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LGMC
Sign & Name
Sheets
Checked
Sheet/
Approved
Rev.D
1
2
GSM 1800/GSM 1900 TX
HIGH
F
E
LOW
Rev.D
Date
BLUETOOTH
REV_1.2
Rev.D
5
GSM_PA_BAND
D
14
MODE
F
DRAWING
GSM/EDGE
9
20dB
8.86dB
D
C
Designer
4
GSM 1800/GSM 1900 RX
TCXO
VTUNE-Connected directly to GND
A
6
LG Electronics Inc.
7
KU250
MODEL
LG Electronics Inc.
DRAWING
HIGH
LOW
(1%)
1
A
(1%)
5
C
Rev_1.0
Rev.B
Rev.B
Rev.B
Section
Rev.D
Rev_1.0
Rev.D
HIGH
D
Rev.C
Rev.C
Rev.D
Rev.D
Rev.D
HIGH
EGSM
WCDMA
ANT_SEL1
2
HIGH
DCS
Rev.C
LG(42)-A-5505-10:01
E
C
GSM
16
D
DCS/PCS
7dB
E
C
B
8
B
F
15
Rev.1.0
Rev.D
4
LOW
KANG. H. S
GSM 850/ GSM 900 RX
7.5dB
MAR. 07. 2007
LOW
GSM 850/GSM 900 TX/ WCDMA
LOW
E
R434 2.7
1/4
RF
NO.
PCS
3
ANT_SEL0
Rev.C
C151
22p
NA
L126
R1011K
1000pC171
C14122p
L410
4.7nH
NA
C150
1000p
C191
0.5p
L125
C442 5.6p
100ohm
R116
C136
0.01u
R118
0
10nH
5p
L116
R1001K
C440
0.1u
C143
L408
10nH
24
VCC
5
L406 2.7nH
TC7SH04FU
U104
GND
3
100p
C438
C124
100p
1p
100ohm
R114
NA
C437
100p
C120
C185
C169
NA
C103
180p
C156
100p
FL102
EFCH1950TDF1
2
G1
3
G2
5
G3
1
IN
4
O1
U102
CP0402A1950DNTR
50OHM
4
3
COUP
2
IN
1
OUT
C14722p
100p
L404
C178
1.8nH
0.1u C127
0.5p
C190
2.7R433
5.6p
C441
VDDA8
20
28
VDDA9
VDDM
17
VTUNE1
5
18
VTUNE2
26
WLNA_IN
29
WLNA_OUT
35
WMIX_INN
WMIX_INP
34
ANT101
TX_IP
51
52
TX_QN
TX_QP
53
VCONTROL
56
4
VDDA1
VDDA10
41
VDDA11
45
VDDA12
47
48
VDDA13
VDDA14
49
6
VDDA2
VDDA3
8
9
VDDA4
VDDA5
15
16
VDDA6
19
VDDA7
HB_RF_OUT2
44
43
LB_RF_OUT1
LB_RF_OUT2
42
PGND
57
40
PWD_DET_IN
24
RF_ON
13
RX_IN
12
RX_IP
RX_QN
11
10
RX_QP
R_BIAS1
3
R_BIAS2
27
SBDT
14
7
TCXO
21
TEST
TX_IN
50
CAL_INN
23
22
CAL_INP
54
DAC_REF
DCS_INN
39
38
DCS_INP
EGSM_INN
33
32
EGSM_INP
1
ENV_LNN
ENV_LNP
255
ENV_OUT
GCELL_INN
30
GCELL_INP
31
25
GND
GPCS_INN
37
36
GPCS_INP
HB_RF_OUT1
46
RTR6275
U100
45
31
NA
L122
KRX102U
TR100
2
1p
C129
C165
180p
0.1u
C113
C105
NA
C144
22u
C12622p
1uC172
C1310.1u
680R104
C104
5p
180p
1000p
C439
C115
NA
C116
0.1u
C181
R124100ohm
L108
15nH
NA
L101
C445
2.2p
L411
4.7nH
1.5nH
L403
22u
C122
2.2p
L115
18nH
0.1u
C161
3.3p
C135
3
O2
4
C162
EFCH2140TDE1
FL103
G1
2
G2
5
IN
1
O1
100ohm
100ohmR113
R117
100ohm
R107
C106 8.2p
C153
1000p
15p
C159
