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Schematic Diagrams
B - 26 CODEC ALC850
B.Schematic Diagrams
CODEC ALC850
Sheet 25 of 40
CODEC ALC850
HP_SENSE
FRONT-R
FRONT-L
MUTE
MUTE
ACZ_RST#
R_OUT+
LOUT-L LOUT-R
HP_SENSE
H8_MUTE
L_OUT- R_OUT-
MUTEOUT
PRE_OUT_L
L_OUT+
LOUT-L
LOUT-R
MUTE
SPDIF/SurrB-L
ACZ_BITCLK
CHSEL
ACZ_RST#
ACZ_SDOUT
MIC1
LFE
CD_R
CD_L
CD_IN_L
PC-BEEP
LINE-R
LINE-L
Sense B
CD_IN_R
ACZ_SYNC
ACZ_SDIN0
SurrBack-L
PRE_OUT_R
SurrBack-R
Audio_R
Audio_L
FRONT-MIC1
JD5
Sense A
PRE_OUT_L
PRE_OUT_R
SurrBack-L
SurrBack-R
R729 10K
AMP_MUTE
D04
R569 0(R)
R549 1K
C636
1000P
L57 FCM1608K-121
C787
10U/10V(0805)
R183 0(R)
L92
FCM2012V121
1
2
JSPK1
CON2
L98
BK2125HS121(0805)
C514
0.1U
L88
BK3216HS800
R523
10K
C744 1U
R460 0.1(0805)
12
C829
22P(R)
R547 10K
L84 FCM1608K-121
R558 0(R)
C586 8200P
C834
0.1U
R480 0
C838
10U/10V(0805)
L39 FCM1608K-121
C637 0.1U
L94
BK2125HS121(0805)
R466 20K
R427 20K
12
C833
22P(R)
C681
4.7UF(0805)
GND/HS
1
GND/HS
12
GND/HS
13
GND/HS
24
NC
2
NC
17
NC
23
VDD
7
VDD
18
L_BYPASS
6
R_BYPASS
19
MUTE OUT
9
MUTE IN
11
SE/BTL#
14
HP/LINE#
16
SHUTDOWN
8
L_OUT-
10
L_OUT+
3
R_OUT-
15
R_OUT+
22
L_HP IN
5
L_LINE IN
4
R_HP IN
20
R_LINE IN
21
U50
TPA0202
SURR-R
SURR-L
FRONT-R
CEN-O
FRONT-L
C135 1U
AC
D35
ISS355(R)
SurrBack-L
LFE-O
SPDIF-OUT
AMP_MUTE
SurrBack-R
C584 1UF
R524 10K
C778
0.01U
C550
4.7U(0805)
R479 20K
C562 1UF
C745 1U
R503 10K
C746 1U(R)
R509 100
C830
0.01U
C774
0.01U
R532 4.7K
R464 20K
G
DS
Q46
2N7002
C775 100P(R)
R144 0(R)
1 2
Y8
24.576MHz(R)
C817
0.1U
C804
10U/10V(0805)
C743 1U
R504
10K
GPIO1
R463 20K
T
C606 0.033U
C679
4.7U(0805)
C634
0.22U
C585 1UF
C784
0.01U
C540 8200P
C204 1U(R)
C633
4.7UF(0805)
C513
10U/10V(0805)
C685 0.033U(R)
C134 1U
C783
0.01U
C777
0.01U
C203 1U(R)
R563 0
C683 0.033U
G
S D
Q53
2N7002
C983
0.1U
R568 0(R)
G
S D
Q55
2N7002
C819 1U(R)
C806 1000P(R)
G
SD
Q56
2N7002
R556 22
R475 20K
1
2
JSPK2
CON2
R534 4.7K
C682
0.22U
C603 1U(R)
R143 0(R)
C818 10P(R)
C749 1U
R548 0(R)
C605 1U(R)
C747 1U
C552
1UF
C551
0.1uF
G
S D
Q54
2N7002
R530 0
R184 0(R)
R531 4.7K
C786
0.01U
T
C782
0.01U
C233 1U
C553
10U/10V(0805)
C805 10U/10V(0805)
R187
10K
L83 FCM1608K-121
L89
FCM2012V-121
C668
0.1U
R567 0(R)
C607 1U(R)
1
2
JSPK5
CON2S
GND
14
GND
8
ShutDown
2
DC Vol Control
7
Right in
10
HP sense
21
Gain Sel
3
Vdd
16
Beep
11
-Left Out
17
+Left Out
15
+Right Out
28
-Right Out
26
L2in
19
L2fin
18
R2fin
25
R2in
24
Mute
5
Mode
4
Left Dock
13
Left in
12
Right Dock
9
Vdd
27
Vdd
6
GND
1
GND
20
GND
23
