LG GD510 - Web Browsing and Internet Connectivity

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. Technical brief
GD510 Operational Description Revision A
LG Electronics 50/113 LGE Property
3.21. Front End Module control
Implemented in the S-Gold3 (FL600) are two outputs which are FE1, FE2 for direct control of front end
modules with two logic input pins to select RX and TX mode as well as low and high band operation.
FEM need 2V85_VRF supply.
Table 9 FEM Control Logic
tvklG {GXno¡G
{GYno¡G yGXno¡G yGYno¡G
}kkG vuG
vuG vuG vuG
}jXG vmmG vuG vmmG vuG
}jYG vuG vuG vmmG vmmG
G
G
G
G
G
G
G
Figure 29 FEM schematic
z
H
M0
0
9
1,0081,009
,
05
8
410M0111MGD
106LF
0251
9101 81 6
18
117
96
5
214
3
312
4
11
17
ANT
1XR_0
5
8MS
G 1
CV
2X
R
_05
8MS
G 2CV
1XR_009MSG 2XR_009MSG DDV
1X
R
_00
8
1MS
G
2XR_0081
MS
G 1
D
NG
1XR_0091MSG 2DNG 2X
R_
0
091MSG
3
D
NG
4DNG
XT_0091_0081MSG 5DNG
XT_009_058MSG 6DNG
0
C656
IND 896C
0
C625
0.5p
C697
C608 22p
C613
100p 100p
C632
A
NT601
ANTENNA_PAD
ANT602
ANTENNA_PAD
C635
39p
C636
100n
0
9
96
C
DNIC643
L608
100n
VRF_2V85
SW601
GRS302-2S-H22-E3000
G2
ANT RF
G1
FE1
FE2