Table of Contents
Advertisement
AUDIO CODEC ALC269 VIA1802
A UD IO C OD EC
R 5 27
*0 _ 04
ALC269 VB
1 . 5 V S
VT1802P
R 5 29
0 _0 4
3 . 3 V S _A U D
3 . 3 V S
R 5 6 7
0 _ 0 4
C 2 81
0 . 1 u _1 6 V _ Y 5 V _ 0 4
E A P D _ MO D E
C
A
D 2 1
*R B 7 51 S -4 0 C 2
C
A
H D A _ R S T#
1 3
H D A _R S T #
D 1 8
R B 75 1 S -4 0C 2
C
A
2 8
K B C _ M U T E #
D 1 9
R B 75 1 S -4 0C 2
Q3 2
3 1
S P K OU T R -
G
R 5 1 4
* 10 0 K _ 04
*M T N 7 00 2 Z H S 3
5 V S
3 1
S P K O U T R +
Q2 7
G
H D A _R S T #
* B S S 1 38 _ N L
Clo sed to SB.
1 3
H D A _ S D OU T
C 2 91
1 3
H D A _ B I T C L K
Q 25
R 3 5 4
1 3
H D A _S D I N 0
M TN 7 00 2 Z H S 3
D
S
1 3
H D A _ S Y N C
3 . 3 V S
D 1 3
B A T 54 C W GH
1
A
2 8
K B C _ B E E P
3
B E E P
C
R 3 67
4 7 K _ 04
2
A
1 3
H D A _S P K R
FOR VOLUMN
ADJUST
3 .3VS _AUD
5VS
20ms
AZ_ RST#
PD#
Spe a ke r w i re le ngt h le ss tha n 80 00 mils , It don't ne ed LC Fil te r.
SPKOU TR +, R-, L+ , L- Trac e w idth
Spe a ke r 4 ohm-- -- --> 40m ils
D V D D _ I O
P V D D 1 _ 2
C 5 1 3
C 2 9 9
C 49 8
C 2 7 1
1 0 u_ 1 0 V _Y 5 V _0 8
0 . 1u _ 1 6V _Y 5V _0 4
1 0 u _1 0 V _ Y 5 V _ 08
0. 1 u _ 16 V _ Y 5 V _ 0 4
3 . 3V S _ A U D
C 4 9 9
C 27 0
* 10 u _ 10 V _ Y 5 V _ 0 8
0. 1 u _ 16 V _ Y 5 V _ 0 4
C 2 8 0
C 2 8 3
10 u _ 10 V _ Y 5 V _ 0 8
0 . 1 u_ 1 6V _Y 5V _0 4
C 49 7
C 4 96
5 V S
0 . 1 u_ 1 6 V _Y 5 V _0 4
1 0 u _1 0 V _ Y 5 V _ 08
R 5 1 8
10 K _ 0 4
U 2 9
P D #
4
1 3
S E N S E _ A
P D #
S e n se A
1 4
L I N E 2 -L
40
L I N E 2- L
1 5
S P K OU TL +
L I N E 2 -R
S P K - L+
LI N E 2 -R
S P K OU TL -
41
S P K - L-
1 6
M I C 2 _ L
MI C 2- L
44
1 7
M I C 2 _ R
45
S P K - R -
M I C 2 -R
S P K - R +
1 8
S E N S E -B
47
S e n se -B
E A P D _ MO D E
S P D I F C 2 / E A P D
S P D I F O
48
1 9
J D R E F
S P D I F O
J D R E F
2 0
M ON O -OU T
MO N O -OU T
D MI C -D A T
2
G P I O0
D MI C -C L K
3
2 1
M I C 1 -L _R
G P I O1
MI C 1- L
2 2
M I C 1 -R _ R
M I C 1 -R
DIGITAL
ANALOG
2 3
L I N E 1 -L
L I N E 1- L
5
2 4
L I N E 1 -R
S D A T A -OU T
LI N E 1 -R
22 p _ 50 V _ N P O_ 04
6
2 7
V R E F -A L C 2 6 9
B I T -C LK
V R E F
A Z _ S D I N 0 _R
8
2 8
L D O _C A P
3 3 _0 4
S D A T A -I N
L D O _ C A P
3 0
M I C 1 -V R E F O-R
MI C 1 -V R E F O -R
A Z _ S Y N C _ R
10
2 9
M I C 2 -V R E F O
S Y N C
M I C 2 -V R E F O
H D A _ R S T #
11
3 2
H E A D P H ON E -L
R E S E T #
H P -OU T- L
3 3
H E A D P H ON E -R
H P -O U T -R
B E E P _ R
12
P C B E E P
3 5
C B N -A L 2 69
C B N
3 6
C B P -A L C 2 6 9
C B P
3 4
O P V E E -A L C 2 6 9
O P V E E
C 30 9
1 u _6 . 3 V _ Y 5 V _ 04
B E E P _ C
A L C 2 6 9 Q-V B 6 -GR
R 36 5
C 30 8
M I C 1 -V R E F O-L
4 . 7 K _ 04
1 0 0p _ 5 0V _ N P O_ 0 4
A U D G
MI C 2-V R E F O
I N T _ MI C
Headp hone Anti -Pop Circ uit
3 . 3V S
R 5 6 8
R130
H E A D P H O N E -L
H E A D P H O N E -R
AL269
*2 2 0 K _0 4
E A P D _M OD E
G
Q3 9
Q4 0
VT1802P
Q3 8
* 2N 7 00 2 W
*2 N 7 0 02 W
*A O 3 41 5
G
G
MI C 1_ L
MI C 1_ R
R 5 6 9
R 57 0
R 5 71
MI C 1-V R E F O- R
*4 . 7 K _ 04
* 10 K _ 0 4
*1 0K _0 4
A U D G
MI C 1-V R E F O- L
R343 & R3 51
C 5 3 8
*1 0 u _6 . 3 V _ X5 R _0 6
AL269
VT1802P
A U D G
I N T _ MI C
R 70 0
1 K _ 04
1 229 D02( W240 HU)
5 V S
L ay ou t No te :
R 5 10
* 28 m i l _ 0 6
V er y clo se t o A ud io C ode c
ALC269 ? ?
