6.3.7.1.11 Ultrasonic Activity Detection (UAD)
        2. 6.3.7.2 DAC Signal-Chain
          1. 6.3.7.2.1 Programmable Channel Gain and Digital Volume Control
          2. 6.3.7.2.2 Programmable Channel Gain Calibration
          3. 6.3.7.2.3 Programmable Digital High-Pass Filter
          4. 6.3.7.2.4 Programmable Digital Biquad Filters
          5. 6.3.7.2.5 Configurable Digital Interpolation Filters
            1. 6.3.7.2.5.1 Linear-phase filters
              1. 6.3.7.2.5.1.1 Sampling Rate: 8kHz or 7.35kHz
              2. 6.3.7.2.5.1.2 Sampling Rate: 16kHz or 14.7kHz
              3. 6.3.7.2.5.1.3 Sampling Rate: 24kHz or 22.05kHz
              4. 6.3.7.2.5.1.4 Sampling Rate: 32kHz or 29.4kHz
              5. 6.3.7.2.5.1.5 Sampling Rate: 48kHz or 44.1kHz
              6. 6.3.7.2.5.1.6 Sampling Rate: 96kHz or 88.2kHz
              7. 6.3.7.2.5.1.7 Sampling Rate: 192kHz or 176.4kHz
              8. 6.3.7.2.5.1.8 Sampling Rate: 384kHz or 352.8kHz
              9. 6.3.7.2.5.1.9 Sampling Rate 768kHz or 705.6kHz
            2. 6.3.7.2.5.2 Low-latency Filters
              1. 6.3.7.2.5.2.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.2.5.2.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.2.5.2.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.2.5.2.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.2.5.2.5 Sampling Rate: 192kHz or 176.4kHz
            3. 6.3.7.2.5.3 Ultra-Low-Latency Filters
              1. 6.3.7.2.5.3.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.2.5.3.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.2.5.3.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.2.5.3.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.2.5.3.5 Sampling Rate 192kHz or 176.4kHz
          6. 6.3.7.2.6 Programmable Digital Mixer
      8. 6.3.8  Interrupts, Status, and Digital I/O Pin Multiplexing
      9. 6.3.9  Input DC Fault Diagnostics
      10. 6.3.10 Power Tune Mode
    4. 6.4 Device Functional Modes
      1. 6.4.1 Sleep Mode or Software Shutdown
      2. 6.4.2 Active Mode
      3. 6.4.3 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 TAC5312-Q1_B0_P0 Registers
      2. 7.1.2 TAC5312-Q1_B0_P1 Registers
      3. 7.1.3 TAC5312-Q1_B0_P3 Registers
    2. 7.2 Programmable Coefficient Registers
      1. 7.2.1  Programmable Coefficient Registers: Page 8
      2. 7.2.2  Programmable Coefficient Registers: Page 9
      3. 7.2.3  Programmable Coefficient Registers: Page 10
      4. 7.2.4  Programmable Coefficient Registers: Page 11
      5. 7.2.5  Programmable Coefficient Registers: Page 15
      6. 7.2.6  Programmable Coefficient Registers: Page 16
      7. 7.2.7  Programmable Coefficient Registers: Page 17
      8. 7.2.8  Programmable Coefficient Registers: Page 18
      9. 7.2.9  Programmable Coefficient Registers: Page 19
      10. 7.2.10 Programmable Coefficient Registers: Page 25
      11. 7.2.11 Programmable Coefficient Registers: Page 26
      12. 7.2.12 Programmable Coefficient Registers: Page 27
      13. 7.2.13 Programmable Coefficient Registers: Page 28
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Application
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
      4. 8.2.4 Typical Characteristics
      5. 8.2.5 Example Device Register Configuration Script for EVM Setup
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 IOVDD_IO_MODE for 1.8V and 1.2V Operation
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

5.5 Electrical Characteristics

At TA = 25°C, AVDD = 3.3V, IOVDD = 3.3V, BSTVDD = 3.3V, HVDD = 11V (for external HVDD case), fIN = 1kHz sinusoidal signal, fS = 48kHz, 32-bit audio data, BCLK = 256 x fS, TDM target mode, PLL on, channel gain = 0dB, linear phase decimation/interpolation filters, AC-coupled differential input with VCM = 7.2V, MICBIAS programmed voltage = 8V, 1200Ω/600Ω line-out load in differential/ single-ended configuration or 32Ω/16Ω receiver/headphone load as applicable and other default configurations; measured filter free with an audio precision with a 20Hz to a 20kHz un-weighted bandwidth, unless otherwise noted
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
ADC PERFORMANCE FOR LINE/MIC INPUT RECORDING
Differential input full-scale DC signal voltage AC-coupled input, input fault diagnostic not supported 10 VRMS
DC-coupled input, DC common-mode voltage INxP = INxM = 7.2 V, input fault diagnostic supported
Single-ended input full-scale DC signal voltage AC-coupled input, input fault diagnostic not supported 5 VRMS
DC-coupled input, DC common-mode voltage INxP = INxM = 7.2 V, input fault diagnostic supported
SNR Signal-to-noise ratio, A-weighted(1)(2)
IN1x differential AC-coupled input and AC signal
shorted to ground, 0dB channel gain

