Chapter 1 9
Audio Interface
Item Specification
Audio controller ALC662-VC
Audio controller type HD Audio
Audio channel 5.1 Channel
Audio function control Enable/disable by BIOS Setup
Mono or stereo Stereo
Compatibility • "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
Sampling rate 192 KHz (max.)
Microphone/Headphone jack Supported
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