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Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
22n
R1514
100n
C1510
C1504
100n
C1505
100n
C1506
100n
C1507
100n
C1508
100n
100n
C1511
100n
C1512
R1515
0
C1517
100p
+1V8_VREG_S3A
+2V05_VREG_L15
1u
C1500
C1501
4.7u
100n
C1515
C1514
100n
C1516
100n
C1522
100n
C1518
100n
C1519
100n
C1524
10u
C1502
100p
DNI
C1543
TOL=0.01
R1516
4.75K
100n
C1520
C1521
100n
C1523
100n
DNI
C1509
C1513
DNI
+1V3_VREG_L4
DNI
C1503
C1541
1n
U1500
WTR1625L
34
57
22
11
14
38
72
31
25
149
100
116
75
84
66
45
132
112
30
29
32
33
50
91
37
71
164
122
156
118
55
140
94
113
2
13
12
4
1
20
28
7
16
15
5
19
18
17
9
27
43
51
65
73
92
102
117
121
130
155
139
138
146
154
163
153
162
133
147
157114
129
126
62
80
98
54
136
115135
137
48
78
90
79
74
93
52 59
103
158
148
124
105
95
109
131
123
104
141
85
67
53
60
68
61
86
76
97
107
108
99
127
161
152
160
151
125
142
159
134
150
44
36
106
119
120
128
143
144
145
110
101
111
96
77
87
47
40
63
70
88
69
49
46
23
3
10
39
24
6
21
81
41
42
64
26
8
35
58
82
83
56
89
GND1 GND2 GND3 GND4 GND5 GND6 GND7 GND8 GND9 GND10 GND11 GND12 GND13 GND14 GND15 GND16 GND17 GND18 GND19 GND20 GND21 GND22 GND23 GND24 GND25 GND26 GND27 GND2
8
GND29 GND3
0
GND3
1
GND3
2
GND3
3
GND3
4
GND3
5
GND3
6
GND3
7
GND3
8
GND3
9
GND4
0
GNSS_RF_INP
GNSS_RF_INM
GND4
1
GND4
2
GND4
3
GND4
4
GND4
5
TX_BB_IP
TX_BB_IM
TX_BB_QP
TX_BB_QM
DAC_REF
PRX_BB_IP
PRX_BB_IM
PRX_BB_QP
PRX_BB_QM
DRX_BB_IP
DRX_BB_IM
DRX_BB_QP
DRX_BB_QM
GNSS_BB_IP
GNSS_BB_IM
GNSS_BB_QP
GNSS_BB_QM
GND64
GP_DATA1
GP_DATA0
XO_IN
ADC_IN
SSBI_PRX_DRX
SSBI_TX_GNSS
GND4
6
GND4
7
GND4
8
VDD_DI
O
VDD_RF1_G_BB
VDD_RF1_G_LNA
VDD_RF1_G_PLL VDD_RF1_G_VCO
VDD_RF1_P_PLL
VDD_RF1_P_VCO
VDD_RF1_S_PLL VDD_RF1_S_VCO
VDD_RF1_T_D
A
VDD_RF1_T_LO
VDD_RF1_T_SYN
VDD_RF1_T_UPC
VDD_RF2_D_B
B
VDD_RF2_P_B
B
VDD_RF2_P_VCO VDD_RF2_S_VCO
VDD_RF2_T_B
B
VDD_RF2_T_DA
VDD_RF2_T_PLL
VDD_RF2_T_VCO
VDD_RF2_X
O
GND4
9
TX_LB1_OUT
TX_LB2_OUT
TX_LB3_OUT