 95 103 dB

IN1x differential DC-coupled input and AC signal
shorted to ground, 0dB channel gain

 103
SNR Signal-to-noise ratio, A-weighted(1)(2)
IN1x differential AC-coupled input and AC signal
shorted to ground, 12dB channel gain

 99 dB
Signal-to-noise ratio, A-weighted(1)(2)
IN1x differential DC-coupled input and AC signal
shorted to ground, 12dB channel gain

100
SNR Signal-to-noise ratio, A-weighted(1)(2) Wideband Mode(3): IN1x differential AC-coupled or DC-coupled input and AC signal shorted to ground, 0dB channel gain (Integrated till 20kHz) 101 dB
Signal-to-noise ratio Wideband Mode(3): IN1x differential AC-coupled or DC-coupled input and AC signal shorted to ground, 0dB channel gain (Integrated till 85kHz) 90
SNR Signal-to-noise ratio, A-weighted(1)(2) Power Tune Mode(4): IN1x differential AC-coupled input and AC signal shorted to ground, 0dB channel gain 101 dB
Power Tune Mode(4): IN1x differential DC-coupled input and AC signal shorted to ground, 0dB channel gain 101
SNR Signal-to-noise ratio, A-weighted(1)(2)
IN1x single-ended AC-coupled input and AC
signal shorted to ground, 0dB channel gain

 102 dB
DR Dynamic range, A-weighted(2)
IN1x differential AC-coupled input and –60dBFS
AC signal input, 0dB channel gain

 95 104 dB

IN1x differential DC-coupled input and –60dBFS
AC signal input, 0dB channel gain

 104
DR Dynamic range, A-weighted(2)
IN1x differential AC-coupled input and –72dBFS
AC signal input, 12dB channel gain

99 dB

IN1x differential DC-coupled input and –72dBFS
AC signal input, 12dB channel gain

 99 dB
DR Dynamic range, A-weighted(2) Power Tune Mode(4): IN1x differential AC-coupled input and –60dBFS AC signal input, 0dB channel gain 101 dB
Power Tune Mode(4): IN1x differential DC-coupled input and –60dBFS AC signal input, 0dB channel gain 101
DR Dynamic range, A-weighted(2)
IN1x single-ended AC-coupled input and and –
60dBFS AC signal input, 0dB channel gain

 102 dB
THD+N Total harmonic distortion(2) IN1x differential AC-coupled input and –13dBFS AC signal input, 12dB channel gain   –95 dB
IN1x differential DC-coupled input and –13dBFS AC signal input, 12dB channel gain   –95
IN1x differential AC-coupled input and –1dBFS AC signal input, 0dB channel gain   –97 –80
IN1x differential DC-coupled input and –1dBFS AC signal input, 0dB channel gain   –94
ADC OTHER PARAMETERS
AC Input impedance Input pins INxP or INxM 34 kΩ
Digital volume control range Programmable 0.5dB steps –80 47 dB
Input Signal Bandwidth Upto 192KSPS FS Rate 0.46 FS
>192KSPS 85 kHz
Output data sample rate Programmable 4 768 kHz
Output data sample word length Programmable 16 32 Bits
Digital high-pass filter cutoff frequency First-order IIR filter with programmable coefficients, –3dB point (default setting) 1 Hz
Interchannel isolation –1dBFS AC signal line-in differential input to non measurement channel –134 dB
Interchannel gain mismatch –6dBFS AC signal line-in differential input, 1kHz sinusoidal signal, 0dB channel gain ±0.1 dB
Interchannel phase mismatch –6dBFS AC signal line-in differential input, 1kHz sinusoidal signal ±0.01 Degrees
PSRR Power-supply rejection ratio 100mVPP, 1kHz sinusoidal signal on AVDD, differential input, 0dB channel gain 92 dB
CMRR Common-mode rejection ratio
Differential DC-coupled input, 0dB channel gain,
–6dBFS AC input, 1kHz signal on both pins and
measured level at output


