Acer Aspire X3990 Acer Aspire X3990 Desktop Service Guide - Page 17

Audio Interface Item Audio controller Audio controller type Audio channel Audio function control Mono or stereo Compatibility Sampling rate Microphone/Headphone jack Specification ALC662-VC HD Audio 5.1 Channel Enable/disable by BIOS Setup Stereo • "Meets performance requirements for Microsoft WLP 3.08 Vista premium and mobile PCs • "Six channel DAC supports 16/20/24-bit PCM format for 5.1 channel audio solution • "Two stereo ADC support 16/20-bit PCM format • "All DAC support independent 44.1k/48k/96kHz sample rate • "All ADC support independent 44.1k/48k/96kHz sample rate • "Supports 44.1k/48k/96kHz S/PDIF output • "All analog jack port are stereo input and output re-tasking • "Analog differential CD input • "Supports analog PCBEEP input • "Integrates digital BEEP generator • "Up to four channels of microphone array input are supported for AEC/BF application • "Supports legacy analog input to analog output mixer • "Built-in three headphone amplifiers for port-D (rear panel), port-E and port-F (front panel) • "Software selectable 2.5V and 3.2V reference output for microphone bias • "Software selectable boost gain (+10/+20/+30dB) for analog microphone input • "Two jack detection pins: each supports detection of up to 4 jacks • "Jack detection function is supported when device is in power down mode (D3) • "Supports two GPIO pins (general purpose input and output) • "Supports EAPD (external amplifier power down) control for external amplifier • "Support 1.5V~3.3V scalable I/O for HD Audio link • "Supports anti-pop mode when analog power AVDD is on and digital power is off • "48-pin LQFP 'Green' package • "Pin-to-pin compatible with ALC88x series, ALC660 series, and ALC26x series audio codecs 192 KHz (max.) Supported Chapter 1 9