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Schematic Diagrams
Audio Codec ALC269
AUDIO CODEC
A LC269 VB
V T1802P
Sheet 29 of 43
Audio Codec
ALC269
Closed to SB.
[ 1 3 ]
H D A _ S Y N C
3.3 VS_ AUD
5V S
AZ_RST#
PD#
Spe a ke r w ire le ngth l e ss tha n 8 00 0mi ls , I t don't ne e d LC Fi lte r.
SPKO UTR+ ,R- ,L+ ,L- Tra ce wi dth
Spe a ke r 4 ohm- -- --- > 40 mil s
Spe a ke r 8 ohm- -- --- > 20 mil s
B - 30 Audio Codec ALC269
R 5 2 7
* 0_ 0 4
1 . 5V S
R 5 2 9
0 _ 04
3 . 3 V S _ A U D
C 51 3
10 u _ 10 V _ Y 5 V _ 0 8
3 . 3V S
3 . 3 V S _ A U D
R 5 67
0 _0 4
C 2 8 1
C 28 0
0 . 1u _ 1 6V _ Y 5V _ 0 4
1 0 u_ 1 0 V _Y 5 V _0 8
5 V S
E A P D _M OD E
C
A
D 2 1
* R B 7 5 1 S -40 C 2
R 51 8
C
A
H D A _ R S T #
[ 13 ]
H D A _ R S T #
D 1 8
R B 7 51 S -4 0 C 2
1 0 K _0 4
C
A
P D #
[ 27 ]
K B C _ MU TE #
D 1 9
R B 7 51 S -4 0 C 2
S P K OU T L+
S P K OU T L-
Q 32
[ 30 ]
S P K O U T R -
G
R 51 4
*1 0 0K _ 0 4
* MT N 7 0 0 2Z H S 3
5 V S
[ 3 0]
S P K OU TR +
E A P D _ M OD E
Q 2 7
S P D I F O
G
H D A _ R S T #
*B S S 1 3 8_ N L
D M I C -D A T
D M I C -C LK
[ 1 3 ]
H D A _S D OU T
C 2 9 1
2 2 p_ 5 0 V _N P O_ 0 4
[ 1 3 ]
H D A _B I TC L K
Q2 5
A Z _ S D I N 0 _ R
R 35 4
33 _ 0 4
[ 13 ]
H D A _ S D I N 0
MT N 7 0 0 2Z H S 3
D
S
A Z _ S Y N C _R
H D A _ R S T#
3 . 3V S
B E E P _R
D 13
C 3 09
B A T 5 4 C W G H
1
A
1u _ 6 . 3V _ Y 5V _ 0 4
[ 27 ]
K B C _B E E P
3
B E E P
B E E P _C
C
R 3 6 7
4 7K _ 0 4
2
A
[ 13 ]
H D A _ S P K R
FOR VOL UMN
R 3 6 5
C 3 08
ADJ UST
4. 7 K _ 0 4
10 0 p _5 0 V _ N P O _0 4
E A P D _ MO D E
20 ms
D V D D _ I O
P V D D 1 _ 2
R 5 1 0
*2 8 mi l _0 6
C 29 9
C 4 9 8
C 2 7 1
0 . 1 u _1 6 V _ Y 5 V _ 04
10 u _ 10 V _ Y 5 V _ 0 8
0 . 1 u_ 1 6 V _Y 5 V _0 4
C 4 99
C 2 7 0
5 V S _ A U D
*1 0 u_ 1 0V _Y 5V _0 8
0 . 1u _ 1 6V _Y 5V _0 4
C 2 83
0 . 1 u _1 6 V _ Y 5 V _ 04
C 4 97
C 4 9 6
C 51 0
0. 1 u _ 16 V _ Y 5 V _ 0 4
1 0u _ 1 0V _ Y 5V _ 0 8
0 . 1 u_ 1 6 V _Y 5 V _0 4
A U D G
U 2 9
4
1 3
S E N S E _ A
R 36 9
2 0 K _1 % _ 04
P D #
S en s e A
1 4
LI N E 2 -L
R 36 8
3 9 . 2K _ 1 % _0 4
4 0
L I N E 2 -L
1 5
LI N E 2 -R
S P K -L +
L I N E 2 -R
4 1
S P K -L -
1 6
MI C 2 _ L
M I C 2 -L
4 4
1 7
MI C 2 _ R
4 5
S P K -R -
MI C 2 -R
A LC269
S P K -R +
1 8
S E N S E -B
4 7
S en s e -B
V T1802 P
S P D I F C 2 / E A P D
4 8
1 9
JD R E F
R 52 3
S P D I F O
J D R E F
2 0
MON O-O U T
C 5 1 2
M ON O-OU T
2
GP I O 0
3
2 1
MI C 1 -L _ R
C 30 6
4 . 7 u_ 6 . 3 V _ X5 R _ 0 6
GP I O 1
M I C 1 -L
2 2
MI C 1 -R _R
C 30 7
4 . 7 u_ 6 . 3 V _ X5 R _ 0 6
MI C 1 -R
DIGITAL
A NALOG
2 3
LI N E 1 -L
L I N E 1 -L
5
2 4
LI N E 1 -R
S D A T A -O U T
L I N E 1 -R
6
2 7
V R E F -A L C 26 9
B I T -C L K
V R E F
8
2 8