 60 dB
MICROPHONE BIAS
MICBIAS noise BW = 20 Hz to 20 kHz, A-weighted, 1µF capacitor between MICBIAS and AVSS 20 µVRMS
MICBIAS voltage Programmable 0.5V steps 3 10 V
MICBIAS current drive MICBIAS voltage 10V 30 mA
MICBIAS load regulation MICBIAS voltage 10V, measured up to maximum load 0 1 %
MICBIAS over current protection threshold MICBIAS voltage 10V 32 mA
INPUT DIAGNOSTICS
Fault monitoring repetition rate Programmable, DC-coupled input 1 4 8 ms
Fault response time Fault monitoring repetition rate 4ms, DC-coupled input 16 ms
Threshold voltage for (INxx – AVSS) input shorted to ground Programmable 60mV steps, DC-coupled input 0 900 mV
Threshold voltage for (INxP – INxM) input shorted together Programmable 30mV steps, DC-coupled input 0 450 mV
Threshold voltage for (MICBIAS – INxx) input shorted to MICBIAS Programmable 30mV steps, DC-coupled input 0 450 mV
Threshold voltage for (VBAT – INxx) input shorted to VBAT_IN Programmable 30mV steps, DC-coupled input 0 450 mV
DAC PERFORMANCE FOR LINE-OUT/HEADPHONE PLAYBACK
Full Scale Output Voltage Differential output between OUTxP and OUTxM 2 VRMS
Single-ended output 1
Pseudo-differential output between OUTxP and OUTxM 1
SNR Signal-to-noise ratio, A-weighted(1)(2) Differential output, 0dBFS Signal 106 114 dB
Single-ended output, 0dBFS Signal 107
Pseudo-differential output, 0dBFS Signal 105
Differential output, 0dBFS Signal, Power Tune Mode(4) 114
Single-ended output, 0dBFS Signal, Power Tune Mode(4) 103
Pseudo-differential output, 0dBFS Signal, Power Tune Mode(4) 105
DR Dynamic range, A-weighted(2) Differential output, –60dBFS Signal 106 114 dB
Single-ended output, –60dBFS Signal 107
Pseudo-differential output, –60dBFS Signal 106
Differential output, –60dBFS Signal, Power Tune Mode(4) 114
Single-ended output, –60dBFS Signal, Power Tune Mode(4) 104
Pseudo-differential output, –60dBFS Signal, Power Tune Mode(4) 105
THD+N Total harmonic distortion(2)
Differential output, –1dBFS signal

 –96 –80 dB

Single-ended output, –1dBFS signal

 –94

Psuedo-differential output, –1dBFS signal

 –93
Headphone load range Single-ended 4 16 600 Ω
Line-out load range Single-ended 600 Ω
Headphone/Line-out Cap Load Single-ended 0 2 nF
DAC OTHER PARAMETERS
Output Offset 0 Input, Differential line-output ±0.5 mV
Output Common Mode Common Mode Level for OUTxP and OUTxM 1.65 V
Common Mode Error DC Error in Common Mode Voltage ±20 mV
Output Signal Bandwidth Upto 192KSPS FS Rate 0.46 FS
>192KSPS 85 kHz
Input data sample rate Programmable 4 768 kHz
Input data sample word length Programmable 16 32 Bits
Digital high-pass filter cutoff frequency First-order IIR filter with programmable coefficients, –3dB point (default setting) 1 Hz
Interchannel isolation
Differential output, –1dBFS input signal on
nonmeasurement channel

