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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
Figure 3.3.2 Band SW Logic Table
Figure 3.3.3 FEM CIRCUIT DIAGRAM
3. TECHNICAL BRIEF
1. RX1, RX2, RX3, and RX4 are broadband receive ports and each supports the EGSM, GSM850, PCS, and DCS bands.
35/136
56p
C366
U304
12
11 01 9 8 7
13
6
14
5
15
4
16
3
17
2
81
1
91 02 12 22 32
G
UL
S_
D
N
G
P
M
A
R
V
EL
B
A
N
E_
XT
0L
RT
C
P
G
1L
RT
C
P
G
GND1
TT
A
B
V
GND2
GPCTRL2
RFIN_LB
GND9
GND3
GND8
RFIN_HB
ANT
GND4
RX4
5
D
N
G
6
D
N
G
7
D
N
G
1
X
R
2
X
R
RX3
C332
100u
22p
C367
3.3n
L302
L303
3.3n
33p
C331
1n
L301
VBAT
C341
1p
R319
1K
C344
10n
39p
C345
DNI
C348
DCS_PCS_OUT
GSM_OUT
TX_EN
BS1
BS2
VLOGIC
TX_RAMP
DCS
PCS
GSM850
EGSM
TX ENABLE
Gp Ctrl2
Gp Ctrl1
Gp Ctrl0
TX Module Mode
0
0
0
0
Low Power Mode (Standby)
0
1
0
0
RX1
0
0
1
0
RX2
0
0
1
1
RX
0
0
0
1
RX4
1
0
1
0
GSM850/900 TXMode
1
0
1
1
DCS1800/PCS1900 TX Mode