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1
ANT103
ANT101
ANT102
A
C102
5.6P
R101
R102
0
0
L110
L105
8.2nH
NA
SW101
KMS-518
B
FL102
LMSP2PQK-772
R119
0
DBB2RF_SWITCH4
R120
0
DBB2RF_SWITCH3
R121
0
DBB2RF_SWITCH2
R122
0
DBB2RF_SWITCH1
FB101
DBB2RF_SWITCH_PWR
BLM15AB601SN1
C
D
E
X101
1
VCONT
ABB2RF_AFC
2
GND
F
KT22M-ECW29A-26.000M-T
26MHz
1
2
3
RF_TD_RX
FL101
L107
LFL152G01TC1A271
2
4
22nH
OUT
IN
RF_TD_TX
1
3
GND2
GND1
C111
100p
2
IN
1
OUT
LDC15836M20Q-360
2
VC4
100p
1
3
C113
VC3
OUT
4
VC2
2
5
12
VC1
TX1_GSM850_900
IN
6
VDD
11
LDC15836M20Q-360
TX2_DCS_PCS
2
5
G1
G3
_OUT
C155
22p
1
IN
OUT
FL103
B9419
FL104
B9308
C156
22p
1 I1
O1_1 9
O1_2
O2_1
C157
39p
4 I2
O2_2 6
2 3
5 10
VRF_ABB
3
OUT
VCTCXO_26M
GSM_REF_OP
4
VCC
2
3
4
5
GSM RX & TX
U101
3
R104
51
COU
4
R105
22
TER
L106
4.3nH
U102
C115
C116
4
TER
NA
NA
R109
3
COU
22
C128
1.5P
L108
L109
15nH
5.6nH
4.7p
4
C130
3
L101
5.6nH
C126
4.7p
C134
10p
L103
5.6nH
8
C136
10p
7
C137
33p
L104
15nH
C139
33p
GSM_IP
GSM_IN
C142
100p
GSM2TD_TX_REFCLK
C149
1000p
GSM2TD_RX_REFCLK
4
5
6
VBAT_RF
C108
C107
33u
56p
(2012)
(50V)
(10V)
U103
2
BAND_SELECT
DBB2RF_GSM_PABS
9
GSM_OUT
1
DCS_PCS_IN
11
DCS_PCS_OUT
8
GSM_IN
7
3
GND1
TX_EN
DBB2RF_GSM_PAEN
12
GND2
4
VBATT
6
NC1
R115
10
5
NC2
VRAMP
0
C119
TQM7M5012
NA
VEXT_RF
VBAT_RF
VRF_ABB
C124
C125
0.1u
1000p
C131
100p
C133
0.22u
31
VSUP_BBQ
32
20
RX1900B
VAFC
33
19
RX1900
VLDO2
34
18
RX1800B
VLDO1
35
17
RX1800
VBAT2
U104
36
16
RX900B
NC1
AD6546
37
15
RX900
TX_FB
38
14
RX850B
VSUP_AM
39
13
RX850
NC2
40
12
VSUP_FE
APC
11
RAMP
41
GND
C141
39p
Changed by
Date Changed
Time Changed
2009.06.02
mentor
6
7
8
C109
C110
0.01u
0.1u
(16V)
(10V)
R107
12
C112
22p
R108
18
C114
39p
R110
R111
R112
R113
470
470
300
300
GSM_QP
GSM_QN
DBB2RF_SCLK
DBB2RF_SDATA
DBB2RF_SEN
C127
1000p
GSM_REF_OP
C129
1000p
VCTCXO_26M
L102
C132
270nH
150p
R118
100
ABB2RF_GSM_PARAMP
C140
33p
Engineer
LG_ELECTRONICS
Drawn by
R&D CHK
TITLE:
GD300-TD Rev.1.0
DOC CTRL CHK
GSM_RX_TX
MFG ENGR CHK
QA CHK
REV
Drawing Number
Sheet
1 of 11
7
8
A
B
C
D
E
F
Size
A3
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