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1
CD_IN1
1
2
3
4
CD_IN
CD_IN_CONN
R7
A
GND_AUD
0 (ADI)
CN3C
LINE_IN
LININ
4.7K (ADI)
SPEAK
SPEAK_IN
B
CN3B
MIR
20
18
MIC_IN
MIL
16
MIC_IN
L13
FB
GND_AUD
LINE_OUT
C
GAME PORT
R51
4.7K
JAB1
JAB1
JBB1
JBB1
JACX
JACX
JBCX
JBCX
MSO
MSO
JBCY
JBCY
JACY
JACY
D
JBB2
JBB2
JAB2
JAB2
MSI
MSI
C63
C64
C58
C57
L12
100p
FB
1
2
R18
C19
1u
CDL
4.7K
(1206)
R9
C14
1u
CDR
4.7K
(1206)
R16
R17
4.7K
4.7K
C18
1u
CDGND
(1206)
LIR
R3
C12
1u
LINE_R
26
1K
(1206)
24
R4
LIL
C13
1u
LINE_L
22
1K
(1206)
R8
R5
4.7K (ADI)
30K (VIA)
30K (VIA)
GND_AUD
R37
SPEAK
C67
1u
PC_BEEP
1K
R36
C66
4.7K
1000p
GND_AUD
1K (VIA)
R33
0 (ADI)
L3
XMICIN
C11
1u
MICIN
FB(ADI)
0(VIA)
C17
C65
1000p (ADI)
1000p (VIA)
LINEOUTR
LINEOUTL
C10
(1206)
1u
GND_LOUT
RN6
4.7K 8P4R
L11
VCC_JOY
FB
R32
2K
JACX_
R31
2K
JBCX_
R30
2K
JBCY_
R29
2K
JACY_
C62
C61
C60
C59
.01u
GND_MIDI
2
L19
FB
CT17
CB7
CT14
CB6
CM2
.1u
1u
.1u
10u
47u
SYNC
R38
SDIN_A
SDOUT
-ACRST
R40
BITCLK_A
R39
10K
CDL
CDR
CDGND
LINE_L
LINE_R
PC_BEEP
VDD5
MICIN
R34
R11
PHONE
1K (VIA)
PHONE
CT7
R35
10u (VIA)
2.2K (VIA)
R49
20K 1%
C77
100p
U3
(1206)
C1
1u
R1
20K 1%
2
INA
5
SDN
3
BYPASS
C2
1u
R2
20K 1%
6
INB
(1206)
TPA122
C78
100p
R50
20K 1%
CN3A
1
9
2
10
3
11
4
12
5
13
AVDD
6
R351
14
7
15
R350
8
GND_LOUT
C56
GAME_PORT
.1u
* For test audio quality
3
U2
1
25
DVDD1
AVDD1
9
38
DVDD2
AVDD2
4
26
DVSS1
AVSS1
7
42
DVSS2
AVSS2
47
R20
EAPD
10
48
SYNC
CHAIN_CLK/NC
22
8
SDATA_IN
5
46
SDATA_OUT
CS1/ID1
11
45
RESET
CS0/ID0
22
6
BIT_CLK
35
LINEOUTL
LINE_OUT_L
14
36
LINEOUTR
AUX_L
LINE_OUT_R
15
AUX_R
37
MONO_OUT
16
28
VIDEO_L
VREFOUT
17
VIDEO_R
27
VREF
18
31
CD_L
FILT_R/NC
20
32
C7
CD_R
FILT_L/NC
19
33
CD_GND
RX3D/NC
34
CX3D/NC
C9
23
39
.1u (ADI)
LINE_IN_L
NC
24
40
LINE_IN_R
NC
41
NC
43
NC
12
44
PC_BEEP
NC
21
MIC1
22
29
MIC2
AFILT1
13
30
PHONE_IN
AFILT2
2
3
XTL_IN
XTL_OUT
560p (ADI)
270p (VIA)
ADI1881/VT1661A
(0805)
1
2
X1
24.576MHz
C69
C68
22p
22p
AVDD
L18
CT11
FB
47u
L9
1
CT12
220uF
OUTA
8
FB
VAA
4
GND
L10
7
CT13
220uF
OUTB
FB
CB5
C55
C54
470p
470p
.1u
GND_LOUT
+12V
CT15
CB8
.1u
10u
AVDD5
0 (OPT)
0 (OPT)
VIA TECHNOLOGIES, INC.
GND_AUD
Title
Size
C
Date:
3
4
AVDD5
VDD5
L1
FB
CB1
CT3
CT2
CM1
.1u
1u
10u
10u
L14
FB
GND_AUD
4.7K
GND_AUD
R19
4.7K (VIA)
VDD5
R10
4.7K (VIA)
4.7K (ADI)
R6
XMICIN
10u (VIA)
CT1
.1u (VIA)
GND_AUD
C3
CB2
CT4
C6
1u (ADI)
.1u
47u
1u (ADI)
C8
GND_AUD
.047u (ADI)
(0805)
GND_AUD
C5
C4
560p (ADI)
270p (VIA)
(0805)
GND_AUD
CN3D
LOR
32
30
LOL
28
LINOUT
L8
FB
GND_LOUT
VDD5
Q1
AMS1117-5.0
IN
OUT
VIN
VOUT
CB3
CT8
.1u
10u
AC97 AUDIO CODEC & AUDIO PORTS
Document Number
Rev
VT5228C (Preliminary)
Wednesday, November 24, 1999
Sheet
18
of
20
4
A
B
C
D
0.1
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