- 61 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
LG Electronics
57/115
LGE Property
3.20 Front End Module control
Implemented in the S-Gold3 (FL500) are two outputs which are VC1, VC2 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..
Table 8 FEM Control Logic
Figure 27 FEM schematic
z
H
M0
88
1,
5.
63
8
10
6L
F
02
91
31
11
81
51
8
41
7
21
6
9
5
4
01
3
61
2
1
17
ANT
1
X
R0
58
M
S
G
2
X
R0
58
M
S
G
4
D
N
G
1
X
R0
09
M
S
G
2
C
V
2
X
R0
09
M
S
G
1
X
R0
08
1
M
S
G
1
D
N
G
2
X
R0
08
1
M
S
G
2
D
N
G
1
X
R0
09
1
M
S
G
1
C
V
2
X
R0
09
1
M
S
G
XT
00
9_
05
8
M
S
G
5
D
N
G
XT
00
91
_0
08
1
M
S
G
3
D
N
G
1
C
N
2
C
N
CN601
2
6
5
4
3
1
NI 1
D
N
G
2
D
N
G
3
D
N
G
4
D
N
G TU
O
100n
L601
8.2p
C637
22p
C604
100
R606
100
R607
C607
47pF
47pF
C610
DNI
C612
ANT601
12n
L608
VC1
VC2
(FROM Transceiver)
(FROM Transceiver)
CI:$0.05(CMOS->PIN)
LG Electronics
57/115
LGE Property
3.20 Front End Module control
Implemented in the S-Gold3 (FL500) are two outputs which are VC1, VC2 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..
Table 8 FEM Control Logic
Figure 27 FEM schematic
Содержание GT350
Страница 1: ...Service Manual Model GT350 Internal Use Only Service Manual GT350 Date May 2010 Issue 1 0 ...
Страница 117: ... 118 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 127: ... 128 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 131: ... 132 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 151: ... 152 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...