Service Manuals, User Guides, Schematic Diagrams or docs for : LG Mobile Phone LG U8380 LG U8380
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8. CIRCUIT DIAGRAM
1 2 3 4 5 6 7 8 9 10 11 12
A
C1012
22p
N1002
DFYK61G95LBNCW-TT1
ANT
3 1
WCDMA_TX TX RX WCDMA_RX
GND5 GND1
GND6 GND2
GND7 GND3
GND8 GND4
B
W1001
KMS-507 R1000
C1013
G2
C1000 0
GSM_TX RF
G1
ANT ANTPAD100
22p 4p
DCS_TX N1000
8 LMSP54MA-213 L1002 L1001
12 14 6
NA 6.8nH
ANT
GSM900_RX GSM1800_1900_TX
GSM900_TX
WCDMA
15 9
GND2 VC2
13 10
GND1 VC1
5 GND5
7
GSM1900_RX
GND4
V1001 3 11
GSM1800_RX
GND3 VDD
RN47A4
VCG
VCCB
3
4
R1002 16 4 2 1
C C1010 NA
1000p
2
DCS_RX
1
5
PCS_RX
GSM_RX
R1006
ANTSW3
0
L1005
ANTSW2
L1004
ANTSW1
L1003
ANTSW0
D
C1007 C1001 C1009 C1002 C1008 C1003 C1004 C1005
0.01u 10p 10p 0.01u 10p 0.01u 0.01u 10p
E R1810
VDD_A VCCA
0
R1811
VDD_B VCCB
0
C1810 C1811 C1802
10u 10u 10u
2012 2012 2012
F
R1825
V_wivi_A
R1851 0
VBATI
EXTLDO
0 R1826
N1850 LP3981ILD-2.8 V_wivi_B
1 6
VOUT VEN 0
R1850 2 5
G VIN BYPASS
0
3 4
7 GND2
VOUT_SE GND1
C1850 C1852 C1851
0.1u 10u 0.033u
2012
H Engineer:
JS Joo LG ELECTRONICS IN
Drawn by: 3G HANDSETS LAB.
JS Joo DEVELOPMENT GROUP 5
R&D CHK: TITLE:
DOC CTRL CHK: ANT SW to ANT
MFG ENGR CHK: U8380 Main-SPFY009060
Changed by: Date Changed: Time Changed: QA CHK: REV: Drawing Number:
SG Kang 2004, May 16 5:01:55 pm
1 2 2 3 4 5 6 7 8 8 9 10 11 12
8. CIRCUIT DIAGRAM
1 2 3 4 5 6 7 8 9 10 11 12
A A
Z1420
TMXU753
6 1
IN- IN+
5 2
SHIELD GND
4 3
OUT+ OUT-
C1441 C1442
2200p C1443 2200p
1.2p
B L1441 B
100nH
1608
C1453
VCCB RXQA
0.01u C1454
RXQB
0.01u C1451
C1422 C1423 RXIA
27p 27p 0.01u C1452
RXIB
0.01u R1760
R1401 R1410 R1440 C1421 MCLK
0 0 0
0
NA L1760
L1422 1uH
C1761
68nH
82p
C C
1608 C1760
0.01u
C1448 C1447
0.01u 0.01u
L1421 R1411
68nH 3.3K
R1430
1608 VCCB
C1403 C1404 C1414 C1425 C1424 10
2200p 22p
22p 0.01u 22p C1431
22p
C1444
A10
22p C1777 C1772 R1771 R1770
A1
A2
A3
A4
A5
A6
A7
A8
A9
C4
C5
C6
C7
VCXOCONT
330p
IFOUT
GNDMIX
VCCIF
IFINA
IFINB
VCCLF
QRA
QRB
IRA
IRB
CDQ
CDI
GNDLF
MCLK
47p 10K 1K
R1773
C1776 C1773 C1770 R1774
NA
3.3p 4.7p V1770 0.01u
B1 B10
IFOUTB VCCREF B1770 BBY58-02W NA
C1 C10 TSX-8A
VCCMIX XOIA
D1 D10
R1775
4
MIXINA XOIB 3 HOT2 GND2 C1778
NA
E1 E10
D F1
MIXINB VCCBUS
F10
2 GND1 HOT1 1 D
GNDBIAS IFLOA 13MHz 56p
G1 G10
C1401 C1402 GNDEME IFLOB R1772
H1 N1400 H10 10K
WCDMA_RX J1
RFIN
LZT-108-5323
GNDRFLO
J10
22p 22p GNDBYP RFLOOA
K1 C8
VCCRF XOOA
C3 D8
GNDIF XOOB
L1401 D3 E8
DATA GNDREF
NA E3 F8
L1411
F3
CLK GNDBUS
G8
IFLO
STROBE REFON
6.8nH G3 H8
GLNA GNDVCO IFLOBAR
GNDTUNE
VCCRFLO
GNDPHD
VCCVCO
VCCPHD
PHDOUT
RFLOOB
GNDPLL
VCCPLL
INDBYP
XOOON
C1750 22p
RFOUT
VTUNE
RXON
C1412 C1413 RFLO
1.2p 1.2p R1505
NA C1751 22p
K2
K3
K4
K5
K6
K7
K8
K9
K10
H3
H4
H5
H6
H7
RFLOBAR
5
4
6
XOOA
Z1400
O2
G3
O1
B7752 XOOB
G1
G2
IN
E E
1
2
3
C1407
22p R1740
VCCB
C1740 C1741 10
0.01u 22p
L1402
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