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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
C1080
6.8n
4.7u
C1036
R1001
DNI
1.2n
L1019
FL1007
1950MHz, 2140MHz
9
5
8
4
7
2
3
6
1
RX
ANT
TX
GND1
GND4
GND2
GND5
GND3
GND6
C1105
2.2n
C1095
1.8p
C1083
1.8p
8.2n
L1038
C1101
100p
33p
C1006
C1008
33p
C1075
3.3n
DNI
L1011
33p
C1039
DNI
L1008
33p
C1037
DNI
L1005
33p
C1015
33p
C1007
DNI
L1002
1.2n
L1025
881.5MHz,942.5MHz
FL1000
10
3
5
2
8
1
9
6
7
4
IN_881_5
OUT_881_5_1
OUT_881_5_2
OUT_942_5_1
IN_942_5
OUT_942_5_2
GND1
GND3
GND2
GND4
C1030
0.1u
SW1000
4
2
1
3
1
G
A
C
2
G
L1024
10n
1950MHz
FL1005
5 2
4
1
3
G3
IN
OUT
G1
G2
5.1
R1011
C1053
0.1u
C1061
0.1u
C1028
0.1u
C1009
10n
5.6n
L1027
ANT1002
VREG_RF_2.7V
DNI
C1050
C1096
100p
ANT1003
C1029
22p
C1027
22p
C1026
0.1u
p0
01
78
01
C
68
01
C
p0
01
p0
01
48
01
C
C1104
DNI
C1019
DNI
VDD_RX
10u
C1071
VBATT
DNI
C1020
L1021
2.2p
1n
C1091
L1037
DNI
C1088
33n
DNI
L1036
DNI
L1022
C1011
10n
C1022
DNI
2140MHz
FL1002
4
5
1
3
2
G1 O1
IN
G2 O2
100n
L1030
U1002
51
8
7
9
6
10
5
11
4
12
3
13
2
14
1
RFIN_LOW
RFOUT_LOW
VMODE
GND3
VBP
VCC2
VCC1
GND2
VEN_LOW
RFOUT_HI
VEN_HI
GND1
RFIN_HI
CPL
D
N
G
P
FL1004
897.5 MHz,942.5 MHz
9
5
8
4
7
2
3
6
1
RX1
ANT
TX
GND1
GND4
GND2
RX2
GND3
GND6
C1018
39p
C1099
18p
33p
C1074
L1017
1.2n
VDD_RX
L1015
6.8n
C1076
DNI
19
90
01
R
C1070
330p
C1069
1n
U1003
3
2
5
4
1
NI
_F
R
FIL_OUT
VDD
S_D
GND
C1081
3.9p
DNI
C1073
C1092
4.7n
2n
L1016
C1045
1n
u0
1
84
01
C
L1034
3.3n
C1082
3p
3.9p
C1072
C1049
1n
R1022
0
3.9p
L1040
C1004
15n
R1000
100p
DNI
C1031
12n
L1013
C1078
33p
ANT1000
C1032
DNI
C1051
33p
L1028
6.8n
33p
L1023
C1046
1n
L1042
DNI
C1042
47p
19
80
01
R
2.2p
C1003
2.2p
C1010
1.2p
C1094
p0
01
86
01
C
C1077
3.9n
C1055
0.1u
C1057
0.1u
C1054
4.7u
4.7u
C1056
22n
L1009
C1021
4.7p
C1058
0.1u
C1059
0.1u
C1034
1n
C1025
22p
R1013
12K
L1000
100n
C1014
68p
76
01
C
u1.
