- 201 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
7. CIRCUIT DIAGRAM
DNI
C128
1n
L174
1n
L175
L167
22n
C199
0.5p
1K
R100
C109
1u
C193
2.2u
U101
16
15
14
13
12
11
10
17
9
8
7
6
4
3
28
1
44
43
42
41
40
39
38
37
36
35
32
33
34
24
23
22
29
30
31
18
21
25
20
26
19
27
5
2 GND2
GND5
GND1
3
TRX1
AN
T
TRX2
GND12
TRX3
VRAMP
PGND3
PGND2
PGND1
GND10
TRX4
GND11
PGND6
PGND5
PGND4
PGND7 PGND8 PGND9
PGND10
PGND11
PGND12
PGND13
PGND14
PGND15
PGND16
GND1
GND14
GND3
GND4
GND6
GND7
GND8
TX_HB_I
N
TXEN
TX_LB_I
N
BS2 BS1 VBAT
T
VC
C
GND9
MODE
C120
22u
C197
100p
L178
1.8n
DNI
L171
R110
1K
R111
1K
R112
1K
C112
1u
4.7n
L180
DNI
C134
SW101
4
3
2
1
ANT
COMMON
G3
G4
L181
4.7n
R102
1K
L183
4.7n
100p
C135
L107
33n
L110
33n
C129
100p
1n
C118
0.1u
C152
C160
2.2u
C151
DNI
C131
1u
L103
3.9n
C10
8
1u
R106
215K
1u
C132
R105
39K
8.2n
L108
26MHz
X100
1XXA26000FTA
VCONT
1
VCC
4
GND
2
OUT
3
C157
0.1u
C133
39p
U103
PGND
11
VEN
5
RF_OUT
9
RF_IN
2
VBAT
1
VCC
10
GND
7
VMODE1
3
CPL_IN
8
VMODE0
4
CPL_OUT
6
C169
39p
L119
4.7n
C125
0.1u
5.6p
C161
DNI
C158
1u
C126
1n
C122
C115
1n
1u
C107
C198
0.5p
FL103
7
5
8
4
9
2
3
1
6
ANT
RX1
TX
GND1
GND5
GND2
RX2
GND3
GND4
U102
6
4
8
3
7
10
1
2
9
5
11
PGND
VEN
RF_OUT
RF_IN
VBAT
VCC
GND
VMODE1
CPL_IN
VMODE0
CPL_OUT
L173
1.2n
FL100
GSM1900_Bal_OUT2
9
GSM1900_Bal_OUT1
8
GSM1800_Bal_OUT2
7
GSM1800_Bal_OUT1
6
GND5
10
GND4
5
GSM1800/1900_IN
1
GND1
2
GND2
3
GND3
4
1n
C142
L182
4.7n
L105
5.6n
L179
1.8n
DNI
C110
100K
PT100
C119
6.8p
U100
1
B
1
C2
D1
E2
F1
G2
H1
J2
K1
L2
M1
N2
P1
R2
T1
E18
D17
C18
B17
B13
A12
B11
A10
B9
A8
B7
A6
B5
A4
B3
A2
U16
V17
V15
U14
V13
U12
V11
U10
V9
U8
V7
U6
V5
U4
V3
U2
A1
4
B15
A1
6
F1
7
G1
8
H17
J1
8
K1
7
L18
M1
7
N18
P1
7
R18
T1
7
U18
GND4
NC
1
NC
2
NC
3
VDD_28a VSUP3
GND5
TX_LB
1
TX_LB
2
TX_HB
1
TX_HB
2
TX_HB
3
GND6 GND7 GND8
LNA1N
LNA1P
LNA2N
LNA2P
LNA3N
LNA3P
LNA4N
LNA4P
LNA5N
LNA5P
LNA6N
LNA6P
LNA7N
LNA7P
LNA8N
LNA8P
REFCLK1
REFCLK2
REFCLK3
VDDXO
NC4
XO2
XO1/REFIN
VTUNE
CLK_MODE
VSUP2b
GND1
PDET
TX_IN
TX_IP
TX_QN
TX_QP
GND3
RX_BBIP RX_BBIN RX_BBQP RX_BBQN
VSUP1 VDD_1
8
VSUP2a VDD_28b
CL
K
DATA0 DATA1
VINT
EN
GND2
PGND
DNI
C111