VT1802 P ? ? ?
5 V S _ A U D
L4 0
5V S
H C B 1 00 5 K F -1 2 1T 2 0
1
2
C 5 1 0
C 50 9
C 49 4
0 . 1u _ 1 6V _ Y 5V _ 0 4
1 0 u_ 1 0 V _Y 5 V _0 8
1 u _ 6. 3 V _ Y 5 V _ 0 4
A U D G
A U D G
MI C _S E N S E
R 3 6 9
20 K _ 1 % _0 4
MI C _ S E N S E 3 1
H P _ S E N S E
R 3 6 8
39 . 2 K _ 1 %_ 0 4
H P _ S E N S E 31
ALC2 69
20K_ 1%_04
VT18 02P 5.1K _1%_0 4
R 5 2 3
2 0 K _1 % _ 04
C 51 2
*1 0 0p _ 50 V _ N P O_ 0 4
M I C 1 _ L
C 3 0 6
4 . 7u _ 6 . 3V _ X 5 R _ 0 6
A U D G
C 3 0 7
4 . 7u _ 6 . 3V _ X 5 R _ 0 6
M I C 1 _ R
C 3 01
0 . 1u _ 1 6V _ Y 5V _0 4
C 3 04
2 . 2u _ 6 . 3V _X 5 R _ 0 6
ALC269 2.2 u; VT180 2P
1 0u
C 2 98
1 0u _ 6 . 3V _ X 5 R _ 0 6
1 20 7
AL C269
2. 2u
H E A D P H O N E - L 3 1
VT 1802 P
NC
H E A D P H O N E - R 3 1
A U D G
C 27 2
2. 2 u _ 6. 3 V _ X 5 R _ 06
L 2 4
F C M1 0 05 K F -1 2 1 T0 3
S P K OU TL +
1
2
C 2 7 9
C 2 9 3
2. 2 u _ 6. 3 V _ X 5R _ 06
*1 u _ 6. 3 V _ Y 5 V _ 0 4
7/1 6
A U D G
S P K OU TL -
1
2
R 1 3 0
4 . 7 K _ 04
F C M 10 0 5 K F -1 21 T 0 3
J _I N T MI C 1
L2 3
R 1 2 8
1 K _ 04
1
2
C 11 8
8 82 6 6 -02 0 0 1
6 8 0p _ 5 0V _ X 7 R _ 0 4
J_ INTM IC1
2
1
C118
4.7K_04
AL269
680p
2.2K_04
VT1802P
330p
R 34 3
1 K _ 04
M I C 1 -L
3 1
R 35 1
1 K _ 04
M I C 1 -R
3 1
R 35 0
2 . 2 K _ 04
R 34 5
2 . 2 K _ 04
R 345 & R35 0
1K_04
A L269
2.2K_ 04
75_04
V T1802P
4.7K_ 04
C 51 1
4. 7 u _ 6. 3 V _ X 5 R _ 06
MI C 2_ L
I N T_ M I C _ R
C 51 4
4. 7 u _ 6. 3 V _ X 5 R _ 06
MI C 2_ R
1 20 2
C 3 9 5
0 . 1 u_ 1 6 V _Y 5 V _0 4
1 . 5 V S
1 9, 3 2
3 . 3 V S
3 , 9, 1 0 , 1 1, 1 2 , 1 3, 1 4 , 1 5, 1 6 , 1 7 , 18 , 1 9 , 20 , 2 3 , 24 , 2 5 , 26 , 2 8 , 29 , 3 1 , 3 2, 3 7
AUDIO CODEC ALC269 VIA1802 B - 31
Schematic Diagrams
7 5
C o m p o n e n t .
L 39
*H C B 1 6 08 K F -1 2 1 T2 5
.
C 5 0 3
0 . 1u _ 1 6V _ Y 5V _ 0 4
C 5 0 2
0 . 1u _ 1 6V _ Y 5V _ 0 4
R 5 3 3
*2 8 mi l _ 06
1 20 1
A U D G
EMI Require
Sheet 30 of 46
AUDIO CODEC
ALC269 VIA1802
J_ S P K L 1
S P K O U T L + _L
1
2
C 2 95
8 5 20 4 -0 20 0 1
* 18 0 p _5 0 V _ N P O _0 4
S P K O U T L -_ L
J_S PKL1
C 2 89
2
1
* 18 0 p _5 0 V _ N P O _0 4
Advertisement
Table of Contents