–120 dB
Interchannel gain mismatch
Differential output, –6dBFS Input signal

 ±0.1 dB
Interchannel phase mismatch
Differential output, –6dBFS Input signal

 ±0.01 Degrees
PSRR Power-supply rejection ratio 100mVPP, 1kHz sinusoidal signal on AVDD, differential output, 0dB channel gain 110 dB
Mute Attenuation –130 dB
Pout Output Power Delivery Single-ended/Pseudo-differential headphone RL=16Ω, THD+N<0.1% 62.5 mW
DIGITAL I/O
VIL Low-level digital input logic voltage threshold All digital pins except GPI1A, GPI2A, ADDRA, SDA and SCL, IOVDD 1.8V or 1.2V operation –0.3 0.35 x IOVDD V
All digital pins except GPI1A, GPI2A, ADDRA, SDA and SCL, IOVDD 3.3V operation –0.3 0.8
VIH High-level digital input logic voltage threshold All digital pins except GPI1A, GPI2A, ADDRA, SDA and SCL, IOVDD 1.8V or 1.2V operation 0.65 x IOVDD IOVDD + 0.3 V
All digital pins except GPI1A, GPI2A, ADDRA, SDA and SCL, IOVDD 3.3V operation 2 IOVDD + 0.3
VOL Low-level digital output voltage All digital pins except GPO1A, SDA and SCL, IOL = –2mA, IOVDD 1.8V or 1.2V operation 0.45 V
All digital pins except GPO1A, SDA and SCL, IOL = –2mA, IOVDD 3.3V operation 0.4
VOH High-level digital output voltage All digital pins except GPO1A, SDA and SCL, IOH = 2mA, IOVDD 1.8V or 1.2V operation IOVDD – 0.45 V
All digital pins except GPO1A, SDA and SCL, IOH = 2mA, IOVDD 3.3V operation 2.4
VIL(AVDD) Low-level digital input logic voltage threshold For pins GPI1A, GPI2A, ADDRA –0.3 0.35 x AVDD V
VIH(AVDD) High-level digital input logic voltage threshold For pins GPI1A, GPI2A, ADDRA 0.65 x AVDD AVDD + 0.3 V
VOL(AVDD) Low-level digital output voltage For GPO1A pin 0.45 V
VOH(AVDD) High-level digital output voltage For GPO1A pin AVDD – 0.45 V
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) = –3mA, IOVDD 3.3V operation 0.4 V
VOL2(I2C) Low-level digital output voltage SDA, IOL(I2C) = –2mA, IOVDD 1.8V or 1.2V operation 0.2 x IOVDD V
IOL(I2C) Low-level digital output current SDA, VOL(I2C) = 0.4V, standard-mode or fast-mode 3 mA
SDA, VOL(I2C) = 0.4V, fast-mode plus 20
IIL Input logic-low leakage for digital inputs All digital pins, input = 0V –5 0.1 5 µA
IIH Input logic-high leakage for digital inputs All digital pins, input = IOVDD –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 sleep mode (software shutdown mode) All device external clocks stopped 9 µA
IBSTVDD, or IHVDD 0.01
IIOVDD 1
IAVDD Current consumption with MICBIAS ON, MICBIAS voltage 10 V, 30 mA load, ADC off fS = 48kHz, BCLK = 256 × fS 1.6 mA
IBSTVDD 16.6
IIOVDD 0.02
IAVDD Current consumption with ADC 2-channel operation with MICBIAS off, PLL on fS = 16kHz, BCLK = 512 × fS 8.7 mA
IIOVDD 0.1 mA
IAVDD Current consumption with ADC 2-channel operation with MICBIAS on, PLL off fS = 48kHz, BCLK = 512 × fS 6.2 mA
IBSTVDD, or IHVDD 16 mA
IIOVDD 0.3 mA
IAVDD Current consumption with DAC to HP 2-channel operation with MICBIAS off, PLL on fS = 16kHz, BCLK = 512 × fS 17.9 mA
IIOVDD 0.02 mA
IAVDD Current consumption with DAC to HP 2-channel operation with MICBIAS off, PLL off fS = 48kHz, BCLK = 512 × fS 15.2 mA
IIOVDD 0.04 mA
IAVDD Current consumption with ADC 2-channel operation and DAC to HP 2-channel operation with MICBIAS off, PLL off fS = 48kHz, BCLK = 512 × fS 27.9 mA
IBSTVDD, or IHVDD 16 mA
IIOVDD 0.3 mA
IAVDD Current consumption with ADC 2-channel operation, MICBIAS off, PLL off, Power tune mode(4) fS = 48kHz, BCLK = 512 × fS 5.3 mA
IIOVDD 0.3 mA
IAVDD Current consumption with DAC to Line-out 2-channel single-ended operation, MICBIAS off, PLL off, Power tune mode(4) fS = 48kHz, BCLK = 512 × fS 9.2 mA
IIOVDD 0.04 mA
(1) Ratio of output level with 1kHz full-scale sine-wave input, to the output level with the AC signal input shorted to ground or no generator input signal, measured A-weighted over a 20Hz to 20kHz bandwidth using an audio analyzer.
(2) All performance measurements done with 20kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter can result in higher THD+N 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, can affect dynamic specification values.
(3) ADC_CHx_BW_MODE = 1'b1 for Wideband Mode
(4) PWR_TUNE_CFG0 = 0xD4, PWR_TUNE_CFG1 = 0x86 and PLL_DIS = 1'b1 for Power Tune Mode