GENERAL DESCRIPTION
The AD1989B audio codec and SoundMAX® software provides superior HD audio quality that exceeds Vista Premium performance. The AD1989B has ten 101 dB DACs and six 92 dB ADCs, three stereo headphone ports, C/LFE swapping, digital and analog PCBeep, and two independent S/PDIF outputs, making the AD1989B the right choice for PCs where performance and a rich feature set are primary considerations.

FEATURES
    Ten 192 kHz, 101 dB DACs
        7.1 surround sound plus independent headphone
        All independent sample rates, 8 kHz through 192 kHz
        Selectable stereo mixer on outputs
        16-, 20-, and 24-bit resolution
    Six 192 kHz, 92 dB ADCs
        Simultaneous record of up to 3 stereo channels
        All independent sample rates, 8 kHz through 192 kHz
        16-, 20-, and 24-bit resolution
    S/PDIF output
        2 independent transmitters, second S/PDIF can support
            external HDMI interface
        Supports 44.1 kHz through 192 kHz sample rates
        16-, 20-, and 24-bit data; PCM, and AC3 formats
        Digital PCM gain control
    S/PDIF input
        Supports 44.1 kHz through 192 kHz sample rates
        16-, 20-, and 24-bit data; PCM, and AC3 formats
        Digital PCM gain control
        Auto synchronizes to source sample rate
    Dedicated auxiliary pins
        Stereo CD/auxiliary I/O port w/GND sense
        MONO_OUT pin for internal speaker with EAPD support
    Microsoft Vista Premium® logo compliant
    Support up to 9 audio jacks
    Impedance and presence detection; retasking
    5 adjustable microphone bias pins
    Digital and analog PCBeep
    3 general-purpose digital I/O (GPIO) pins
    Multiple EAPD pins for external circuit control
    3.3 V analog and digital supply voltages
    1.5 V and 3.3 V HD Audio link signaling
    Advanced power management modes