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B5
WDCDCREF
DACO1
L501
G11
WPAREF
DACO2
H11
DACO3
VCXOCONT
L502
A8
TXON
TXON
G10
C552
470p
BLM15BB750SN1J
EXPOUT
F10
C598
470p
FF_IN
M4
BEARP
L3
BEARN
C537
47p
L4
AUXO1
L9
R574
620
C585
CCO
R572
620
M8
C568
0.068u
MIC1P
R559
22K
L8
C567
0.068u
MIC1N
C575
M6
R581
AUXI1
M7
1u
MIC2P
MIC2P
L7
MIC2N
MIC2N
L6
AUXI2
C584
HOOK
K12
R561
0
GPA5
C571
J4
AUXO2
R575
68p
E4
VSSTH31
C581
F4
NA
VSSTH30
47p
G4
VSSTH29
H4
VSSTH28
J5
VSSTH27
J6
VSSTH26
J7
VSSTH25
C573
1u
J8
VSSTH24
1608
C587
3300p
H9
VSSTH23
G9
VSSTH22
C572
1u
4700p
F9
C589
VSSTH21
1608
E9
VSSTH20
VBATI
D8
VSSTH19
D7
VSSTH18
D6
R598
VSSTH17
R578
F7
VSSTH1
G7
0
4.7K
VSSTH2
G6
16
5
VSSTH3
VREF
NFSPR
E5
15
6
VSSTH4
GND
NFHPR
E6
14
7
VSSTH5
V+
NFSPL
E7
13
8
VSSTH6
STBY
NFHPL
1u
E8
VSSTH7
C574
C577
F8
VSSTH8
1u
1608
G8
R595
VSSTH9
H8
VSSTH10
H7
10K
VSSTH11
H6
VSSTH12
C582
H5
R573
0
VSSTH13
3D_OFF
G5
R524
1K
4700p
VSSTH14
3D_CTRL1
F5
R525
1K
VSSTH15
3D_CTRL2
D5
C579
3300p
VSSTH16
C517
C519
C578
1u
1u
2700p
R510
BLM15BB750SN1J
0
EARP
R511
0
EARM
R569
C507
C554
47p
0
R579
X503
C566
C569
22p
N504
IP4025CX20-LF
U8360-MIC
R577
0
NA
A2
VDIG
C565
MICP
100u
D4
AFMS_R_INT
NA
2527
C1
A1
CCO
MICN
D2
A3
MICP_INT
ATMS
D1
A4
MICN_INT
ATMS_CAP
0
D3
B4
R584
0
U508
ATMS_INT
AFMS_R
NLAS4684FCT1
C2
A5
ATMS_AD
AFMS_L
R582
0
100u
D5
B5
AFMS_L_INT
VDD
2527
C2
C4
C570
IN1
NO1
B1
C3
GND1
GND4
68p
B2
C4
A2
A4
GND2
GND5
IN2
NO2
B3
C5
GND3
GND6
C3
C1
COM1
NC1
TJATTE2
A3
A1
COM2
NC2
C564
2012
10u
R585
0
R586
100K
HS_SPK_SEL
HS_AMP_EN
R594
4.7K
R590
8.2K
Figure 3-4-3. Schematic of Audio Path
0
1u
R566
0
C555
10p
VBATI
C558
C559
47p
47p
R591
120K
C583
NA
R596
120K
C590
C586
NA
10u
2012
U509
LM4809LD
7
8
C592
100u
VDD
VOUT1
2527
R580
33n
R592
120K
1
VIN1
6
C593
100u
VOUT2
R583
33n
R597
120K
5
2527
VIN2
C1930
10p
C1931
2
3
BYPASS
GND
10p
R588
4
9
_SHDN
BGND
VBATI
C580
0
1u
R589
1608
C1932
100K
C1933
10p
R576
10p
0
U505
TPA2005D1ZQYR
R539
R537
C528
D1
B4
IN-
VDD1
33n
C4
18K
C563
0
VDD2
B1
10u
C529
NC
R534
C1
2012
68p
IN+
A4
18K
VO-
C526
A1
D4
_SD
VO+
33n
U504
TPA2005D1ZQYR
R533
R532
C524
D1
B4
IN-
VDD1
33n
C4
18K
0
VDD2
B1
C525
NC
R531
C1
68p
IN+
A4
18K
VO-
C560
A1
D4
33n
_SD
VO+
R530
AUDIO_AMP_EN
0
R529
100K
- 57 -
3. Technical Brief
VDIG
CN502
13
15
R571
R2252
17
1
2
NA
10K
3
4
5
R2253
6
JACK_DET
7
10K
8
9
10
11
12
14
R567
16
18
100K
C-1827541
R564
0
1608
R558
0
GUIDE HOLE
SPK_LEFT_M
OJ500
OJ501
OJ503
OJ504
OJ505
SPK_LEFT_P
SPK_RIGHT_M
SPK_RIGHT_P
Engineer:
LG ELECTRONICS INC.
Jeongseok Lee
Mobile Handsets R&D Center
Drawn by:
HW Group, Development Lab 6.
Jeongseok Lee
R&D CHK:
TITLE:
U8550-spfy0106301-1.1
DOC CTRL CHK:
Vincenne, Regulators
MFG ENGR CHK:
Page 5 of 7(Baseband 1 of 3)
Size:
12 1 8 A
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