3.2 Digital Data Path
20-bit SPDIF In
20-bit SPDIF Out
ALC250 Data Sheet
SPDIF
Input
0
1
1
SPDIF
0
Output
AC-
LINK
20-bit PCM
Digital Process Engine
DVOL
0
Digital
1
EQ
DVOL
10
Left 1 0
1
0
Right
Left
1 Digital
0
3D
DAC
Original
ADC
EQ&MIC
ADC
Mixer
Block
Line-In
CD-In
MIC-In
...
Digital Stereo
Digital Mono
Analog Stereo
Analog Mono
DVOL : Digital Volume Control
Analog outputs
Figure. Digial Data Path Diagram
Two Channel AC’97 2.3 Audio Codec
3
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