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Only for training and service purposes
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
LG Electronics
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LGE Property
Figure 24 RF transceiver PMB6272 SMARTi-PM schematic
26MHz
X500
TSX-3225
2
1
3
4
GND2
HOT2
HOT1
GND1
0.1u
C518
U500
PMB6272
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
EF
X
A
8
V2
S
AI
B
D
D
V
B
X1
X
R
X
B
1
X
R
8
V2
GI
D
D
D
V
X2
X
R
A
D
2
X
R
KL
C
2
D
N
G
5
V1
GI
D
D
D
V
X3
X
R
3
S
Y
SF
3
X
R
2
S
Y
SF
X4
X
R
O
X
4
X
R
X
O
X
5
V1
A
NL
D
D
V
GND1
FSYS1
VDDXO2V8
EN
VDDVCO2V8
VCO_RC
VDDRX1V5
VDDRX2V8
VRF_2V85
VRF_1V5
C511
220n
VRF_2V85
1n
C516
C517
47n
0.1u
C535
01
60
5
R
10
R507
VRF_2V85
VRF_1V5
220n
C522
0.1u
C506
R508
820
0.1u
C536
0.1u
C537
RF_EN
RF_DA
RF_CLK
26MHZ_MCLK
QX
Q
IX
I
CLK26M
LBAND_PAM_IN
HBAND_PAM_IN
VC1
VC2