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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
Figure 28. RF transceiver PMB6272 SMARTi-PM schematic
18n
L403
L401
18n
P
5.
1
5
1
4
C
4
1
4
CP
5.
1
C419
100n
C432
100n
C404
100n
C407
100n
C408
100n
P
2.
2
0
0
4
C
220N
C401
L400
5.6NH
2V85_VRF
C403
4.7N
1V5_VRF
1V5_VRF
820
R403
C418
100n
1000P
C405
C406
47N
2V85_VRF
10
R404
5.6n
L402
P
2.
2
9
0
4
C
C410
220N
1
1
4
CP
2.
2
2V85_VRF
0
0
4
U
2
7
2
6
B
M
P
20
19
18
17
16
15
14
13
1
2
2
1
2
2
1
1
3
2
0
1
4
2
9
5
2
8
6
2
7
7
2
6
8
2
5
9
2
4
0
3
3
1
3
2
2
3
1
33
34
35
36
37
38
39
40
41
GND4
GND3
VDDMIX2V8
VDDTX2V8
TX2
TX1
VDDTX1V5
VBIAS
FE2
A
1
E
F
X
A
8
V
2
S
AI
B
D
D
V
B
X
1
X
R
X
B
1
X
R
8
V
2
GI
D
D
D
V
X
2
X
R
A
D
2
X
R
K
L
C
2
D
N
G
5
V
1
GI
D
D
D
V
X
3
X
R
3
S
Y
S
F
3
X
R
2
S
Y
S
F
X
4
X
R
O
X
4
X
R
X
O
X
5
V
1
A
N
L
D
D
V
GND1
FSYS1
VDDXO2V8
EN
VDDVCO2V8
VCO_RC
VDDRX1V5
VDDRX2V8
P
2.
2
7
1
4
C
2V85_VRF
1V5_VRF
2V85_VRF
2
2
4
CP
2.
2
C423
DNI
5
2
4
CP
2.
2
10
R407
26MHZ
X400
NX3225SA
2
1
3
4
GND2
HOT2
HOT1
GND1
0.01U
C431
L405
3.9n
C445
0.01U
C435
1.5p
RF_EN
RF_DA
RF_CLK
26MHZ_MCLK
QX
Q
IX
I
LBAND_PAM_IN
HBAND_PAM_IN
BT_CLK
GSM900
GSM850
PCS1900
DCS1800
Содержание AR140B
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