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Schematic Diagrams
Audio Codec ALC201A (71-D4000-D04) B - 27
B.Schematic Diagrams
Audio Codec ALC201A
Sheet 26 of 35
Audio Codec
ALC201A
VDDA
+3VS
OPVCC
AGND
+5VS
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND AGND
AGND
AGND
+5VS
VDDA 12V
AGND
AGND
AGND
AGNDAGND AGND
OPVCC
AC_RST#[15,20]
AC_BCLK[15,20]
AC_SYNC[15,20]
AC_SDOUT[15,20]
AC_SDIN0[15]
LBP[29]
PHONE[20]
CD-L[14]
CD-R[14]
MIC1[27]
CDGND[14]
Vrefout [27]
SPDIF [27]
R_OUT+[27]
L_OUT+[27]
HP_SENSE[27]
AC_SDIN1[15,20]
PWRGD [9,15,29]
AC_SYNC
AC_SDIN0
AC_SDOUT
LOUT-R
AC_BCLK
CDGND
SPDIF
LOUT-L
AC_RST#
Vrefout
LOUT-L
MUTEOUT
R_OUT-
LOUT-R
HP_SENSE
L_OUT-
AC_BCLK
AC_SDIN0
AC_SDIN1
AC_BCLK
R_OUT+
L_OUT+
LBP
MIC1
CD-L
CD-R
PHONE
AMP_MUTE
AMP_MUTE
PWRGD
1M(R)
R482
C641
1000P
L96
FCM1608K-121
Y8
24.576MHz
C642 1UF
C616
0.1UF
C628 1UF
C649
1000P
R501
15K
T
1UFC643C615
22P
C637
0.1UF
C606 1UF
R502 10K R498 10K C655 0.22UC667 0.22U
R497
15K
R500
10K
T
T
T
C654
5P
C659
4.7U(0805)
C669
0.1UF
C657
1UF
JSPK2
CON2
1
2
U34
TPA0202
1
12
13
24
2
17
23
7
18
6 19
9
11
14
16
8
10
3
15
22
5
4
20
21
GND/HS
GND/HS
GND/HS
GND/HS
NC
NC
NC
VDD
VDD
L_BYPASS R_BYPASS
MUTE OUT
MUTE IN
SE/BTL#
HP/LINE#
SHUTDOWN
L_OUT-
L_OUT+
R_OUT-
R_OUT+
L_HP IN
L_LINE IN
R_HP IN
R_LINE IN
L98
FCM2012V121
0.47UC653
R480 47
R481 47
C671
4.7U(0805)
JSPK1
CON2
1
2
C668 0.22U C656 0.22U
C640
0.1UF
R485 4.7K(R)
C603
47P
C658
0.1UF
C660
0.1UF
R499
1K
R479 10K(R)
R430 10K
R478 10K
C607
0.01UF
R492 0
R488 0
C666
5P
C670
0.1UF
R494
4.7K
C622
1UF
C647
0.1UF
R487 4.7K
C630
0.01UF
R484
4.7K
C635
0.1UF
C610
1UF
C621
0.1UF
C648 0.1UF
C604
1UF
R477 10K
C629
0.01UF
C634
1UF
C623
0.1UF
R493 4.7K
T
T
C631 1UF
C636 1UF
R476 10K
C624
0.01UF
C650
1UF
C605
0.01UF
R486
0(R)
C613
10UF/10V
C639 10UF/10V
C672
0.1UF(R)
U1878L05(SO8)(R)
1 8
2
3
6
7
4
OUT IN
GND
GND1
GND2
GND3
T
C611
0.01UF
U33
ALC201A
1
9
25
38
4
7
26
42
2
3
5
6
8
10
11
12
13
14
15
16
17
18
20
19
21
22
23
24
27
28
29
30
31
32
33
34
35
36
37
39
40
41
43
44
45
46
47
48
VDD
VDD
AVDD
AVDD
VSS
VSS
AVSS
NC
XTL-IN
XTL-OUT
SDATA-OUT
BIT-CLK
SDATA-IN
SYNC
RESET#
PC-BEEP
PHONE
AUX-L
AUX-R
VIDEO-L
VIDEO-R
CD-L
CD-R
CD-GND
MIC1
MIC2
LINE-L
LINE-R
VREF
VREFOUT
AFILT1
AFILT2
VRAD
VRDA
CAP1
NC
LINE-OUTL
LINE-OUTR
MONO-OUT
HP-OUT-L
AVSS
HP-OUT-R
AVDD
AVSS
ID0#
ID1#
JD
SPDIFO
C612
1UF
C638
10UF/10V
C609
0.01UF
C678
10UF/10V
C663
10UF/10V
C651
1UF
C633
1UF
C664
4.7U(0805)
C665
0.1UF
T
L99
FCM2012V121
L110 FCM1608K-121
Q3
2N7002
GS
D
D29
ISS355
AC
C661
0.1UF
L97
BK3216HS800
C614
22P
C652
1UF
L111 FCM1608K-121
L112 FCM1608K-121 L113 FCM1608K-121
For some crystal,
For headphone application,
the bias resistor is needed
AGND:25,26,27,28,29,30,31,32,33