SLASF36A January   2024  – December 2024 TAC5311-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 Timing Diagrams
    15. 5.15 Typical Charactaristics
  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 Programmable Channel Gain and Digital Volume Control
          2. 6.3.7.1.2 Programmable Channel Gain Calibration
          3. 6.3.7.1.3 Programmable Channel Phase Calibration
          4. 6.3.7.1.4 Programmable Digital High-Pass Filter
          5. 6.3.7.1.5 Programmable Digital Biquad Filters
          6. 6.3.7.1.6 Programmable Channel Summer and Digital Mixer
          7. 6.3.7.1.7 Configurable Digital Decimation Filters
            1. 6.3.7.1.7.1 Linear-phase filters
              1. 6.3.7.1.7.1.1 Sampling Rate: 8kHz or 7.35kHz
              2. 6.3.7.1.7.1.2 Sampling Rate: 16kHz or 14.7kHz
              3. 6.3.7.1.7.1.3 Sampling Rate: 24kHz or 22.05kHz
              4. 6.3.7.1.7.1.4 Sampling Rate: 32kHz or 29.4kHz
              5. 6.3.7.1.7.1.5 Sampling Rate: 48kHz or 44.1kHz
              6. 6.3.7.1.7.1.6 Sampling Rate: 96kHz or 88.2kHz
              7. 6.3.7.1.7.1.7 Sampling Rate: 192kHz or 176.4kHz
              8. 6.3.7.1.7.1.8 Sampling Rate: 384kHz or 352.8kHz
              9. 6.3.7.1.7.1.9 Sampling Rate: 768kHz or 705.6kHz
            2. 6.3.7.1.7.2 Low-latency Filters
              1. 6.3.7.1.7.2.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.1.7.2.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.1.7.2.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.1.7.2.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.1.7.2.5 Sampling Rate: 192kHz or 176.4kHz
            3. 6.3.7.1.7.3 Ultra-Low-Latency Filters
              1. 6.3.7.1.7.3.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.1.7.3.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.1.7.3.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.1.7.3.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.1.7.3.5 Sampling Rate: 192kHz or 176.4kHz
        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 Programmable Digital Mixer
          6. 6.3.7.2.6 Configurable Digital Interpolation Filters
            1. 6.3.7.2.6.1 Linear-phase filters
              1. 6.3.7.2.6.1.1 Sampling Rate: 8kHz or 7.35kHz
              2. 6.3.7.2.6.1.2 Sampling Rate: 16kHz or 14.7kHz
              3. 6.3.7.2.6.1.3 Sampling Rate: 24kHz or 22.05kHz
              4. 6.3.7.2.6.1.4 Sampling Rate: 32kHz or 29.4kHz
              5. 6.3.7.2.6.1.5 Sampling Rate: 48kHz or 44.1kHz
              6. 6.3.7.2.6.1.6 Sampling Rate: 96kHz or 88.2kHz
              7. 6.3.7.2.6.1.7 Sampling Rate: 192kHz or 176.4kHz
            2. 6.3.7.2.6.2 Low-latency Filters
              1. 6.3.7.2.6.2.1 Sampling Rate: 24kHz or 22.05kHz
              2. 6.3.7.2.6.2.2 Sampling Rate: 32kHz or 29.4kHz
              3. 6.3.7.2.6.2.3 Sampling Rate: 48kHz or 44.1kHz
              4. 6.3.7.2.6.2.4 Sampling Rate: 96kHz or 88.2kHz
              5. 6.3.7.2.6.2.5 Sampling Rate: 192kHz or 176.4kHz
      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 Software Reset
      3. 6.4.3 Active Mode
    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 TAC5311-Q1_B0_P0 Registers
      2. 7.1.2 TAC5311-Q1_B0_P1 Registers
    2. 7.2 Programmable Coefficienct Registers
      1. 7.2.1  Programmable Coefficient Registers: Page 8
      2. 7.2.2  Programmable Coefficient Registers: Page 9
        1. 7.2.2.1 TAC5311-Q1_B0_P3 Registers
      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 Application Performance Plots
      5. 8.2.5 Example Device Register Configuration Scripts 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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
6.3.7.2.4 Programmable Digital Biquad Filters