3.9n
L124
L125
100n
1.5n
L177
L101
5.6n
1.5n
L176
1p
C105
L115
DNI
DNI
C154
C153
5.6p
DNI
C155
L116
6.2n
SW100
G1
ANT
G2
10p
C100
L114
100p
10p
C101
10p
C103
C196
1.2n
L170
22n
DNI
L148
DNI
L113
C162
DNI
100p
L111
L172
1.2n
L120
100p
C146
33p
L166
8.2n
C164
4.7n
36
R109
27
R108
27
R107
22n
L112
49.9
R104
C141
0.1u
2.2u
C143
C159
1n
10p
C106
FL101
4
3
2
1
5
10
6
7
8
9
GSM900_Bal_OUT2
GSM900_Bal_OUT1
GSM850_Bal_OUT2
GSM850_Bal_OUT1
GND5
GND4
GSM850/900_IN
GND1
GND2
GND3
C163
3.3p
C195
39p
L102
3.9n
FL102
7
5
8
4
9
2
3
1
6
ANT
RX1
TX
GND1
GND5
GND2
RX2
GND3
GND4
L169
2.4n
DNI
L122
W850_W900_TRX
W850_W900_TRX
+1V8_VIO_MT
K
RX_W850_W900_INN
RX_W850_W900_INN
PRX_GSM850_INP
PRX_GSM850_INP
PRX_GSM900_INN
PRX_GSM900_INN
PRX_GSM850_INN
PRX_GSM850_INN
PRX_GSM900_INP
PRX_GSM900_INP
MAIN_CLK_26MHz
MAIN_CLK_26MHz
PDET
PDET
PRX_GSM1900_INP
PRX_GSM1900_INP
PRX_GSM1900_INN
PRX_GSM1900_INN
PRX_GSM1800_INP
PRX_GSM1800_INP
PRX_GSM1800_INN
PRX_GSM1800_INN
RX_W850_W900_INP
RX_W850_W900_INP
+2V85_VRF_MTK
+2V85_VRF_MTK
+2V8_VTCXO_MTK
+2V8_VTCXO_MTK
+2V8_VTCXO_MTK
VBATT
VBATT
VBATT
PA_ON_W850_W900
RX_W1900_W2100_INP
RX_W1900_W2100_INP
W1900_2100_T
R
X
W1900_2100_TRX
RX_W1900_W2100_INN
RX_W1900_W2100_INN
ANT_SEL0
ANT_SEL1
ANT_SEL2
PA_R1
PA_R1
PA_R0
PA_R0
+3V4_VWPAM_MTK
+3V4_VWPAM_MTK
W1900_2100_TX_IN
W1900_2100_TX_IN
W850_W900_TX_IN
W850_W900_TX_IN
DCS_PCS_T
X
DCS_PCS_TX
GSM850_GSM900_T
X
GSM850_GSM900_TX
GSM_PA_EN
RF_TEMP_ADC
SYSCLK
AFC
BSI1_CL
K
BSI1_CS
1
BSI1_DATA
BSI1_CS
0
UMTSRX_I
P
UMTSRX_I
N
UMTSRX_Q
P
UMTSRX_Q
N
GSM_UMTSTX_IN
GSM_UMTSTX_IP
GSM_UMTSTX_QN
GSM_UMTSTX_QP
GSM_PA_RAMP
PA_ON_W1900_2100
+1V8_VRF_MTK
B8
B1
B8
B1
0 : Min -0.1V / Max 0.3V
0
0
1
0
0
1
PA_EN
1
1
1
0
ANT_SEL2
ANT_SEL1
0
0
1
0
0
0
TX_HB
TX_LB
Stand-by
ANT_SEL0
Mode
1 : Min 1.2 V / Max 2.9v
TRX2
1
0
0
1
0
1
0
0
1
0
1
0
TRX3
TRX4
TRX1
GSM1800/1900 TX
GSM1800/1900 RX
GSM850/900 TX
3G B5, B8 TRX
3G B1, B2 TRX
GSM850/900 RX
External Clock for main RF
2mm
ASM & GSM-Quad
B1 W2100 TRX(W1900)
W850_W900 TX
WCDMA Triple
B8 W850 TRX (W900)
W1900_W2100 TX
26MHz
26MHz
External Clock for BT / WIFI
7. CIRCUIT DIAGRAM