GENERAL DESCRIPTION

The AD1883 audio codec and SoundMAX® software provide superior high definition audio quality that exceeds Vista Premium performance for notebooks. The AD1883 has two 192 kHz DAC pairs, two 192 kHz ADC pairs, a S/PDIF output, a 2-channel digital microphone interface, and digital and analog PCBeep. These features make the AD1883 the right choice for notebook PCs that meet Microsoft Vista Premium performance as well as desktop PCs that meet Microsoft Vista Basic performance.

FEATURES

  Microsoft Vista Premium Logo for notebook 90+ dB audio outputs, 85 dB audio inputs WLP 3.0 and 4.0

  2 stereo headphone amplifiers

  Internal 32-bit arithmetic for greater accuracy

  Impedance and presence detection on all jacks

  Full analog mixer with DAC inputs

  3 independent microphone bias pins

  Digital and analog PCBeep

  3 general-purpose digital I/O (GPIO) pins

  3.3 V analog supply voltage

  1.7 V to 1.9 V or 3.3 V digital supply voltages

  1.5 V or 3.3 V HD Audio link signaling voltage

  Advanced power management modes

  48-lead, RoHs compliant LFCSP_VQ package

192 kHz DACs/ADCs

  2 independent stereo DAC/ADC pairs

  Simultaneous record of 2 stereo channels

  Simultaneous playback of 2 stereo channels

  Independent 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz sample rates

  16-, 20-, and 24-bit resolution

  Selectable stereo mixer on outputs

STEREO DIGITAL MICROPHONE INTERFACE

  2 digital microphone channels

  Supports 1 or 2 microphones per pin

  Selectable clock rates of 1.5 MHz, 2.0 MHz, and 3.0 MHz

  Mono and stereo array support

  8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz sample rates

  16-, 20-, and 24-bit resolution

S/PDIF OUTPUT

  Supports 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz sample rates

  16-, 20-, and 24-bit data; PCM and AC3 formats

  Digital PCM gain control

AUXILIARY PINS

  Stereo CD/auxiliary I/O port with ground sense

  Stereo auxiliary/dock I/O port

  Mono out pin for internal speakers or telephony