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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
LGE Internal Use Only
Figure 3-13-1 GM200 RF circuits
)
5
6
0
_
O
I
P
G
(
)
6
6
0
_
O
I
P
G
(
)
3
7
0
_
O
I
P
G
(
)
0
7
0
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(
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0
6
0
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(
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4
7
0
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(
)
2
7
0
_
O
I
P
G
(
C530
3
0
5
T
N
A
34
35
PGND5
PGND6
36
11
RX1
RX2
12
13
RX3
RX4
14
N
E
_
X
T
4
30
VBATT
C
I
G
O
L
V
2
3
P
M
A
R
V
5.6p
4
1
D
N
G
GND15
25
26
GND16
28
GND17
2
D
N
G
7
8
3
D
N
G
4
D
N
G
9
10
GND5
GND6
15
16
GND7
8
D
N
G
8
1
9
1
9
D
N
G
27
GSM_IN
31
PGND1
PGND2
32
33
PGND3
PGND4
2
0
5
U
1
3
5
7
7
Y
K
S
1
0
2
5
0
0
0
H
R
M
S
T
N
A
7
1
1
S
B
5
2
S
B
6
DCS_PCS_IN
29
1
GND1
0
2
0
1
D
N
G
1
1
D
N
G
1
2
2
2
2
1
D
N
G
3
1
D
N
G
3
2
4
2
L505
5.6nH
10p
C528
p
9
3
1
1
5
C
6
5
2
0
5
T
N
A
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1
.
0
5
0
5
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5
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C
C524
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3
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3
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27p
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7
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2
8
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3
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5
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p
7
4
p
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1
1
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p
2
2
1
2
5
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10p
C
533
C534
10p
u
1
.
0
1
0
5
T
N
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8
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C
1
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5
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3
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-
2
2
H
-
S
2
-
2
0
3
S
R
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1
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3
6
0
0
0
Y
W
N
E
ANT
G1
G2
RF
9
1
5
C
p
0
0
1
1
O
D
L
V
5
1
5
C
0
2
5
C
p
2
2
p
0
0
1
1
O
D
L
V
22p
C531
DNI
R512
100p
C522
I
N
D
1
0
5
R
p
7
4
1
1
5
R
0
0
F
0
N
C
M
1
8
8
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W
A
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1
D
N
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2
3
2
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N
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5
3
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G
4
D
N
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0
1
5
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1
8
8
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N
I
4
5
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2
4
9
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N
I
1
1
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5
_
1
8
8
_
T
U
O
7
6
2
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5
_
1
8
8
_
T
U
O
1
_
5
_
2
4
9
_
T
U
O
9
8
2
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5
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2
4
9
_
T
U
O
2
0
8
1
0
0
0
B
S
F
S
2
0
5
L
F
K
1
7
0
5
R
u
1
0
.
0
0
1
5
C
u
1
.
0
4
0
5
C
n
0
2
2
9
0
5
C
C529
Q
B
B
_
C
C
V
4
2
E
F
_
C
C
V
1
7
1
F
E
R
_
C
C
V
12
VCC_TXVCO
13
VDD
15
VLDO1
16
VLDO2
VLDO3
9
5.6p
RX1800
28
27
RX1800B
RX1900
26
RX1900B
25
RX850
32
31
RX850B
RX900
30
29
RX900B
K
L
C
S
6
5
A
T
A
D
S
N
E
S
7
11
TXOP_HI
TXOP_LO
10
C
N
_
C
F
A
V
8
1
14
VBAT
4
I
B
B
_
C
C
V
33
GND
2
I
B
I
3
8
C
N
3
2
Q
B
Q
2
2
0
2
N
I
F
E
R
B
N
I
F
E
R
9
1
P
O
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F
E
R
1
2
T
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V
_
3
9
V
2
1
0
5
U
8
4
5
6
D
A
1
0
1
0
8
2
0
Y
S
U
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7
1
5
C
p
9
3
m
h
o
0
0
1
0
1
5
R
4
1
5
C
L504
O
X
C
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5
7
V
2
u
1
6.8nH
u
1
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0
7
0
5
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1
3
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2
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1
9
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2
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4
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1
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6
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p
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3
6
1
5
C
10
R503
6
0
5
C
3.9nH
p
7
2
4
3
T
A
B
V
L501
1
0
2
5
2
0
0
Y
X
X
E
M
6
2
-
G
1
2
3
X
S
D
1
0
5
X
z
H
M
6
2
1
2
C523
3
9p
u
7
4
2
1
5
C
2
0
9
1
0
0
0
B
S
F
S
0
0
F
0
N
C
4
8
G
1
N
E
W
A
S
1
0
5
L
F
1
D
N
G
2
3
2
D
N
G
5
3
D
N
G
4
D
N
G
0
1
5
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2
4
8
1
_
N
I
4
0
6
9
1
_
N
I
1
1
_
5
_
2
4
8
1
_
T
U
O
7
6
2
_
5
_
2
4
8
1
_
T
U
O
1
_
0
6
9
1
_
T
U
O
9
8
2
_
0
6
9
1
_
T
U
O
18nH
L507
T
A
B
V
K
0
1
2
0
5
R
L506
18nH
100p
C526
C525
C527
10p
100p
1
W
S
_
T
N
A
D
N
A
B
_
A
P
N
E
_
A
P
2
W
S
_
T
N
A
22p
C532
M
6
2
P
M
A
R
_
X
T
T
B
_
M
6
2
N
E
_
S
K
L
C
_
S
A
T
A
D
_
S
N
I
N
Q
C
F
A
P
Q
P
I
0
0
D
N
A
B
A
P
1
0
0
1
e
d
o
M
0
3
X
R
1
X
0
1
S
B
2
S
B
0
2
X
R
1
X
1
N
E
_
X
T
X
1
X
R
y
b
d
n
a
t
S
1
LGE Internal Use Only
III-2. RF circuits technical brief
`
26MHz
D
C
S1800 /
PC
S
1900_TX
GSM
850 /
EGSM
_T
X
S_EN
RX1900_N
RX1900_P
RX1800_N
RX1800_P
RX900_N
RX900_P
RX850_N
RX850_P
VB
A
T
2V75_VCXO
2V
75
_V
CXO
Match
At
ten.
AFCDAC
26MHz
Crystal
S_DATA
S_CLK
TRANSCEIVER
PAM
RF500
MOBILE S/W
ANTENNA
PAM CONTROL LOGIC
32.768kHz
Crystal
AD6725
OSC
IN
OSC
O
U
T
GPI
O
_0
73
GPI
O
_0
72
GPI
O
_0
74
ANT_SW1
ANT_SW2
GPI
O
_6
5
GPI
O
_6
6
GPI
O
_7
0
GPI
O
_6
0
DC Offset
Correction
DC Offset
Correction
/2
PFD
/4
RX LO
Generator
TX LO
Generator
Frac-N
Synth
Xtal Osc
+ Tuning
Serial
Interface
LDO
Reg 3
LDO
Reg 2
LDO
Reg 1
AD6548
IP
IN
QP
QN
VAFC
AFC
PA_BAND
TX_RAMP
PA_EN
At
ten.
Match
Match
Match
Mode
STANDBY
GSM850
EGSM
DCS1800
PCS1900
GSM850/EGSM TX
DCS1800/PCS1900 TX
PA_Band
PA_EN
ANT_SW1
ANT_SW2
0
1
1
1
1
1
1
X
0
0
0
0
1
1
X
X
0
0
0
0
1
0
1
1
1
1
X
X
▣