0
VREG_MSMP_2.6V
C1012
33p
R1015
DNI
ANT1001
R1020
1K
R1012
5.1
C1089
DNI
L1007
18n
C1016
4.7p
C1013
1n
5.6n
C1033
C1052
6.8n
VREG_RF_2.7V
R1021
0
5.6n
C1038
U1000
3
2
9
2
8
2
5
3
4
3
9
6
62
61
60
54
43
36
37
38
27
68
25
52
21
42
8
7
45
1
44
53
47
22
46
10
6
49
4
48
3
51
67
50
19
39
40
18
17
41
16
15
33
32
13
31
14
30
12
11
59
58
9
56
24
5
57
55
65
66
20
63
2
64
26
RF_ON
TX_IP
TCXO
TX_IN
SBDT
TX_QP
TX_QN
LB_RF_OUT1
LB_RF_OUT2
VTUNE1
VTUNE2
HB_RF_OUT1
VTUNE_GPS
HB_RF_OUT2
HB_RF_OUT3
PRX_QP
PRX_QN
WPRXLBP
PRX_IP
WPRXLBN
PRX_IN
WPRXHBP
WPRXHBN
DRX_QP
DRX_QN
WDRXLB
DRX_IP
DRX_IN
WDRXHB1
WDRXHB2
NC
GCELL_INP
DAC_IREF
GCELL_INN
VDDA1_1
EGSM_INP
VDDA1_2
EGSM_INN
VDDA1_3
VDDA1_4
DCS_INP
VDDA1_5
DCS_INN
VDDA1_6
GPCS_INP
VDDA2_1
GPCS_INN
VDDA2_2
VDDA2_3
GPS_IN
VDDA2_4
PDET_IN
VDDA2_5
TX_RBIAS
VDDA2_6
WPRXSE1
VDDA2_7
WPRXSE2
VDDA2_8
VDDA2_9
VDDA2_10
VDDA2_11
VDDA2_12
D
N
G
P
T
U
O_
2
E
S
X
R
P
W
T
U
O_
1
E
S
X
R
P
W
P
NI
_
X
M_
B
W
M
NI
_
X
M_
B
W
M
D
D
V
C1040
6.8n
C1001
2.7n
K1
41
01
R
1842.5MHz,1960MHz
FL1001
10
3
5
2
8
1
9
6
7
4
IN_1842_5
OUT_1842_5_1
OUT_1842_5_2
OUT_1960_1
IN_1960
OUT_1960_2
GND1
GND3
GND2
GND4
C1106
DNI
C1044
33p
C1023
22p
C1024
0.1u
C1060
0.1u
C1063
0.1u
18n
L1004
C1017
33p
VREG_SMPS_2.1V
75
R1006
VBATT
C1079
1n
0.5p
L1001
3.3n
L1018
FL1003
897.5 MHz
5 3 2
4
1
IN
OUT
G1
G2
G3
03
1
50
01
R
47
R1003
03
1
40
01
R
10
R1010
2.2
R1007
58
01
C
p0
01
L1035
33p
L1014
100p
DNI
L1012
0.5p
L1010
82n
L1006
L1003
82n
L1029
DNI
R1002
2.2K
U1001
31
30
29
44
43
42
41
40
39
38
73
63
53
16
15
41
31
21
11
01
34
33
32
17
9
18
8
19
7
20
6
21
5
22
4
32
3
42
2
52
62
72
82
1 DCS_PCS_IN
11
D
N
G
01
D
N
G
9
D
N
G
8
D
N
G
GND1
7
D
N
G
GSM_IN
6
D
N
G
VAPC
GND5
VBATT
GND4
BS2
GND3
BS1
GND2
_TXEN
ANT
E
D
O
M
WCDMA3
PGND4
PGND5
PGND6
P
M
ET
4
X
R
3
X
R
2
X
R
1
X
R
WCDMA1
WCDMA2
7
D
N
G
P
8
D
N
G
P
9
D
N
G
P
PGND10
PGND11
PGND12
PGND13
PGND14
PGND15
PGND16
PGND1
PGND2
PGND3
L1026
DNI
C1064
22p
12
R1019
33p
C1090
1575.42 MHz
FL1006
5
2
4
1
3
G3
IN
OUT
G1 G2
L1041
DNI
81
01
R
00
1
ANT1004
L1032
0.75p
DNI
L1033
L1039
3p
C1097
33p
R1016
62
00
1
71
01
R
C1043
1n
C1065
100p
C1066
0.1u
74
01
C
n0
1
C1005
68p
C1100
0.1u
