Schematic Diagrams
B - 34 AUDIO CODEC ALC269
B.Schematic Diagrams
AUDIO CODEC ALC269
I N T _M I C
M I C 2 -V R E F O
MI C 2 _L
MI C 2 _R
D M I C -D A T
D M I C -C LK
H D A _ R S T#
B E E P _ R
A Z _ S D I N 0 _ R
P C B E E P
S P K OU TL -
L D O_ C A P
MI C 1 - V R E F O -R
MI C 2 - V R E F O
S P K O U T L +
H E A D P H O N E -L
H E A D P H O N E - R
C B P - A LC 2 69
C B N -A L 2 69
OP V E E -A L C 2 6 9
H E A D P H O N E - L
MI C 1 - R _ R
L I N E 1 -L
L I N E 1 -R
S E N S E -B
MI C 1 - L_ R
MO N O -OU T
S P K OU TL + _ L
L I N E 2 -R
L I N E 2 -L
S P K OU T L +
S P K OU T L -
MI C 1_ L
MI C 1_ R
M I C 1 _ R
M I C 1 _ L
M I C 1 -V R E F O-L
M I C 1 -V R E F O-R
I N T_ M I C
B E E P
MI C 1 -V R E F O-L
2
J_SPK1
1
S pe a k er 4 o hm- -- --- > 4 0mi ls
S pe a k er 8 o hm- -- --- > 2 0mi ls
EMI Requ ire
Cl ose t o co de c
La yo ut no te :
ANA LO G
D IG IT AL
5 VS
S pe a k er wi re le n gth l e ss t han 80 00 mil s , I t d on 't n ee d LC Fil te r.
GN D a n d AU DG sp a ce i s
60 mi ls ~ 10 0mi ls
T he rma l Pa d pla ce 9
V ia hole .
A Z_ RST#
La y ou t n ote :
P D#
20 ms
3. 3VS _AUD
S PKOU TR + ,R- ,L+ ,L- Tra c e w idth
S P K O U T R +_ R
3 1
S P K O U T R -_ R
31
E A P D _ MO D E
A U D G
6-03-02695-030
H E A D P H ON E -R
V R E F -A L C 2 6 9
S E N S E _ A
H D A _ R S T#
AZ_RS T# F or 1 .5 V
HDA Link De - po p
PD# C ont rol
AZ_ RST# F or 3. 3V
HDA Li n k De -p op
E A P D _ MO D E
12/8 ? ?
12/21 DEL
L 2 9
F C M1 0 0 5K F -1 21 T 0 3
L 2 8
F C M1 0 0 5K F -1 21 T 0 3
C 41 7
1 0 00 p _ 50 V _ X 7 R _ 0 4
M I C 1 -L
3 1
M I C 1 -R
3 1
S P K OU TL -_ L
LEFT
Fo r 1 .5 V H DA Li nk.
Fo r 3 .3 V H DA Li nk.
V T1 80 2P ? ? ?
J D R E F
NE AR C OD EC
VT 18 02 P R 35 7= 5. 1K _1% _0 4
VT 180 2P 10 u
C 2 8 2
6 80 p _ 5 0V _ X 7 R _ 0 4
C 5 0 8
* 10 0 p _5 0 V _ N P O_ 0 4
C 51 6
0 . 1 u_ 1 6 V _ Y 5 V _ 04
C 4 9 4
0. 1u _ 1 6V _Y 5 V _0 4
C 49 5
0 . 1 u_ 1 6 V _ Y 5 V _ 04
C 4 4 9
0 . 1u _ 1 6V _Y 5 V _ 04
R 1 7 1
4. 7 K _ 0 4
R 36 0
4 7 K _ 0 4
C 4 60
2 . 2 u _ 6. 3 V _ Y 5V _ 0 6
Q 2 1
* N D S 3 52 A P
G
D
S
L 3 8
H C B 10 0 5 K F -1 21 T 2 0
C 4 54
2 . 2 u_ 6 . 3 V _ Y 5 V _ 0 6
R 2 88
* 1 0K _0 4
C 4 48
0 . 1 u _1 6 V _ Y 5 V _ 0 4
R 2 87
