Intel VC820 - Desktop Board Motherboard Design Manual page 219

8 7
AC'97 Audio
D
R163
AUD_VREFOUT
15
2.2K
C27
R9
MIC_IN 1 2 MIC_IN_C
15 +
1K
1UF-TANT
C34
0.01UF
AGND AGND
C
C23
LINE_IN_R 1 2 LINE_IN_R_C
15 +
1UF-TANT
C25
LINE_IN_L 1 2 LINE_IN_L_C
15 +
1UF-TANT
AGND AGND
B
CD Analog Input
R52
J4
1 CD_L_J 4.7K
2 CD_REF_J
R27
3
4 CD_R_J 4.7K
R167
4.7K
A
AGND AGND AGND
8 7
6
Microphone Input
J5
MIC_IN_R MIC_IN_FB M20
M19
2 1
M18
L5 M17
M16
DB15_AUD_STK
AGND
Line_In Analog Input
J5
1 2 LINE_IN_R_FB LI25
LI24
L2
LI23
1 2 LINE_IN_L_FB LI22
LI21
L3
DB15_AUD_STK
AGND
C59
CD_L_C 2 1 CD_L
+ 15
1UF
C58
CD_REF_C 2 1 CD_REF
+ 15
1UF
C50
CD_R_C 2 1 CD_R
+ 15
1UF
6
5 4
C6
R171
LNLVL_OUT_R 1 2 LNLVL_R_C
15 +
20K
1UF-TANT
C13
R361
LNLVL_OUT_L 1 2 LNLVL_L_C
15 +
20K
1UF-TANT
AGND
5 4
3 2
Stereo HP/Spkr out
C10
HP_OUTA 1 2 HP_OUTA_C 1
+
100UF
C3
1 2 HP_OUTB_C 1
+
100UF
AGND AGND
100PF
R360
20K U1
LM4880
VCC5_AUDIO
1 8
OUTA VDD
LNLVL_R_R HP_OUTB
2 7
INA OUTB
AC_BYPASS
3 6
BYPASS INB
4 5 EAPD
GND SHUTDN
AGND
LNLVL_L_R
TITLE: INTEL(R) 820 CHIPSET DUAL PROCESSOR CUSTOMER REFERENCE BOARD
AUDIO
PCD PLATFORM DESIGN
R
1900 PRAIRIE CITY ROAD
FOLSOM, CALIFORNIA 95630
3 2
1
J5
2 HP_OUTA_FB HP30
HP29
L4
HP28
D
2 HP_OUTB_FB HP27
HP26
L1
DB15_AUD_STK
AGND
15
C4
15
C
AGND
B
A
REV:
3.03
DRAWN BY: PROJECT:
LAST REVISED: SHEET:
11-29-1999_14:46 16 OF 38
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