AC’97 2.1 FEATURES
  Variable Sample Rate Audio
  Multiple Codec Configuration Options
  External Audio Power-Down Control

AC’97 FEATURES
  AC’97 2.1-Compliant
  Greater than 90 dB Dynamic Range
  Stereo Headphone Amplifier
  Multibit ΣΔ Converter Architecture for Improved S/N Ratio Greater than 90 dB
  16-Bit Stereo Full-Duplex Codec
  Four Analog Line-Level Stereo Inputs for: LINE-IN, CD, VIDEO, and AUX
  Two Analog Line-Level Mono Inputs for Speakerphone and PC BEEP
  Mono MIC Input w/Built-In 20 dB Preamp, Switchable from Two External Sources
  High Quality CD Input with Ground Sense
  Stereo Line-Level Outputs
  Mono Output for Speakerphone or Internal Speaker
  Power Management Support
  48-Terminal LQFP Package

ENHANCED FEATURES
  Full Duplex Variable Sample Rates from 7040 Hz to 48 kHz with 1 Hz Resolution
  Jack Sense Pins Provide Automatic Output Switching
  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 Master Volume Control
  Extended 6-Bit Headphone Volume Control
  Digital Audio Mixer Mode
  PHAT™ Stereo 3D Stereo Enhancement