24 Chapter 1
Audio Interface
Battery
Item Specification
Audio Controller Realtek ALC268S for High Definition Audio Codec
Features
• High-performance DACs with 97dB SNR (A-Weighting), ADCs with
90dB SNR (A-Weighting)
• Meets premium performance requirements for Microsoft WLP 3.0x and
future requirement
• Ten DAC channels support 16/20/24-bit PCM format for 7.1 sound
playback, plus 2channels of independent stereo sound output (multiple
streaming) through the front panel output
• 2 stereo ADCs support 16/20/24-bit PCM format recording
simultaneously.
• All DACs supports 16/20/24-bit, 44.1k/48k/96k/192kHz sample rate
• All ADCs supports 16/20/24-bit, 44.1k/48k/96k/192kHz sample rate
• Two independent S/PDIF-OUT converters support 16/20/24-bit,44.1k/
48k/88.2k/96k/192kHz sample rate
• High-quality analog differential CD input
• Supports external PCBEEP input, built-in digital BEEP generator, and
pass through function in D3 mode.
• Software selectable 2.5V/3.75V/4.7V VREFOUT
• Two jack detection pins each designed to detect up to 4 jacks
• Extra jack detection pin for CD input when it is used as an optional line
level input, S/PDIF input and output
• Support legacy analog mixer architecture
• Wide range (-80dB ~ +42dB) volume control with 1.5dB resolution of
analog to analog mixer gain
• Software selectable boost gain (+10/+20/+30dB) for analog
microphone input
• All analog jacks are stereo input and output re-tasking for analog plug
& play
• Built-in headphone amplifiers for each re-tasking jack
• Two GPIOs (General Purpose Input and Output) for customized
applications
• Supports Anti-pop mode when analog power AVDD is on and digital
power is off
• Support stereo digital microphone interface to improve voice quality
• Integrates high pass filter to cancel DC offset generated from digital
microphone
• 48-pin LQFP 'Green' package
• Support low voltage IO for HDA Link (1.5V~3.3V)
Item Specification
Vendor & model name
Battery Type
Pack capacity
Number of battery cell
Package configuration
Normal voltage
Charge voltage
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