Intel VC820 - Desktop Board Motherboard Design Manual page 218

8 7
AC'97 Audio
VCC12
VR2
MC78M05CDT
D
3 VCC5_AUDIO
+5V
1
VIN
4
GND
C62
0.1UF
1 2
L17
R67
AC97_SPKR
20
10K
C
B
A
8 7
6
15,16
C48
No stuff C358.
C358
0.1UF
0.1UF
VCC3_3
AGND
AGND
AC97_SPKR_R
0.1UF
C85
C70
1UF-TANT
2 1 AC97_SPKR_C
+
LINE_IN_R
16
LINE_IN_L
16
MIC_IN
16
CD_R
16
CD_L
16
CD_REF
16
C63
MONO_PHONE 2 1
17 +
1UF-TANT
MONO_PHONE_C
C12
MONO_OUT 2 1 MONO_OUT_C
17 +
1UF-TANT
LNLVL_OUT_R
16
LNLVL_OUT_L
16
6
5 4
VCC3_3
VCC5_AUDIO
C77
C49 C21
AGND AGND
0.1UF
C76
U2
12
PC_BEEP
24
LINE_IN_R
23
LINE_IN_L
21
MIC1
11
RESET#
22
MIC2
5
SDATA_OUT
20
CD_R
8
SDATA_IN
18
CD_L
10
SYNC
19
AD1881
CD_REF
6
BIT_CLK
17
VIDEO_R
16
VIDEO_L
46
CS1
14
AUX_L
45
CS0
15
AUX_R
48
CHAIN_CLK
13
PHONE
47
EAPD
37
MONO_OUT
36
LINE_OUT_R
35
LINE_OUT_L
41
LNLVL_OUT_R
39
LNLVL_OUT_L
AC_XTAL_IN
AFILT1_C
AFILT2_C AC_XTAL_OUT
FILT_L_C
AGND
AGND
5 4
3 2
15,16
Series resistors are for test purposes only.
PRI_DWN_RST#_R PRI_DWN_RST#
R31
17
0K
AC_SDATAOUT_R AC_SDATAOUT
R77
11,17
0K
AC_SDATAIN_R AC_SDATAIN0
R116
11,17
0K
AC_SYNC_R AC_SYNC
R106
11,17
0K
AC_BITCLK_R AC_BITCLK
R56
11,17
0K
C84
10PF
No stuff C84
AUD_VREFOUT
16
Y1
XTAL
1 2
24.576MHZ
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
D
C
VCC3_3
100K
No stuff
B
EAPD 16
100K
No stuff
A
REV:
3.03
DRAWN BY: PROJECT:
LAST REVISED: SHEET:
11-29-1999_14:46 15 OF 38
1