* 10 0 K _ 0 4
C 5 1 0
4 . 7 u _ 6. 3 V _ X 5 R _ 0 6
C 5 13
* 1 0u _ 6 . 3 V _X 5 R _0 6
C 6 4 9
1u _ 6 . 3 V _ Y 5 V _ 04
C 44 0
1 0 u _6 . 3 V _ X 5R _ 06
H ea dp ho ne An ti -P op C ir cu it
C 5 0 4
10 u _ 6. 3 V _ X 5 R _ 0 6
C 4 46
0 . 1 u _1 6 V _ Y 5 V _ 0 4
C 4 2 8
18 0 p _5 0 V _ N P O _ 04
VT 180 2P NC P IN
DIGITAL
ANALOG
U 1 9
A L C 26 9 Q-V B 5 -GR
DV
D
D1
1
G P I O0 -D MI C - D A T
2
G P I O1 -D MI C - C L K
3
P D #
4
S D A T A -OU T
5
B I T -C LK
6
DV
S
S
2
7
S D A T A -I N
8
DV
D
D-
IO
9
S Y N C
1 0
R E S E T #
1 1
P C B E E P
1 2
S e n s e A
1 3
LI N E 2 -L
1 4
L I N E 2 -R
1 5
MI C 2 -L
1 6
M I C 2 -R
1 7
S e n s e- B
1 8
JD R E F
1 9
MO N O -OU T
2 0
MI C 1 -L
2 1
M I C 1 -R
2 2
LI N E 1 -L
2 3
L I N E 1 -R
2 4
AVS
S
1
26
V R E F
2 7
L D O _ C A P
2 8
M I C 2 -V R E F O
2 9
MI C 1 -V R E F O -R
3 0
M
IC
1-V
R
E
F
O
-L
31
H P - O U T -L
3 2
AVS
S2
37
O P V E E
3 4
C B N
3 5
C B P
3 6
H P -O U T -R
3 3
PV
D
D
1
39
S P K -L +
4 0
S P K -L -
4 1
PVS
S
1
42
PVS
S2
43
S P K -R +
4 5
S P K -R -
4 4
PV
D
D
2
46
S P D I F C 2 / E A P D
4 7
S P D I F O
4 8
AV
D
D
2
38
AV
D
D
1
25
GN
D
49
R 3 6 2
1K _0 4
C 4 42
* 1 0u _ 6 . 3V _X 5 R _ 0 6
R 28 2
* 22 0 K _ 0 4
C 5 0 7 1 u _ 6 . 3V _X 5 R _ 0 4
R 3 3 1
* 0 _0 4
R 3 6 6
2. 2 K _ 0 4
R 3 5 5
2 0 K _ 1% _ 0 4
R 3 1 5
0 _ 0 4
R 28 3
1 0 K _ 04
J P 2
*1 0 m il _ s ho rt _ 0 4
C 5 0 9
4 . 7 u _ 6. 3 V _ X 5 R _ 0 6
R 28 1
*1 0 K _ 0 4
C 4 7 9
10 u _ 6. 3 V _ X 5 R _ 0 6
C 4 4 1
*1 0 u _6 . 3 V _ X 5R _ 06
C
A
A
D 1 6
B A T5 4 C W GH
1
2
3
C 4 80
1 0 u _6 . 3 V _ X 5 R _ 0 6
C 5 1 4
1 0 0 p_ 5 0 V _ N P O _ 04
C 4 47
* 0 . 1u _ 1 6 V _Y 5 V _ 04
R 3 6 3
2. 2 K _ 0 4
R 26 7
* 15 m i l_ s h or t _0 6
C 4 81
0 . 1 u _1 6 V _ Y 5 V _ 0 4
R 1 7 4
1K _0 4
Q2 2
*2 N 7 0 0 2 W
G
D
S
C 4 3 9
1 0u _ 6 . 3V _X 5 R _ 0 6
J_ I N TM I C 1
88 2 6 6- 02 0 0 1
88 2 6 6- 2L
2
1
R 3 6 5
1K _0 4
L 3 7
H C B 1 00 5 K F -1 2 1T 2 0
R 3 5 6
3 9 . 2K _1 % _ 0 4
L 30
H C B 1 0 0 5K F -1 21 T 2 0
R 3 5 7
2 0K _ 1 % _ 04
C 4 8 2
0 . 1 u _1 6 V _ Y 5 V _ 0 4
R 3 16
3 3 _ 04
R 26 6
* 4. 7 K _ 0 4
J _S P K L1
8 52 0 4 -02 0 0 1
1
2
C 4 9 3
2 . 2 u _6 . 3 V _ Y 5 V _ 0 6
S
D
G
Q 2 3 B
*L 2 N 7 0 02 D W 1 T1 G
5
3
4
Q2 4