Bypass
22
U49
APA4835
R562 1M(R)
C785
0.1U
C632
0.1UF
OUT
1
IN
8
GND
2
GND1
3
GND2
6
GND3
7
T
4
NC
5
U5178L05(SO8)(R)
R557 0
C803 1U
R502
1K
C541
0.1U
L56 FCM1608K-121
1
2
JSPK3
CON2S
R188 10K
C669
10U/10V(0805)
R478 20K
C680
0.1UF
1
2
JSPK4
CON2S
DVDD1
1
GPIO0/XTLI
2
GPIO1/XTLO
3
DVSS1
4
SDATA-OUT
5
BIT-CLK
6
DVSS2
7
SDATA-IN
8
DVDD2
9
SYNC
10
RESET#
11
PCBEEP
12
Sense A(JD1)
13
LINE2-L/AUX-L
14
LINE2-R/AUX-R
15
MIC2-L
16
MIC2-R
17
CD-L
18
CD-GND
19
CD-R
20
MIC1-L
21
MIC1-R
22
LINE1-L
23
LINE1-R
24
AVSS1
26
VREF
27
MIC1-VREFO-L
28
LINE1-VREFO-L
29
MIC2-VREFO
30
LINE2-VREFO
31
MIC1-VREFO-R
32
DCVOL
33
Sense B(JD2)
34
FRONT-OUT-L
35
FRONT-OUT-R
36
LINE1-VREFO-R
37
SURR-OUT-L
39
JDREF
40
SURR-OUT-R
41
AVSS2
42
CEN-OUT
43
LFE-OUT
44
SurrBack-L/GPIO0
45
SurrBack-R/XTLSEL
46
SPDIFI/EAPD
47
SPDIFO
48
AVDD2
38
AVDD1
25
U55
ALC850
C658
0.1U
C751 1U
C684
1000P
R443 20K
G
DS
Q6
2N7002(R)
L38 FCM1608K-121
C750 1U
C604 1U(R)
C776
0.01U
R476 20K
R717 0(R)
R425 0.1(0805)
R551 10K(R)
C549
0.1UF
C232 1U
C689 0.1U
C780
0.1U
T
R561 22
C779
0.01U
C982
0.1U
T
C635 0.033U(R)
C631
0.1UF
L93
BK2125HS121(0805)
R426 0.1(0805)
C820 1000P(R)
R465 0.1(0805)
C781
0.1U
T
C587 0.1U
C748 1U
C602
4.7U(0805)
T
C563
10U/10V(0805)
L53 FCM1608K-121
R137 0
R525
10K
C594
0.1UF
R546 0
R477 20K
R535 4.7K
C548 1UF
C529 0.1U
L52 FCM1608K-121
+5VCDROM
APGND
+12V
VDDAC
APGND
AGND
VDDAC
APGND
AGND
AMP5V
APGND
AGND
AGND
APGND
AMP5V
+3VS
AGND
+5VCDROM
AGND
APGND
AGND
APGND
AGND
VDDAC
+5VCDROM
AMP5V
AGND
AGND
VDDAC
OPVCC
APGND
APGND
AGND
APGND
APGND
APGND
+12V
AMP5V
+3VS
OPVCC
AGND
LINE-R(26)
MIC1(26)
LOUT-R (26,28)
ACZ_SYNC(12,21,27,29)
L_OUT+(26)
LFE(26)
PRE_OUT_L(28)
+5VCDROM (26,27)
LOUT-L(26,28)
CD_R(26,27)
CODECCLK14(2)
Audio_R(26,29)
Audio_L(26,29)
MIC1-VREFO-L (26)
H8_MUTE (24)
ACZ_SDIN0(12,27)
R_OUT+ (26)
PC-BEEP(24)
CDGND(26,27)
LINE-L(26)
CD_L(26,27)
ACZ_BITCLK(12,21,27,29)
FRONT-L(28)
+12V (14,18,26,28,32,34)
PRE_OUT_R(28)
HP_SENSE (26)
ACZ_RST#(12,21,27,29)
FRONT-R(28)
ACZ_SDOUT(12,21,27,29)
SurrB-R (26)
TV_LINE_R(16,26)
SPDIF/SurrB-L (26)
+3VS (2,8,9,10,11,12,13,14,15,16,19,20,21,22,24,27,29,31,32,
3
TV_LINE_L(16,26)
SurrB-R
CHSEL
R183
0(R)
NC0.01UF
C777
C776
NC1UC233
C232 1U
RD
0(R)
15MIL
C743
NC
NC
1U
1U
C744
f=1/(2πR3C2)=1KHZ, so
C2=8200P
R144
ALC 880
0
40MIL
Not Support UAJ
60MIL60MIL
0
60MIL
NC
RC
80MIL
0
40MIL
RB
R143
NC
NC
R567
NC
80MIL
ALC 850
RA
15MIL
0.01UF
NC
NC
R184
60MIL
NC
CODECCLK14
MIC1-VREFO-L
JD4
JD3
AMP_MUTE
SPDIF-OUT
GPIO1
GPIO1