Schematic Diagrams
Audio Codec ALC662 B - 23
B.Schematic Diagrams
Audio Codec ALC662
AU D GAUDG
5V S
AUDG
AU D G
AUDG
3. 3 V S_ A U D
AUDG
AU D G
5VS_ AUD
AUD G
AU D G AUDG
AUDG
AUDG
3.3VS
5 V _REGOU T
5V 3 2, 3 3, 3 4, 3 5, 3 7, 3 8, 3 9, 4 0
5V S 1 9, 2 0, 3 0, 3 1, 3 2, 3 4, 3 5
3. 3 V S 6 , 9, 1 0, 1 1, 1 9, 2 0, 2 1, 2 2, 2 3, 24 , 25 , 27 , 28 , 30 , 31 , 32 , 33 , 34 ,35,37
AZ _SDO UT22,32
BEEP34
AZ_SD IN022
AZ_BITCLK22,32
AZ_SYNC22 , 32
MIC1 -L32
MIC1 -R32
FRONT-L 30
SPDIFO18,32
FRONT-R 30
R _HP_OUT_ A30
L_HP_OUT_A30
AZ_R ST#22 , 30 ,32
JD _ S EN SE _ M I C32
JD _ S EN SE32
MIC1 -RMIC1 -L
Z2709
Z2710
Z2711
Z2733
Z2708
Z2724
Z2725
Z2 7 0 3
Z2713
Z2718
Z2721
Z2717
MIC1 -VREFO-R
L_ H P _O U T _A
SP D I F O
Z2723
Z2711
Z2710
Z2720
AZ_SYNC_R
AZ_BITCLK_R
Z2701
EAPD_MODE
Z2716
MIC1 -VR EFO-L MIC1-VREF O-R
MIC2 -VREFO
Z2712
Z2722
AZ_SDOUT_R
Z2702
Z2708
Z2715
Z2709
Z2719
Z2743
MIC1 -VREFO-L
Z2704
AZ_SDIN0_ R
R_HP_ OUT_ A
Z2744
Z2745
AZ_RST#_R
Z2746
Z2747
J D_ SENSE_ MIC J D_SENSE_MIC_R
JD_SENSE J D_SENSE_HP
JD_SENSE_HP
JD_SENSE_MIC_R
INT_MIC_RINT_ MIC
INT_MIC
MIC2 -VR EF O
C510 .1U_10V_X7R_04
C 7 44 10 U _ 10 V_ 0 8
C 762 4.7U_6.3V_06
R 5 25 20 K_ 1% _0 4
C777 1U_10V_06
R51 9
* 1 00 K_ 04
C538
.1U_10V_X7R_04
C50 6
*10U_10V_08
R522
*1 00 K_0 4
C 754 4.7U_6.3V_06
C7 49 * 1U_ 10 V_0 6
C7 51 * 1U_ 10 V_0 6
R547 10K_04
D9 *SCS551 V-30
AC
R515
2. 2 K _0 4
C 7 84 * 22 P _5 0V _0 4
R 5 44 1 K _0 4
C316
6 80 P _5 0V _ 04
C53 2
10 U _1 0V _ 08
C537
.1U_10V_ X7 R_0 4
C51 2
.1U_10 V_X7R_04
C521 .1U_10V_X7R_04
C509
*680P_5 0V_04
C745
.1U_10V_ X7R_0 4
C52 8
1U _ 10 V _0 6
C756
*.1U_16V_04
DIGITAL
A NAL OG
U38
ALC 662-GR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
27
28
29
30
31
32
33
34
35
36
37
39
40
41
42
43
44
45
46
47
48
38
25
DVDD1
GPIO0
GPIO1
DVSS1
SD AT A - O U T
BI T - C L K
DVSS2
SD AT A - I N
DVDD2
SY N C
RESET #
PC BE E P
Se ns e A ( J D 1)
LI N E 2- L
LI N E 2- R
MIC2-L
MIC2-R
CD-L
CD-GND
CD-R
MIC1-L
MIC1-R
LINE1-L
LI N E 1- R
AVSS1
VREF
MIC1-VREFO-L
LI N E 1- V R E F O - L
MIC2 -VREFO
LIN E2 -VREFO
MIC1 -VREFO-R
DCVOL
Se ns e B ( J D 2)
FR O N T- O U T- L
F RONT -OUT-R
LINE1-VREFO-R
SURR-OU T-L
J DREF
SU RR-OUT-R
AVSS2
CEN-OUT
LF E - O U T
SIDESURR-OU T-L
SIDESU RR-OUT-R
SP D I F I / E A PD
SP D I F O
AVDD2
AVDD1
C53 6
. 1U _ 10 V _X 7R _ 04
R 5 52 33 _0 4
C 758 4.7U_6.3V_06
R237
2.2K_04
R 5 49 22 _0 4
C 752 4.7U_6.3V_06
R516
2.2K_04
C 7 78 * 10 0P _ 50 V_ 04
R 5 48 33 _0 4
C520 .1U_10V_X7R_04
C508
10U _10V_08
R 5 45 33 _0 4
C515
*680P_50V_04
J_ INTMIC1
88 26 6- 0 20 01 _R
88 26 6- 2 R
2
1
C514 .1U_10V_X7R_04
U2 3
*G9 24
1
23
4 5
SHDN#
GNDBY P
OUT VIN
R 5 53 0_ 04
R524 75_04
R526 75_04
L49 HC B1005KF-121T20
L43 HCB1005KF-121T20
R 56 9 39 . 2K _ 1% _0 4
R568 20K_1%_04
R567 1K_04
Very close t o Audio Codec
Layout Note:
Layout Note :
Code c pin 1 ~ pin 11 and pin 47 and pin 48
are Digital signals.
The others a re Analo g signal s.
Layout Note:
Ve ry close to Audi o Codec
12
J_INTMIC1
D05 10/15
Sheet 22 of 38
Audio Codec
ALC662
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