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7. CIRCUIT DIAGRAM
1
2
ANT
TP500
TP501
A
C531
0
C500
NA
R500
1.8p
L500
8.2nH
SW500
KMS-506
C502
1000p
FL500
LMSP54LA-445TEMP
12
VC3
9
VC2
11
VC1
16
GND7
15
GND6
14
GND5
7
GND4
5
GND3
3
GND2
1
GND1
C523
1000p
U501
1
1000p
C526
2
CLKON
2V75_VVCXO
13MHz
2
4
GND
VCC
R505
1
3
AFC
VCONT
OUT
10K
X500
C530
1000p
E
1
2
LGIC(42)-A-5505-10:01
3
4
5
ANT_SW3
ANT_SW2
ANT_SW1
6
GSM1900_RX
4
GSM1800_RX
2
GSM900_RX
8
GSM18001900_TX
10
VBAT
GSM900_TX
C515
C516
22u
0.01u
1V8_VCORE
2V75_VVCXO
L501
3nH
C519
NA
C522
2.2u
R502
C524
0
5
NC7SV00P5X_NL
NA
VCC
R503
4
13MHz
100
GND
3
R504
1M
C529
(1005)
1u
Iss.
Notice No.
3
4
5
6
7
8
VBAT
VBAT
C501
C506
33p
0.1u
C507
C508
33p
0.1u
13M_RF
49
1
RX_EN
RXENA
VCC3
48
TX_EN
TXENA
47
2
850LNA
I+_TX_I+
46
3
900LNA
I-_TX_I-
45
4
1800LNA
Q-_TX_Q-
44
5
1900LNA
Q+_TX_Q+
6
VCC1
42
VBAT
7
PED_SELECT
39
DCS_PCS_OUT
8
C514
ENABLE
31
9
10p
GSM_OUT
VAPC
10
U500
BAND_SELECT
77
11
PGND9
VCC_1A
78
22
SKY74400
PGND10
VCC_1B
79
PGND11
80
PGND12
81
12
PGND13
GND1
82
13
PGND14
GND2
83
14
PGND15
GND3
84
15
PGND16
GND4
85
16
PGND17
GND5
86
17
PGND18
GND6
C518
87
18
C520
PGND19
GND7
0.01u
88
19
NA
PGND20
GND8
89
20
PGND21
GND9
90
21
PGND22
GND10
91
23
PGND23
GND11
92
24
PGND24
GND12
93
25
PGND25
GND13
94
26
C525
PGND26
GND14
95
27
NA
PGND27
GND15
96
PGND28
C527
0.01u
Section
Date
Sign & Name
12/08
Designer
lee ki sung
2005
Checked
Approved
Date
Name
LG Electronics Inc.
- 119 -
9
10
S_DATA
S_EN
S_CLK
SYNTH_EN
RF_PWR_DWN
C509
22u
IP
C510
39p
IN
QN
VBAT
C511
39p
C512
QP
0.1u
C513
33p
VBAT
PA_EN
0
TX_RAMP
R501
PA_BAND
C517
47p
C521
4.7u
VBAT
C528
4.7u
Sheet/Sheets
MG300d(S5100)
MODEL
5 / 7
DRAWING
RF(SKY)
NAME
DRAWING
Rev.B
NO.
LG Electronics Inc.
A
B
D
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