Table of Contents
Advertisement
6. CIRCUIT DIAGRAM
< 1-1-1-1_ANT_GSM_WCDMA >
ANT1 (GSM Quad / WCDMA B1, B2, B5, B8)
C1170
DNI
C1169
100p
C1167
C1168
1p
1.2n
C1108
WTR_PRX_LB2_IN
* G900 RX
* B8(G900) RX : B8 OPTION
ANT3 (GNSS)
LGE Internal Use Only
Rev_0.6
C1171 100p
SW1100
C1101
2.2n
C1100
100p
2
ANT
COMMON
1
G3
G4
3
4
L1100
L1101
L1143
C1172
15n
+VPWR
0.5p
DNI
DNI
( DGMS Guide )
MC-C00002-14 : ESD Protection Circuit
* B2 / B8 TRX(G900Rx)
TX_MODULE_TRX_2
TX_MODULE_TRX_1
* B1 TRX
* DNI : B8 option
FL1101
12n
C1109
33p
C1110
100p
C1111
100p
4
1
OUT
IN
G3
G2
G1
5
3
2
G900
TX_MODULE_TRX_4
L1110
C1178
DNI
* B5 TRX (G850RX)
DNI
942.5MHz
C1114
DNI
R1104
WTR_TX1_OUT
100p
B8_RX_IN
* B8(G900) RX : B8 OPTION
if your TxM GSM PA gain is not much greater than SKY77573 GSM PA gain. Can remove
GNSS_ELNA_EN
FL1106
EAM62633001
B9414
C1150
100p
C1175
L1133
5.6n
1
4
IN
OUT
1.8n
G1 G2 G3
2
3
5
L1128
L1129
DNI
DNI
LNA+Post Filter
RX_G1800
C1103
2.2n
6
7
RX_G1900
C1104
1.8n
8
L1108
DNI
9
0.5p
L1109
GND15
GND10
22
12
GND16
GND9
23
11
TRX1
GND8
24
10
GND17
GND7
25
9
TRX2
GND6
+VPWR
HRPF89165B
26
8
GND18
GND5
27
7
U1100
TRX3
GND4
28
6
GND19
VCC2
29
5
TRX4
VCC1
30
4
GND20
GND3
31
3
VBATT
GND2
32
2
GND21
GND1
C1113
C1112
33
1
C1115
4.7u
1n
100p
SPDT_SEL
PA0_R_1
PA0_R_0
ANT0_SW_SEL_0
ANT0_SW_SEL_3
ANT0_SW_SEL_2
ANT0_SW_SEL_1
For D370, D380 : B8 TRX & G900 RX
+2V85_VREG_L19
C1177
2.2u
L1132
5.6n
C1173
33p
2
FL1107
5
WTR_GNSS_RF_IN_1
RFIN
RFOUT
EAN62826801
SFMG2BAD001
C1152
1p
- 199 -
GSM1800_OUT
GND3
4
GND5
GND2
3
FL1100
SFRG42DB002
GND6
GND1
* G1800, G1900 RX
EAM62792801
2
L1105 1.8n
C1174
3.3p
L1106
2.7n
GSM1900_OUT
GSM1800/1900_IN
WTR_PRX_MB3_IN
1
L1107
DNI
1842.50MHz/1960.00MHz
DNI
C1106
Place matching components near WTR
TXM LOGIC(SPDT OFF)
SPDT_SEL
ANT0_SW_SEL0
ANT0_SW_SEL1
ANT0_SW_SEL2
LB_HPM
L
L
H
L
LB_MPM
L
L
H
L
GSM_LB
LB_LPM
L
L
H
L
LB_ULPM
L
L
H
L
HB_HPM
L
H
L
L
HB_MPM
L
H
L
L
GSM_HB
HB_LPM
L
H
L
L
HB_ULPM
L
H
L
L
TRX1
H
L
L
L
B2_TRX
B1_TRX
TRX2
H
L
L
H
TRX3
H
L
H
L
G900_RX
TRX4
H
H
B5_TRX
H
L
G1900_RX
RX1
H
H
H
H
RX2
H
H
G1800_RX
H
H
GND CONTACT
Copyright © 2014 LG Electronics. Inc. All right reserved.
6. CIRCUIT DIAGRAM
ANT0_SW_SEL3
PA0_R0
PA0_R1
L
L
L
L
L
H
L
H
L
L
H
H
L
L
L
L
L
H
L
H
L
L
H
H
L
-
-
L
-
-
L
-
-
L
-
-
L
-
-
H
-
-
Only for training and service purposes
Advertisement
Table of Contents
Troubleshooting
