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 Σ-Δ 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 TQFP Package

ENHANCED FEATURES
    S/PDIF Output with 48 kHz, 44.1 kHz, and 32 kHz
        Sample Rates
    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