Hardware Specifications and Configurations 1-37
Audio Codec and Amplifier
Item Specification
Audio
Controller
Conexant 20584
Features
Meets Microsoft WLP (Windows Logo Program) audio requirements
High performance DACs with digital >110dB and analog 98dB
(A -weighting) signal-to-noise
High performance ADCs with digital > 100dB and analog 90dB
(A -Weighting) signal-to-noise ratio
Six DAC channels support 16/20/24 -bit PCM format for 5.1 sound
playback
Two stereo ADCs support 16/20/24 -bit PCM format, multiple stereo
recording
All DACs supports 44.1k/48k/96k/192kHz sample rate
All ADCs supports 44.1k/48k/96k/192kHz sample rate
Primary 16/20/24-bit SPDIF-OUT supports
32k/44.1k/48k/88.2k/96k/192kHz sample rate
Secondary 16/20/24-bit SPDIF-OUT supports
32k/44.1k/48k/88.2k/96k/192kHz sample rate
Analog jacks (port-A, B, C, E and G) support stereo input and output
re-tasking
Support MONO output at port -H
Port-A/D/E/F built in headphone amplifiers
Port-E and Port-F headphone amplifiers can drive earphone directly
without DC blocking capacitor
Port-B/C/E/F with software selectable boost gain (+10/+20/+30dB) for
analog micr ophone input
Supports external PCBEEP input and built -in digital BEEP generator
Software selectable 2.5V/3.2V VREFOUT
Supports legacy analog mixer architecture
Four channels of digital microphone array input for voice applications
Two jack detection pins each designed to detect up to 4 jacks plugging
1.0dB/step playback volume control
1.5dB/step recording volume control
High pass filter to cancel DC offset from AD converter
Jack detection function is supported when device is in power down
mode (D3)
2 GPIOs (General Purpose Input and Output) for customized
applications. GPIO0 and GPIO1 share pin with digital microphone
Supports anti-pop mode when analog power AVDD is on and digital
power is off.
Audio Content Protection for Blu -Ray DVD playback (with selected
player provided by InterVideo, CyberLink and ArcSoft)
AMD low power ECR compliant and power status control for every
analog converter and pin widgets
Supports 3.3V digital core power, 1.5V~ 3.3V scalable digital I/O power
for HD Audio link, and 3.0~5.0V analog power
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