The device supports up to 12 programmable digital biquad filters available for DAC signal chain limited to 3/channel. These highly efficient filters achieve the desired frequence response. The TAC5311-Q1 also supports on the fly programmable Biquad filters for two channel playback use case. In digital signal processing, a digital biquad filter is a second-order, recursive linear filter with two poles and two zeros. Equation 4 gives the transfer function of each biquad filter:

Equation 4. TAC5311-Q1

The frequency response for the biquad filter section with default coefficients is flat at a gain of 0 dB (all-pass filter). The host device can override the frequency response by programming the biquad coefficients to achieve the desired frequency response for a low-pass, high-pass, or any other desired frequency shaping. If biquad filtering is required, then the host device must write these coefficients values before powering up any ADC channels for recording. In two channel use case, the TAC5311-Q1 also supports on the fly programmable filters. In this case, Device uses two banks of filters for one channel with a switch bit to perform the switch from one filter bank to the other. As described in Table 6-42, these biquad filters can be allocated for each output channel based on the DAC_DSP_BQ_CFG[1:0] register setting of P0_R115. By setting DAC_DSP_BQ_CFG[1:0] to 2'b00, the biquad filtering for all playback channels are disabled and the host device can choose this setting if no additional filtering is required for the system application. See the TAC5x1x and TAC5x1x-Q1 Programmable Biquad Filter - Configuration and Applications application report for further details.

Table 6-42 Biquad Filter Allocation to the Record Output Channel
PROGRAMMABLE BIQUAD FILTERRECORD OUTPUT CHANNEL ALLOCATION USING P0_R115_D[3:2] REGISTER SETTING
DAC_DSP_BQ_CFG[1:0] = 2'b01
(1 Biquad per Channel)		DAC_DSP_BQ_CFG[1:0] = 2'b10 (Default)
(2 Biquads per Channel)		DAC_DSP_BQ_CFG[1:0] = 2'b11
(3 Biquads per Channel)
Biquad filter 1Allocated to output channel 1Allocated to output channel 1Allocated to output channel 1
Biquad filter 2Allocated to output channel 2Allocated to output channel 2Allocated to output channel 2
Biquad filter 3Allocated to output channel 3Allocated to output channel 3Allocated to output channel 3
Biquad filter 4Allocated to output channel 4Allocated to output channel 4Allocated to output channel 4
Biquad filter 5 Not usedAllocated to output channel 1Allocated to output channel 1
Biquad filter 6Not usedAllocated to output channel 2Allocated to output channel 2
Biquad filter 7 Not usedAllocated to output channel 3Allocated to output channel 3
Biquad filter 8Not usedAllocated to output channel 4Allocated to output channel 4
Biquad filter 9 Not used Not usedAllocated to output channel 1
Biquad filter 10 Not usedNot usedAllocated to output channel 2
Biquad filter 11 Not used Not usedAllocated to output channel 3
Biquad filter 12 Not used Not usedAllocated to output channel 4

Table 6-43 shows the biquad filter coefficients mapping to the register space.

Table 6-43 Biquad Filter Coefficients Register Mapping
PROGRAMMABLE BIQUAD FILTERBIQUAD FILTER COEFFICIENTS REGISTER MAPPINGPROGRAMMABLE BIQUAD FILTERBIQUAD FILTER COEFFICIENTS REGISTER MAPPING
Biquad filter 1P16_R8-R27Biquad filter 7P17_R8-R27
Biquad filter 2P16_R28-R47Biquad filter 8P17_R28-R47
Biquad filter 3P16_R48-R67Biquad filter 9P17_R48-R67
Biquad filter 4P16_R68-R87Biquad filter 10P17_R68-R87
Biquad filter 5P16_R88-R107Biquad filter 11P17_R88-R107
Biquad filter 6P16_R108-R127Biquad filter 12P17_R108-R127