TAS5508B

• General Features
  • Automated Operation With an Easy-to-Use
    Control Interface
  • I²C Serial-Control Slave Interface
  • Integrated AM Interference-Avoidance Circuitry
  • Single, 3.3-V Power Supply
  • 64-Pin TQFP Package
  • 5-V Tolerant Inputs
• Audio Input/Output
  • Automatic Master-Clock-Rate and
    Data-Sample-Rate Detection
  • Eight Serial Audio Input Channels
  • Eight PWM Audio Output Channels Configurable as
    Six Channels With Stereo Lineout or Eight Channels
  • Line Output Is a PWM Output to Drive an External
    Differential-Input Operational Amplifier
  • Headphone PWM Output to Drive an External
    Differential Amplifier Like the TPA112
  • PWM Outputs Support Single-Ended and
    Bridge-Tied Loads
  • 32-, 38-, 44.1-, 48-, 88.2-, 96-, 176.4-, and
    192-kHz Sampling Rates
  • Data Formats: 16-, 20-, or 24-Bit Left-Justified,
    I²S, or Right-Justified Input Data
  • 64-f_S Bit-Clock Rate
  • 128-, 192-, 256-, 384-, 512-, and 768-f_S Master
    Clock Rates (Up to a Maximum of 50 MHz)
• Audio Processing
  • 48-Bit Processing Architecture With 76 Bits
    of Precision for Most Audio-Processing Features
  • Volume Control Range 36 dB to –109 dB
    • Master Volume Control Range of 18 dB
      to –109 dB
    • Eight Individual Channel Volume Control
      Ranges of 18 dB to –109 dB
  • Programmable Soft Volume and Mute Update Rates
  • Four Bass and Treble Tone Controls With ±18-dB Range,
    Selectable Corner Frequencies, and Second-Order Slopes
    • L, R, and C
    • LS, RS
    • LR, RR
    • Sub
  • Configurable Loudness Compensation
  • Two Dynamic Range Compressors With Two Thresholds,
    Two Offsets, and Three Slopes
  • Seven Biquads Per Channel
  • Full 8×8 Input Crossbar Mixer. Each Signal-Processing
    Channel Input Can Be Any Ratio of the Eight Input Channels.
  • 8×2 Output Mixer, Channels 1–6. Each Output is
    Mix of Any Two Signal-Processed Channels. It is Recommended
    to Use the Pass-Through Output Mixer Configuration.
  • 8×3 Output Mixer, Channels 7 and 8. Each Output Is a
    Mix of Any Three Signal-Processed Channels. It Is Recommended
    to Use the Pass-Through Output Mixer Configuration.
  • Three Coefficient Sets Stored on the Device Can Be
    Selected Manually or Automatically (Based on Specific
    Data Rates).
  • DC Blocking Filters
  • Able to Support a Variety of Bass Management Algorithms
• PWM Processing
  • 32-Bit Processing PWM Architecture With 40 Bits
    of Precision
  • 8× Oversampling With Fifth-Order Noise Shaping at
    32 kHz–48 kHz, 4× Oversampling at 88.2 kHz and
    96 kHz, and 2× Oversampling at 176.4 kHz and 192 kHz
  • >102-dB Dynamic Range
  • THD+N < 0.1%
  • 20-Hz–20-kHz, Flat Noise Floor for 44.1-, 48-, 88.2-,
    96-, 176.4-, and 192-kHz Data Rates
  • Digital De-Emphasis for 32-, 44.1-, and 48-kHz Data Rates
  • Flexible Automute Logic With Programmable Threshold
    and Duration for Noise-Free Operation
  • Intelligent AM Interference-Avoidance System Provides
    Clear AM Reception
  • Power-Supply Volume Control (PSVC) Support for Enhanced
    Dynamic Range in High-Performance Applications
  • Adjustable Modulation Limit

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