FEATURES
  AC `97 2.3 COMPLIANT FEATURES
    6 DAC channels for 5.1 surround
    S/PDIF output
    Integrated headphone amplifiers
    Variable rate audio
    Double rate audio (Fs = 96 kHz)
    Greater than 90 dB dynamic range
    20-bit resolution on all DACs
    20-bit resolution on all ADCs
    Line-level mono phone input
    High quality CD input
    Selectable MIC input w/preamp
    AUX and line-in stereo inputs
    External amplifier power down (EAPD)
    Power management modes
    Jack sensing and device identification
    48-pin LQFP package
 
ENHANCED FEATURES
  Integrated parametric equalizer
  Stereo microphone with up to 30 dB gain boost
  Integrated PLL for system clocking
  Variable sample rate: 7 kHz to 96 kHz
     7 kHz to 48 kHz in 1 Hz increments
     96 kHz for double rate audio
  Jack sense with auto topology switching
  Jack presence detection on up to 8 jacks
  Three software-controlled VREF_OUT signals
  Software-enabled outputs for jack sharing
  Auto-down mix and channel spreading
  Microphone-to-mono output
  Stereo microphone pass-through to mixer
  Built-in microphone/center/LFE/line-in sharing
  Built-in SURROUND/LINE_IN sharing
  Center/LFE line swapping
  Microphone swapping
  Reduced support component count
  General purpose digital output pin (GPO)
  Separate LINE_OUT and HP_OUT pins
  Headphone drivers on LINE_OUT and HP_OUT pins
  Independent headphone/LINE_OUT operation