TX_LB4_OUT
TX_MB1_OUT
TX_MB2_OUT
TX_MB3_OUT
TX_MB4_OUT
TX_HB1_OUT
TX_HB2_OUT
PDET_RFFB
PRX_LB1_IN
PRX_LB2_IN
PRX_LB3_IN
PRX_LB4_IN
PRX_MB1_IN
PRX_MB2_IN
PRX_MB3_IN
PRX_HB1_IN
PRX_HB2_IN
PRX_HB3_IN
PRX_HMB4_IN
DRX_LB1_IN
DRX_LB2_IN
DRX_LB3_IN
DRX_LB4_IN
DRX_MB1_IN
DRX_MB2_IN
DRX_MB3_IN
DRX_HB1_IN
DRX_HB2_IN
DRX_HB3_IN
DRX_HMB4_IN
GND50
GND51
GND52
GND53
GND54
GND55
GND56
GND57
RTUNE
DNC
PRX_LB_CA_OUT
PRX_MB_CA_IN
PRX_HB_CA_OUT
DRX_LB_CA_OUT
DRX_MB_CA_IN
DRX_HB_CA_OUT
GND58
GND59
GND60
GND61
GND62
GND63
VDD_RF2_FBR
X
VDD_RF2_PRX
VDD_RF1_T_VCO
VDD_RF1_P_HB_LO
VDD_RF1_D_L
B
VDD_RF1_P_LB VDD_RF1_D_LOM
VDD_RF1_D_LB_LO
VDD_RF1_D_M
B
VDD_RF1_D_H
B
VDD_RF1_P_HMB_LO
VDD_RF1_P_HM
B
WTR0_XO_IN
WTR0_TXBB_I_P
WTR0_GNSSBB_Q_P
WTR0_GNSSBB_I_P
WTR0_GNSSBB_I_N
WTR0_GNSSBB_Q_N
WTR0_PRXBB_I_P
WTR0_PRXBB_Q_N
WTR0_PRXBB_Q_P
WTR0_DRXBB_I_N
WTR0_DRXBB_I_P
WTR0_DRXBB_Q_N
WTR0_DRXBB_Q_P
WTR0_PRXBB_I_N
WTR0_TXBB_I_N
WTR0_TXBB_Q_N
WTR0_TXBB_Q_P
WTR0_GPDATA_1
WTR0_GPDATA_0
WTR0_SSBI_TX_GNSS
WTR0_SSBI_PRX_DRX
WTR0_DAC_IREF
WTR_G850_B5_PRX_LB3
WTR_GSM_HB_PRX_MB2
WTR_B17_B20_PRX_LB1
WTR_G900_B8_PRX_LB2
WTR_B1_PRX_HMB4
WTR_B5_B8_TX_LB1
WTR_GSM_LB_TX_LB2
WTR_GSM_HB_TX_MB2
WTR_B1_B2_TX_MB3
WTR_B3_B4_TX_MB4
WTR_B3_B4_PRX_MB1
GNSS_IN_N
GNSS_IN_P
WTR_B5_DRX_LB3
WTR_B20_DRX_LB2
WTR_B8_DRX_LB1
WTR_B40_DRX_HB1
WTR_B1_B4_DRX_MB1
WTR_B3_DRX_MB2
WTR_B7_DRX_HB3
WTR_PDET_IN
WTR_B40_TX_HB2
WTR_B40_PRX_HB1
WTR_B7_PRX_HB3
WTR_B7_TX_HB1
WTR_B2_PRX_MB3
WTR_B2_DRX_MB3
WTR_B17_B20_TX_LB3
WTR_B28_PRX_LB4
WTR_B17_B28_DRX_LB4
WTR_B28_TX_LB4
NOTE2
22nH inductor helps spurs for B3+B5 CA
93, 7
4
52, 5
9
57
14
38
25
136
13
5
11
5
14
9
48
78
103
147 116
157
62
80
129
79
CHANGE R1507 22nH, C1510 DNI
NOTE1
DOCUMENT NO: 80-NA805-44
CHANGE R1508 8.2nH
8.2nH inductor helps spurs for B4+B2 CA
DOCUMENT NO: 80-NA805-42
90
126
100
NOTE1
NOTE1
NOTE2
CAUTION: YOU MUST CHECK & MODIFY RF PORT AND GPIO ON YOUR SCHEMATICS.
Rev_0.4
< 1-3-5-1_RFIC_CA_nCA_WTR1625 >
REV10