*B S S 13 8 _ N L
G
D
S
C 4 6 2
0. 1 u _ 1 6V _ Y 5V _0 4
S
D
G
Q 2 3A
* L 2N 7 00 2 D W 1T 1 G
2
6
1
C 5 1 1
4 . 7 u _ 6. 3 V _ X 5 R _ 0 6
C 5 1 2
4 . 7 u _ 6. 3 V _ X 5 R _ 0 6
J P 1
*1 0 m il _ s ho rt _ 0 4
R 36 1
4 . 7 K _ 0 4
C 4 2 7
18 0 p _5 0 V _ N P O _ 04
A U D G
A U D G
A U D G
A U D G
A U D G
5 V S
5V S _A U D
5 V S
5 V S _ A U D
5V S _A U D
3 . 3 V S
3 . 3 V S _ A U D
1. 5 V
3 . 3 V S _ A U D
A U D G
A U D G
A U D G
3 . 3 V S
J D _ S E N S E
3 1
J D _ S E N S E _ B
3 1
H D A _ S P K R
18
K B C _B E E P
34
3 . 3 V S
3 , 9 , 1 0 , 1 1, 1 2 , 1 8 , 19 , 2 0 , 2 1, 2 2 , 2 3 , 24 , 2 5 , 2 7, 2 8 , 3 0 , 31 , 3 2 , 3 4, 3 5 , 3 9
1 . 5 V
3, 6 , 9 , 1 0 , 2 5, 2 9 , 3 5 , 37 , 3 8
5 V S
1 1 , 1 8 , 24 , 2 5 , 2 8, 3 1 , 3 2 , 35 , 3 9 , 4 0
H D A _ S Y N C
1 8
H D A _ B I T C L K
18
H D A _ S D I N 0
1 8
H D A _ S D O U T
18
K B C _ M U T E #
3 4
H D A _ R S T#
1 8
CODEC (ALC269 & VT1802P)
F OR V OL UM N
A DJ US T
D V D D _ I O
P V D D 1 _ 2
C
A
A
D 1 3
B A T5 4 A W G H
1
2
3
EMI Require
VT 18 02 P 2. 2K _0 4
2
VT 18 02 P R 36 3, R3 66 =4 .7K _1 %_ 04
1
VT 18 02 P R3 62 ,R 36 5= 75 _1% _0 4
VT 18 02 P 33 0P
D 1 1
* R B 7 5 1 S -4 0C 2
A
C
P D #
E A P D _ MO D E
H E A D P H O N E -R
3 1
H E A D P H O N E -L
31
12/8
PC BEEP
Ve ry c lo se to
Au di o Co dec
Layout Note:
Pl e as e L et L C Filt e r tog e th e r a n d cl ose t o Cod ec .I F
Spe a ke r w i re le n gth i s l es s t ha n 800 0m il s It do n't
n e e d the LC Fil te r.
Sheet 33 of 49
AUDIO CODEC
ALC269
Summary of Contents for W251HNQ
Page 1: ...W251HPQ W251HPQ C W251HNQ W251HNQ C W255HP W255HN W258HPQ W258HPQ C W258HNQ ...
Page 2: ......
Page 24: ...Introduction 1 12 1 Introduction ...
Page 44: ...A 4 Top W255HP W255HN A Part Lists Top W255HP W255HN 灰色 非耐落 Figure A 2 Top W255HP W255HN ...
Page 46: ...A 6 Bottom A Part Lists Bottom Figure A 4 Bottom ...
Page 47: ...SATA BLU RAY COMBO A 7 A Part Lists SATA BLU RAY COMBO 非耐落 志精 Figure A 5 SATA BLU RAY COMBO ...
Page 48: ...A 8 DVD DUAL A Part Lists DVD DUAL Figure A 6 DVD DUAL 非耐落 志精 ...
Page 49: ...LCD A 9 A Part Lists LCD 頭厚 非耐落 中性 Figure A 7 LCD ...
Page 50: ...A 10 A Part Lists ...
Page 103: ...www s manuals com ...