SLES273B April   2013  ā€“ April 2015 TAS5558

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Dynamic Performance
    7. 6.7  SRC Performance
    8. 6.8  Timing I2C Serial Control Port Operation
    9. 6.9  Reset Timing (RESET)
    10. 6.10 Power-Down (PDN) Timing
    11. 6.11 Back-End Error (BKND_ERR)
    12. 6.12 Mute Timing (MUTE)
    13. 6.13 Headphone Select (HP_SEL)
    14. 6.14 Switching Characteristics - Clock Signals
    15. 6.15 Switching Characteristics - Serial Audio Port
    16. 6.16 Volume Control
    17. 6.17 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Serial Audio Interface Control and Timing
        1. 7.3.1.1 Input I2S Timing
        2. 7.3.1.2 Left-Justified Timing
        3. 7.3.1.3 Right-Justified Timing
      2. 7.3.2 OUTPUT Serial Audio Output
      3. 7.3.3 I2S Master Mode
      4. 7.3.4 LRCKO and SCLKO
      5. 7.3.5 PWM Features
        1. 7.3.5.1 DC Blocking (High-Pass Filter Enable/Disable)
        2. 7.3.5.2 AM Interference Avoidance
      6. 7.3.6 TAS5558 Controls and Status
        1. 7.3.6.1 I2C Status Registers
          1. 7.3.6.1.1 General Status Register (0x01)
          2. 7.3.6.1.2 Error Status Register (0x02)
        2. 7.3.6.2 TAS5558 Pin Controls
          1. 7.3.6.2.1 Reset (RESET)
          2. 7.3.6.2.2 Power Down (PDN)
          3. 7.3.6.2.3 Back-End Error (BKND_ERR)
            1. 7.3.6.2.3.1 BKND_ERR and VALID
          4. 7.3.6.2.4 Speaker/Headphone Selector (HP_SEL)
          5. 7.3.6.2.5 Mute (MUTE)
          6. 7.3.6.2.6 Power-Supply Volume Control (PSVC)
    4. 7.4 Device Functional Modes
      1. 7.4.1  Power Supply
      2. 7.4.2  Clock, PLL, and Serial Data Interface
      3. 7.4.3  Serial Audio Interface
      4. 7.4.4  I 2C Serial-Control Interface
      5. 7.4.5  Device Control
      6. 7.4.6  Energy Manager
      7. 7.4.7  Digital Audio Processor (DAP)
        1. 7.4.7.1 TAS5558 Audio-Processing Configurations
        2. 7.4.7.2 TAS5558 Audio-Processing Feature Sets
      8. 7.4.8  Pulse Width Modulation Schemes
      9. 7.4.9  TAS5558 DAP Architecture Diagrams
      10. 7.4.10 Iā€Š2C Coefficient Number Formats
        1. 7.4.10.1 Digital Audio Processor (DAP) Arithmetic Unit
        2. 7.4.10.2 28-Bit 5.23 Number Format
        3. 7.4.10.3 TAS5558 Audio Processing
      11. 7.4.11 Input Crossbar Mixer
      12. 7.4.12 Biquad Filters
      13. 7.4.13 Bass and Treble Controls
      14. 7.4.14 Volume, Automute, and Mute
      15. 7.4.15 Loudness Compensation
        1. 7.4.15.1 Loudness Example
      16. 7.4.16 Dynamic Range Control (DRC)
        1. 7.4.16.1 DRC Implementation
        2. 7.4.16.2 Compression/Expansion Coefficient Computation Engine Parameters
          1. 7.4.16.2.1 Threshold Parameter Computation
          2. 7.4.16.2.2 Offset Parameter Computation
          3. 7.4.16.2.3 Slope Parameter Computation
      17. 7.4.17 THD Manager
      18. 7.4.18 Downmix Algorithm and I2S Out
      19. 7.4.19 Stereo Downmixes/(or Fold-Downs)
        1. 7.4.19.1 Left Total/Right Total (Lt/Rt)
        2. 7.4.19.2 Left Only/Right Only (Lo/Ro)
      20. 7.4.20 Output Mixer
      21. 7.4.21 Device Configuration Controls
        1. 7.4.21.1 Channel Configuration
        2. 7.4.21.2 Headphone Configuration Registers
        3. 7.4.21.3 Audio System Configurations
          1. 7.4.21.3.1 Using Line Outputs in 6-Channel Configurations
        4. 7.4.21.4 Recovery from Clock Error
        5. 7.4.21.5 Power-Supply Volume-Control Enable
        6. 7.4.21.6 Volume and Mute Update Rate
        7. 7.4.21.7 Modulation Index Limit
      22. 7.4.22 Master Clock and Serial Data Rate Controls
        1. 7.4.22.1 192kHz Native Processing Mode
        2. 7.4.22.2 Supported MCLK Frequencies on the TAS5558
        3. 7.4.22.3 PLL Operation
        4. 7.4.22.4 MCLK Ratio Auto Detection
      23. 7.4.23 Bank Controls (ASRC Bypass only)
        1. 7.4.23.1 Manual Bank Selection
        2. 7.4.23.2 Automatic Bank Selection
          1. 7.4.23.2.1 Coefficient Write Operations While Automatic Bank Switch Is Enabled
        3. 7.4.23.3 Bank Set
        4. 7.4.23.4 Bank-Switch Timeline
        5. 7.4.23.5 Bank-Switching Example 1
    5. 7.5 Programming
      1. 7.5.1 I2C Serial-Control Interface (Slave Addresses 0x36)
        1. 7.5.1.1 General I2C Operation
        2. 7.5.1.2 Single- and Multiple-Byte Transfers
        3. 7.5.1.3 Single-Byte Write
        4. 7.5.1.4 Multiple-Byte Write
        5. 7.5.1.5 Incremental Multiple-Byte Write
        6. 7.5.1.6 Single-Byte Read
        7. 7.5.1.7 Multiple-Byte Read
    6. 7.6 Register Maps
      1. 7.6.1 Serial-Control I2C Register Summary
      2. 7.6.2 Serial-Control Interface Register Definitions
        1. 7.6.2.1  Clock Control Register (0x00)
        2. 7.6.2.2  General Status Register 0 (0x01)
        3. 7.6.2.3  Error Status Register (0x02)
        4. 7.6.2.4  System Control Register 1 (0x03)
        5. 7.6.2.5  System Control Register 2 (0x04)
        6. 7.6.2.6  Channel Configuration Control Registers (0x05-0x0C)
