AC’97 2.1 FEATURES
   Variable Sample Rate Audio
  
AC’97 FEATURES
   AC’97 2.2 Compliant
   Greater than 90 dB Dynamic Range
   Integrated Stereo Headphone Amplifier
   Multibit Σ-Δ Converter Architecture for Improved S/N
      Ratio Greater than 90 dB
   16-Bit Stereo Full-Duplex Codec
   Two Analog Line-Level Stereo Inputs for:
      LINE-IN and CD
   Mono MIC Input with Built-In Programmable Preamp
   High-Quality CD Input with Ground Sense
   Power Management Support
   48-Terminal TQFP Package
  
ENHANCED FEATURES
   Full Duplex Variable Sample Rates from 7040 Hz to
      48 kHz with 1 Hz Resolution
   Software-Enabled VREFOUT Output for Microphones and
      External Power Amp
   Split Power Supplies (3.3 V Digital/5 V Analog)
   Mobile Low-Power Mixer Mode
   Extended 6-Bit Headphone Volume Control
   Digital Audio Mixer Mode