RTR6285_SSBI
GPS_MODE
RX0_Q_P
RX0_Q_M
RX0_I_M
RX0_I_P
TX_Q_M
TX_Q_P
TX_I_M
TX_I_P
DAC_REF
PA_R0
PA_ON0
PA_ON1
TX_ON
GSM_PA_RAMP
TCXO_RTR_19.2MHZ
ANT_SEL3
ANT_SEL0
ANT_SEL2
ANT_SEL1
GND
RX1_Q_P
RX1_Q_M
RX1_I_P
RX1_I_M
VREG_SMPS_2.1V|VSNS_RF_SMPS
VSNS_RF_SMPS
PA_R1
RX_WCDMA_2100_LNA_OUT
RX_WCDMA_2100_LNA_OUT
RX_PCS_P
RX_PCS_P
RX_DCS_P
RX_DCS_P
RX_GSM_900_P
RX_GSM_900_P
RX_GSM_850_P
RX_GSM_850_P
RX_WCDMA_1900_LNA_OUT
RX_WCDMA_1900_LNA_OUT
WCDMA_900_TX_OUT
WCDMA_900_TX_OUT
WCDMA_900_RTX
WCDMA_900_RTX
P
NI
_
XI
M_
00
12
B
W
WB2100_MIX_INP
M
NI
_
XI
M_
00
12
B
W
WB2100_MIX_INM
RX_WCDMA_900_M
RX_WCDMA_900_M
RX_WCDMA_900_P
RX_WCDMA_900_P
PDET_IN
PDET_IN
RX_WCDMA_2100
RX_WCDMA_2100
RX_GSM_850_M
RX_GSM_850_M
RX_GSM_900_M
RX_GSM_900_M
RX_DCS_M
RX_DCS_M
RX_PCS_M
RX_PCS_M
WCDMA_2100_RTX
WCDMA_2100_RTX
GSM_TX
GSM_TX
DCS_PCS_TX
DCS_PCS_TX
GPS_IN
GPS_IN
WCDMA_2100_TX_OUT
WCDMA_2100_TX_OUT
0.5mm
1mm
80
61
HIGH
HIGH
Near to 4 Pin
0603
Near to 12 Pin
Near to 12 Pin
Near To RTR
Near To LNA
50
01
0603
0603
0603
0603
0603
0603
0603
0603
W1700
LOW
50
01
0603
WCDMA RX 2100 LNA Circuit
W2100 RX(2110 - 2170 MHz)
LNA for the GPS
WCDMA Triple
W900
W2100
W2100 TX(1920 - 1980 MHz)
BAND 1/2
DCS(1710-1785 MHz)
PCS(1850-1910 MHz)
LOW
HIGH
LOW
GSM900(880-915MHz)
HIGH
HIGH
HIGH
DCS1800/PCS1900 TX
+2.7V
GSM850/GSM900 TX
PCS1900 RX
HIGH
1%
GSM850(824-849MHz)
+2.1V
HIGH
HIGH
LOW
LOW
LOW
LOW
HIGH
HIGH
7dB
HIGH
HIGH
LOW (X)
W900(W850)
EUSY0344001
LOW (X)
LOW (X)
GSM(869-894 MHz)
LOW (X)
LOW
GSM(925-960 MHz)
PCS(1930-1990 MHz)
DCS(1805-1880 MHz)
LOW
11dB
2mm
LOW
LOW
LOW
LOW
LOW
HIGH
HIGH
LOW
ANTENNA SWITCH MODULE LOGIC(SKY77544)
LOW
ANT_SEL3
0.5mm
VDDA2 : Pin 1,7,8,21,25,27,37,43,54,60,61,62 = +2.1V VDC
DCS1800 RX
GSM900 RX
ANT_SEL2
ANT_SEL1
ANT_SEL0
GSM850 RX
LOW
GSM Quad
VDDA1 : Pin 3,4,6,10,22,53 = +2.7V VDC
W2100
0603
0603
80
61
Band 8
BAND2(2520) : ACMD-7407
SDMY0001901
BAND8(2520) : B7953 (SDMY0002801)
W900 TX(880 - 915 MHz)
Band 1
SDMY0002801
BAND1(2520):SAYP1G95AA0B00
W900 RX(925 - 960 MHz)
0603
0603
0603
(RX_WCDMA_1900)
L
K
J
I
H
G
F
E
D
C
B
A
12
11
10
9
8
7
6
5
4
3
2
1
L
K
J
I
H
G
F
E
D
C
B
A
12
11
10
9
8
7
6
5
4
3
2
1
7. CIRCUIT DIAGRAM