LD O_ C A P
S D A T A -I N
LD O_ C A P
3 0
MI C 1 -V R E F O-R
M I C 1 -V R E F O-R
1 0
2 9
MI C 2 -V R E F O
S Y N C
MI C 2- V R E F O
1 1
3 2
H E A D P H O N E -L
R E S E T #
H P -O U T -L
3 3
H E A D P H O N E -R
H P -OU T -R
1 2
P C B E E P
3 5
C B N - A L2 6 9
C 2 7 2
2 . 2 u_ 6 . 3 V _X 5 R _ 0 6
C B N
3 6
C B P -A L C 2 6 9
C B P
3 4
OP V E E -A L C 26 9
OP V E E
A LC 26 9 Q-V B 5-G R
MI C 1-V R E F O -L
A U D G
MI C 2 -V R E F O
R 13 0
I N T _ MI C
R 12 8
He adph one A nti-P op C ircui t
3 . 3 V S
R1 30
R 5 68
AL 269
4 .7K_0 4
H E A D P H ON E - L
VT 1802P
2 .2K_0 4
H E A D P H ON E - R
* 2 20 K _ 0 4
G
Q 39
Q4 0
MI C 1 _L
R 3 4 3
Q 3 8
*2 N 7 0 02 W
*2 N 70 0 2 W
MI C 1 _R
R 3 5 1
* A O3 4 1 5
G
G
MI C 1 -V R E F O -R
R 3 5 0
R 5 69
R 5 7 0
R 5 7 1
MI C 1 -V R E F O -L
R 3 4 5
* 4 . 7K _ 0 4
*1 0 K _0 4
*1 0 K _ 04
R3 43 & R351
A U D G
AL 269
1 K_04
VT 1802P
7 5_04
C 53 8
* 10 u _ 6. 3 V _ X 5R _ 06
C 5 1 1
4 . 7 u_ 6 . 3 V _X 5 R _ 0 6
I N T _M I C
A U D G
C 5 1 4
4 . 7 u_ 6 . 3 V _X 5 R _ 0 6
1 . 5 V S [ 1 9 , 3 1]
3 . 3 V S [ 3 , 9 , 1 0, 1 1 , 1 2, 1 3 , 1 4, 1 5 , 1 6, 17 , 1 8 , 19 , 2 0 , 23 , 2 4 , 25 , 2 7 , 28 , 3 0 , 3 1, 3 6 ]
5 V S [ 11 , 1 2 , 19 , 2 0 , 25 , 3 0 , 31 , 3 6 , 37 ]
7 5
C o m p o n e n t .
5 V S
La yo ut N ot e:
Ve ry cl os e t o Au di o C od ec
5 V S
L 40
H C B 1 0 0 5K F -12 1 T 20
1
2
C 5 09
C 4 9 4
L 3 9
1 0 u _1 0 V _ Y 5 V _ 0 8
1u _ 6 . 3V _ Y 5V _ 0 4
H C B 1 6 08 K F -1 2 1 T2 5
.
A U D G
C 50 3
M I C _ S E N S E
C 50 2
MI C _ S E N S E [ 3 0 ]
H P _S E N S E
H P _ S E N S E [ 3 0 ]
20 K_1% _04
EMI Require
5. 1K_1 %_04
20 K _ 1 %_ 0 4
*1 0 0 p_ 5 0 V _N P O_ 0 4
MI C 1 _ L
A U D G
MI C 1 _ R
C 3 0 1
0 . 1 u _1 6 V _ Y 5 V _ 04
C 3 0 4
2 . 2 u _6 . 3 V _ X5 R _0 6
ALC 269 2.2u ;
VT 1802P 10 u
C 2 9 8
2 . 2 u _6 . 3 V _ X5 R _0 6
ALC2 69
2.2u
H E A D P H ON E -L [ 30 ]
H E A D P H ON E -R [ 3 0 ]
VT18 02P NC
A U D G
L2 4
F C M 10 0 5 K F -12 1 T 03
S P K O U T L+
1
2
S P K OU TL + _ L
C 2 7 9
C 2 93
C 2 9 5
2 . 2 u_ 6 . 3 V _X 5 R _ 0 6
* 1 u_ 6 . 3 V _Y 5 V _0 4
*1 8 0p _ 5 0V _ N P O_ 0 4
S P K O U T L-
1
2
S P K OU TL -_ L
A U D G
7 /16
4. 7 K _ 0 4
F C M1 0 05 K F -1 2 1T 0 3
C 2 8 9
J _ I N T MI C 1
L 2 3
1K _ 0 4
*1 8 0p _ 5 0V _ N P O_ 0 4
1
2
C 1 18
8 8 2 66 -0 2 00 1
6 8 0 p_ 5 0 V _X 7 R _ 0 4
J_IN TMI C1
2
1
C118
AL269
680p
VT180 2P
330p
1K _ 0 4
MI C 1 -L [ 3 0 ]
1K _ 0 4
MI C 1 -R [ 3 0]
2. 2 K _ 0 4
2. 2 K _ 0 4
R34 5 & R350
AL2 69
2. 2K_04
VT1 802P
4. 7K_04
M I C 2 _L
M I C 2 _R
0 . 1 u_ 1 6 V _Y 5 V _0 4
0 . 1 u_ 1 6 V _Y 5 V _0 4
A U D G
J _ S P K L 1
1
2
85 2 0 4-0 2 0 01
J _SPK L1
2
1
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