        7. 7.6.2.7  Headphone Configuration Control Register (0x0D)
        8. 7.6.2.8  Serial Data Interface Control Register (0x0E)
        9. 7.6.2.9  Soft Mute Register (0x0F)
        10. 7.6.2.10 Energy Manager Status Register (0x10)
        11. 7.6.2.11 Automute Control Register (0x14)
        12. 7.6.2.12 Output Automute PWM Threshold and Back-End Reset Period Register (0x15)
        13. 7.6.2.13 Modulation Index Limit Register (0x16, 0x17, 0x18, 0x19)
        14. 7.6.2.14 AD Mode - 8 Interchannel Channel Delay and Global Offset Registers (0x1B to 0x23)
        15. 7.6.2.15 Special Low Z and Mid Z Ramp/Stop Period (0x24)
        16. 7.6.2.16 PWM and EMO Control Register (0x25)
        17. 7.6.2.17 Individual Channel Shutdown (0x27)
        18. 7.6.2.18 Input Mux Registers (0x30, 0x31, 0x32, 0x33)
        19. 7.6.2.19 PWM Mux Registers (0x34, 0x35, 0x36, 0x37)
        20. 7.6.2.20 BD Mode and Ternary - 8 Interchannel Channel Delay (0x38 to 0x3F)
        21. 7.6.2.21 Bank-Switching Command Register (0x40) (TAS5558 + ASRC Bypass)
        22. 7.6.2.22 Input Mixer Registers, Channels 1-8 (0x41-0x48)
        23. 7.6.2.23 Bass Mixer Registers (0x49-0x50)
        24. 7.6.2.24 Biquad Filter Register (0x51-0x88)
        25. 7.6.2.25 Bass and Treble Register, Channels 1-8 (0x89-0x90)
        26. 7.6.2.26 Loudness Registers (0x91-0x95)
        27. 7.6.2.27 DRC1 Control Register CH1-7 (0x96) - Write
        28. 7.6.2.28 DRC2 Control Register CH8 (0x97) - Write Register
        29. 7.6.2.29 DRC1 Data Registers (0x98-0x9C)
        30. 7.6.2.30 DRC2 Data Registers (0x9D-0xA1)
        31. 7.6.2.31 DRC Bypass Registers (0xA2-0xA9)
        32. 7.6.2.32 Output Select and Mix Registers 8x2 (0x-0xAF)
        33. 7.6.2.33 8×3 Output Mixer Registers (0xB0-0xB1)
        34. 7.6.2.34 ASRC Registers (0xC3-C5)
        35. 7.6.2.35 Auto Mute Behavior (0xCC)
        36. 7.6.2.36 PSVC Volume Biquad Register (0xCF)
        37. 7.6.2.37 Volume, Treble, and Bass Slew Rates Register (0xD0)
        38. 7.6.2.38 Volume Registers (0xD1-0xD9)
        39. 7.6.2.39 Bass Filter Set Register (0xDA)
        40. 7.6.2.40 Bass Filter Index Register (0xDB)
        41. 7.6.2.41 Treble Filter Set Register (0xDC)
        42. 7.6.2.42 Treble Filter Index (0xDD)
        43. 7.6.2.43 AM Mode Register (0xDE)
        44. 7.6.2.44 PSVC Range Register (0xDF)
        45. 7.6.2.45 General Control Register (0xE0)
        46. 7.6.2.46 96kHz Dolby Downmix Coefficients (0xE3 to 0xE8)
        47. 7.6.2.47 THD Manager Configuration (0xE9 and 0xEA)
        48. 7.6.2.48 SDIN5 Input Mixer (0xEC-0xF3)
        49. 7.6.2.49 192kHZ Process Flow Output Mixer (0xF4-0xF7)
        50. 7.6.2.50 192kHz Dolby Downmix Coefficients (0xFB and 0xFC)
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 TAS5558 DVD Receiver Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Serial Port Master/Slave Configurations
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
      3. 8.2.3 Device System Diagrams
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
        3. 8.2.3.3 Application Curves
    3. 8.3 Do’s and Don’ts
      1. 8.3.1 Frequency Scaling AM Avoidance
    4. 8.4 Initialization Set Up
      1. 8.4.1 Startup Register Writes to get Audio Functioning
  9. Power Supply Recommendations
    1. 9.1 Power Supply
    2. 9.2 Energy Manager
    3. 9.3 Programming Energy Manager
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • General Features
    • 8ch Asynchronous Sample Rate Converter
    • 8 Channel Audio Processing for 32-192 kHz (ARSC to 96kHz)
    • 4 Channel Native Audio Processing at 192kHZ
    • 30 kHz Audio Bandwidth for DTS-HD Compatibility
    • Energy Manager for Overall System Power Control
    • Power Supply Volume Control
  • Audio Input or Output
    • Up to Five Synchronous Serial Audio Inputs (10 Channels)
    • Up to One Synchronous Serial Audio Outputs (2 Channels)
    • Trimmed Internal Oscillator for Clock Auto Detection and Limp Mode
    • Slave Mode 32-192KHz With Auto/Manual Sample Rate Detection
    • Eight Differential PWM Output That can Support AD or BD Modulation
    • Two Differential PWM Headphone Outputs
    • I2S Out for External Wireless Sub
    • PWM Output Supports Single Ended (S.E.) or Bridge Tied Load (BTL)
  • Audio Processing
    • Volume Control Range 18 dB to –127 dB (Master and Eight Channel Volume)
    • Bass and Treble Tone Controls With ±18-dB Range, Selectable Corner Frequencies
    • Configurable Loudness Compensation
    • Two Dynamic Range Compressors With Two Thresholds, Two Offsets, and Three Slopes
    • Seven Biquads Per Channel
    • Coefficient Banking and Auto Bank Switch
  • PWM Processing
    • >105-dB Dynamic Range
    • THD+N < 0.1% (0–40 kHz)
    • 20-Hz–40-kHz, Flat Noise Floor for 32KHz - 192KHz
    • Flexible Automute Logic With Programmable Threshold and Duration for Noise-Free Operation
    • Power-Supply Volume Control (PSVC) in High-Performance Applications
    • Adjustable Modulation Limit

