Description . 3Additional Information 3Jack Configuration 3Specifications . 4Test Conditions . 4Performance .. 4General Specifications .. 4HDAudio Link Specification . 7Power-Down States .. 7Absolute Maximum Ratings 8ESD Caution .. 8Environmental Conditions .. 8Pin Configuration and Function Descriptions .. 9Digital Microphone Interface Timing Specifications . 12HD Audio Widgets 14HD Audio Parameters 15Widget Parameters . 16Connection List .. 17Default Configuration Bytes . 18Outline Dimensions .. 19Ordering Guide .. 19REVISION HISTORY4/08 Rev 0. Initial versionAD1883Rev. 0|Page 3 of 20|April 2008GENERAL DESCRIPTIONThe AD1883 audio codec and SoundMAX software provide superior high definition audio quality that exceeds Vista Pre-mium 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 Micr FEATURESMicrosoft Vista Premium Logo for notebook90+ dB audio outputs, 85 dB audio inputsWLP 3.0 and 4.02 stereo headphone amplifiersInternal 32-bit arithmetic for greater accuracyImpedance and presence detection on all jacksFull analog mixer with DAC inputs3 independent microphone bias pinsDigital and analog PCBeep3 general-purpose digital I/O (GPIO) pins 3.3 V analog supply voltage1.7 V to 1.9 V or 3.3 V digital supply voltages1.5 V or 3.3 V HD Audio link signaling voltageAdvanced power management modes48-lead, RoHs compliant LFCSP_VQ package192 kHz DACs/ADCs2 independent stereo DAC/ADC pairsSimultaneous record of 2 stereo channelsSimultaneous playback of 2 stereo channelsIndependent 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 rates16-, 20-, and 24-bit resolutionSelectable stereo mixer on outputsSTEREO DIGITAL MICROPHONE INTERFACE2 digital microphone channelsSupports 1 or 2 microphones per pinSelectable clock rates o Specifications subject to change without notic