C182
15p
C107 6p
C179
C128
100p
22p
3
G2
5
G3
1
IN
4
O1
R11091
EFCH897MTDB1
FL101
2
G1
C119 22p
C123
0.01u
39
R112
C174
R128 100K
10p
C183
0.01u
C117
10p
R122
130
56p
1000p
C186
C101
L111
5.6nH
68p
C139
3300p
R11951
C114
1.5p
C154
47nHL114
C444
2.2p
C137
NA
ANT
G1
G2
RF
12p
SW100
KMS-507
41
RX
TX
2
C112
FL104
ACMD-7602
ANT
3
PGND
L409
4.7nH
130
R121
C140
C134
22p
0.01u
L121
1nH
R105
GND3
9
GND4
10
GND5
GND6
12
GND7
13
GND8
14
GND9
16
21
P_GND
19
RSVD_GND
VAPC
20
17
VBATT
2
VCC1A
6
VCC1B
5.1
BS
1
DCS_PCS_IN
315
DCS_PCS_OUT
EGSM_IN
4
EGSM_OUT
11
ENABLE
18
GND1
5
GND2
7
8
ANT103
FEED
NC1
NC2
SKY77318
U101
100nH
L102
ACS2450HBAXX
C149
12KR103
15p
ANT102
C177
C132
0.1uF
SYNC_DET_TX_EN
5
VCC_OUT
3
14
VDD_BAT
2
VDD_INT
10
VDD_MSM
7
XTAL_IN
22p
16
ANT
CLK_REF
9
GND1
1
GND2
6
GND3
8
GND4
15
PGND1
17
PGND2
18
19
PGND3
PGND4
20
13
RX_BB_TX_BB
11
SBCK
SBDT
12
4
SBST
LBRQ-2B43A
M100
0.1u
10R109
C170
4.7u
1000p C176
C155
12p
C118
100ohm
C450
22p
R115
47
R120
2
RFOUT
8
1
VCC1VCC2
10
4
VCONT
5
VREF
L120
47nH
WS2512_TR1G U103
11
BGND
GND1
3
GND2
6
7
GND3
9
GND4 RFIN
C189
22p
91R111
0.5p
C164
C121
33u
47nH
L119
5.6p
L128
1.8nH
C443C110
C138
33p
100p
NA
C192
C173 2.2u
DSA321SCE-19.2M
X100
GND
2
5
NC1
NC2
67
NC3
NC4
8
OUTPUT
3
4
VCC
1
VCONT
21
14
GSM18001900_TX
GSM1800_RX1
1
GSM1800_RX2
2
GSM1900_RX1
3
4
GSM1900_RX2
GSM900_RX1
5
6
GSM900_RX2
16
GSM900_TX
VDD
19
WCDMA2100
9
19.2MHz
ANT
11
CTRL1
18
CTRL2
22
7
GND1
GND10
23
GND2
8
GND3
10
GND4
12
GND5
13
15
GND6
17
GND7
GND8
20
GND9
100p
U500
D5011
R106 5.1
C142
C102
NA
L407
2.7nH
C152
0.01u
C180 2.2u
33p
C109
C158
15p
1nH
L123
2.7nHL405
C13022p
0.01uC188
0
R123
180p
R108
51
C108
C187 1000p
VREG_TCXO_2.85V
10nH
C157
VREG_RF_SMPS
VREG_RF_SMPS
BT_DATA
TCXO_BT
VREG_MSMP_2.7V
TRK_LO_ADJ
+VPWR
PA_R0
VDD_RX
GSM_TX
VDD_RX
BT_CLK
BT_SBCK
BT_SBDT
BT_SBST
VREG_BT_2.85V
BT_TX_RX_N
GSM_TX
DCS_PCS_TX
VREG_RF_SMPS
+VPWR
+VPWR
DAC_REF
GSM_PA_BAND
GSM_PA_EN
GSM_PA_RAMP
PWR_DET
TCXO_BT
VREG_BT_2.85V
TCXO_PM
RTR6275_TCXO
PA_ON
VREG_TCXO_2.85V
TX_IM
TX_IP
TX_QM
TX_QP
TX_AGC_ADJ
VREG_SYNTH_2.6V
DCS_PCS_TX
VREG_MSMP_2.7V
ANT_SEL1
ANT_SEL0
PWR_DET
TX_ON
RX_IM
RX_IP
RX_QM
RX_QP
SSBDT_RTR
RTR6275_TCXO
7. CIRCUIT DIAGRAM
U250/KU250