2 Applications

    Interface Seamlessly with Most Digital Audio Decoders

3 Description

The TAS5558 is an 8-channel Digital Pulse Width Modulator (PWM) with Digital Audio Processing and Sample Rate Converter that provides both advanced performance and a high level of system integration. TAS5558 is designed to support DTS-HD specification Blu-ray HTiB applications. The ASRC consists of two separate modules which handle 4 channels each. Therefore, it is possible to support up to two different input sampling rates.

Texas Instruments Power Stages are designed to work seamlessly with the TAS5558. The TAS5558 also provides a high-performance, differential output to drive an external, differential-input, analog headphone amplifier.

The TAS5558 supports AD, BD, and ternary modulation operating at a 384-kHz switching rate for 48-, 96-, and 192-kHz data. The external crystal used must be 12.288 MHz. The TAS5558 also features power-supply-volume-control (PSVC), which improves dynamic range at lower power level and can be used as part of a Class G power supply when used with closed-loop PWM input power stages.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TAS5558 HTSSOP (56) 14.00 mm x 6.10 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Block Diagram

TAS5558 fbd_v2_les270.gif

4 Revision History

Changes from A Revision (June 2013) to B Revision

  • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section.Go
  • Changed the OSCRES Terminaltion From: 1MΩ Resister To: 18k resistor to GNDGo

Changes from * Revision (April 2013) to A Revision

  • Changed the TAS5558 device From: Preview To: ActiveGo