alc203-lf Realtek Semiconductor Corporation, alc203-lf Datasheet - Page 47

• Manufacturer Part Number: alc203-lf
• Description: Two-channel Ac?97 2.3 Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

Two-Channel AC’97 2.3 Audio Codec
LINE-IN-R
LINE-IN-L
AUD-MIC
HP-OUT-R / AUD-OUT-R
HP-OUT-L / AUD-OUT-L
VREFOUT2-UAJ
+5VA
AUX-R / UAJ2-IO-R
AUX-L / UAJ2-IO-L
R20
R21
C57
1u
R24
JD2 / FRONT-JACK2-ON
D5
1N4148
Support stereo MIC(ALC203 and ALC250)
R15=0, R13=4.7K, R12=4.7K
Support mono MIC(ALC203 and ALC250)
R15=X, R13=X, R12=2.2K
0
0
4.7K
R51
22K
L16
L17
For Automatic Jack Sensing Only
R25
4.7K
GPIO1 JD Block
L18
L19
R22
22K
FERB
FERB
+
C71
3.3u
L12 FERB
L14 FERB
R50
FERB
FERB
C58
100P
GPIO1
AUD-RET-R
AUD-RET-L
R23
22K
10K
L10
L11
C59
100P
100P
C58
C73
3.3u
100P
Front Panel UAJ2
C62
1
2
3
4
5
Onboard Header and Reference Front Panel I/O Schematic
FERB
FERB
C59
100P
J12
C63
100P
R45
C55
100P
Front Panel MIC In
1
2
3
4
5
1
2
3
4
5
MIC2-IN
MIC1-IN
J12
J15
Front Panel Headphone Out
10K
C56
100P
Universal Audio Jack(UAJ) Front Panel for ALC203 and ALC250
VREFOUT
(INTEL Front Panel I/O Design Guide v1.0)
VREFOUT3-UAJ1
HP-OUT-R / UAJ1-IO-R
HP-OUT-L / UAJ2-IO-L
4.7K@203/250
R15
R17
JD1 / FRONT-JACK1-ON
Standard Front Panel
AUD-MIC
AUD-MIC-BIAS
AUD-OUT-R
AUD-OUT-L
1
2
3
4
5
I/O Connection Schematic
D4
1N4148
0@203/250
J10
Line Input
0
R13
Front Panel Connector
J14
R31
22K
Reserve For Automatic Jack Sensing Only
1
3
5
7
9
+
JD0 Block
R57
22K
R32
L16
L17
C66
3.3u
10
2
4
6
8
43
10K
FERB
FERB
JD0
R12
2.2K
R58
22K
LINE-OUT-L / AUD-RET-R
LINE-OUT-R / AUD-RET-L
L8
L9
AUD-RET-R
AUD-RET-L
C62
100P
+5VA
C64
C74
3.3u
C65
220u
220u
FERB
FERB
C63
100P
R42
C52
100P
1
2
3
4
5
J15
Front Panel UAJ1
AUDIO-RET-R
AUDIO-RET-L
10K
C53
100P
For Automatic Jack Sensing Only
GPIO0 JD Block
R59
22K
+5VA
UAJ1-IO-R
JD1-UAJ1
UAJ1-IO-L
VREFOUT2-UAJ2
UAJ2-IO-L
JD2-UAJ2
1
2
3
4
5
MIC2-IN
HP-OUT-R
JD1
HP-OUT-L
LINE-OUT-R
LINE-OUT-L
J7
Microphone Input
GPIO0
R60
22K
L13
L15
C72
3.3u
R26
R28
R29
R61
R62
VREFOUT2
AUX-L
JD2
For ALC250 with UAJ function
D4,D5=1N4148
For ALC250 with UAJ function
D4,D5=0
Front Panel Header
J14
1
3
5
7
9
11
13
15
FERB
FERB
20@202A/101
20@202A/101
ALC203 DataSheet
1K
20@203/250/202
20@203/250/202
R27
R47
20@203/250
10
12
14
16
R56
2
4
6
8
C60
100P
10K
KEY
+5VA
Standard Front Panel I/O
10K
Onboard Header for Front Pannel
J11
1
3
5
7
9
11
13
15
VREFOUT3-UAJ1
Realtek Front Panel I/O for UAJ
AUDIO-RET-R
AUDIO-RET-L
UAJ2-IO-R
C61
100P
10
12
14
16
2
4
6
8
KEY
1
2
3
4
5
J13
LINE Out
AUD-RET-R
AUD-RET-L
R48
20@203/250
+5VA
VREFOUT3
Rev1.6
AUX-R