Kontron COMe Starterkit Eval T2 - Manual (Page 108)

COM Express Interfaces
2.15.1.2. AC'97
Figure 40: AC'97 Schematic Example
PICMG ® COM Express ® Carrier Board Design Guide Draft Rev. 2.0 / December 6, 2013 108/218
LINE-OUT-L
MIC1-IN
LINE-IN-R
MIC2-IN
LINE-OUT-R
LINE-IN-L
MIC2-IN
LINE-IN-L
LINE-IN-R
GPIO1
GPIO0
VREFOUT
SPDIFI
SPDIFO
JD0
JD0
GPIO1
GPIO0
VREFOUT
MIC1-IN
LINE-OUT-L
LINE-OUT-R
GPIO1
GPIO0
+3.3VDD
+5VA
+5VA
+5VA
+5VAUX
VCC_3V3
VCC_12V
VCC_5V_SBY VCC_3V3
CEX AC_SDOUT
CEX AC_BITCLK
CEX AC_SDIN0
CEX AC_SYNC
CEX AC_RST#
CEX SPKR
(No Jack Detection Function)
show REALTEK
application for SPDIF
using, leave open if
not used
Reserved
Reserved
For ALC203 Automatic Jack Sensing Only
For ALC203 Automatic Jack Sensing Only
For ALC203 Automatic Jack Sensing Only
AGND
Tied at one point only under
the codec or near the codec
DGND
Support stereo MIC
GPIO Volume Control for ALC203
RA=0, RB=4.7K, RC=4.7K
RA=X, RB=X, RC=2.2K
ALC203(E)
Support mono MIC
RA
RB RC
C26 3 1u C26 3 1u
C280
100P
C280
100P
C287
4.7u
C287
4.7u R216
1M
R216
1M
R212
4.7K R212
4.7K
L10
FERB
L10
FERB
R202
22K
R202
22K
C281
100P
C281
100P
R22 2 10K R22 2 10K
C26 4 1u C26 4 1u
R213
4.7K R213
4.7K
L11
FERB
L11
FERB
C257
100P
C257
100P
C26 5 1u C26 5 1u
R21 9 0 R21 9 0
R223
22K
R223
22K
C27 5 1u C27 5 1u
C270
0.1u
C270
0.1u
R224
22K
R224
22K
C258
100P
C258
100P
C26 6 1u C26 6 1u
Vol-Down Vol-Down
J34
Line Input
J34
Line Input
1
2
3
4
5
R209
22K
R209
22K
C26 7 1u C26 7 1u
L15 FERB L15 FERB
R210
22K
R210
22K
+
C282
10u
+
C282
10u
J28
LINE Out
J28
LINE Out
1
2
3
4
5
L13 FERB L13 FERB
C268
4.7u
C268
4.7u
D30
1N5817M/CYL@power off CD
D30
1N5817M/CYL@power off CD
R22 0 10k R22 0 10k
C12B1
100P
C12B1
100P
U31 U31
PHONE 13
AUX-L 14
AUX-R 15
JD2 16
JD1 17
CD-L 18
CD-GND 19
CD-R 20
MIC1 21
MIC2 22
LINE-IN-L 23
LINE-IN-R 24 MONO-O 37
AVDD2 38
HP-OUT-L 39
NC 40
HP-OUT-R 41
AVSS2 42
GPIO0 43
GPIO1 44
ID0#/JD0 45
XTLSEL 46
SPDIFI/EAPD 47
SPDIFO 48
R211
2.2K/4.7K R211
2.2K/4.7K
J33
Microphone Input
J33
Microphone Input
1
2
3
4
5
R20 5 10K R20 5 10K
Vol-Up Vol-Up
D35
1N5817M/CYL@power off CD
D35
1N5817M/CYL@power off CD
R203
4.7K/X R203
4.7K/X
R22 1 10k R22 1 10k
C12A 1 1u C12A 1 1u
C271
1u
C271
1u
C277
0.1u
C277
0.1u
R206
22K
R206
22K
Y3
24.576MHz
Y3
24.576MHz
C283
1u C283
1u
R12B 1 10K R12B 1 10K
C259
1000P
C259
1000P
R21 7 0/X R21 7 0/X
+
C272
10u
+
C272
10u
R207
22 R207
22
C28 8 1u C28 8 1u
C26 0 1u C26 0 1u
C276
1u
C276
1u
+ C284
10u
+ C284
10u
R12A1
1K
R12A1
1K
L12 FERB L12 FERB
+
C273
10u
+
C273
10u
R208
22 R208
22
C28 9 1u C28 9 1u
R214
100K
R214
100K
R20 4 10K R20 4 10K
+
C278
10u
+
C278
10u
J35
CD-IN Header
J35
CD-IN Header 1
2
3
4
C269
47P C269
47P
U30
LM7805CT/200mA
U30
LM7805CT/200mA
IN 1 OUT 3
C290
22P
C290
22P
C261
4.7u
C261
4.7u
R215
100K
R215
100K
C279
0.1u
C279
0.1u
C285
100P
C285
100P
L9
FERB
L9
FERB
+ C274
10u + C274
10u
C291
22P
C291
22P
R21 8 0 R21 8 0
C286
100P
C286
100P
C262
1000P
C262
1000P
L8
FERB
L8
FERB
Vol-Mute Vol-Mute