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7. CIRCUIT DIAGRAM
1
2
TP500
TP501
TP502
R502
NA
A
R504
0
R505
NA
CN500
KMS-518
C518
22p
FL500
YGHF-S006T
GND6
10
GND5
9
GND4
7
GND3
5
GND2
4
GND1
2V8_VEXT
2
VCTRL3
20
VCTRL2
21
VCTRL1
22
VDD
3
C538
C539
56p
0.1u
Vdd
Vctrl1
Vctrl2
Vctrl3
E
1
2
LGIC(42)-A-5505-10:01
3
4
5
VBAT
C500
C501
C502
C503
C504
12p
0.01u
18p
33p
22u
C508
C509
0.01u
0.01u
15
3
DCS_PCS_OUT
DCS_PCS_IN
C511
27p
11
4
U500
EGSM_OUT
EGSM_IN
SKY77318
19
18
RSVD_GND
ENABLE
C512
L500
21
1
NA
P_GND
BS
NA
L501
2.7nH
C516
C517
NA
NA
C526
3.3p
TX2G
8
L502
TX1G
6
5.6nH
C528
3.3p
PCS_RX+
13
PCS_RX-
12
C529
3.9p
DCS_RX+
15
DCS_RX-
14
L503
EGSM_RX+
17
6.8nH
EGSM_RX-
C535
3.9p
16
NC2
19
NC1
18
C537
3.9p
L504
18nH
C540
3.9p
C545
C546
C547
39p
39p
39p
Tx 900
Tx 1800/1900
RX EGSM
RX DCS
RX PCS
H
H
H
H
H
L
H
H
L
L
L
H
H
L
L
L
L
L
L
H
Iss.
3
6
7
C505
C506
C507
39p
27p
27p
4dB
R506
C510
33p
24
R508
R507
220
220
R511
C513
10p
30
R510
R512
QP
180
180
5dB
C515
39p
C519
QN
1000p
C520
0.1u
AD6548
U501
C525
27p
25
RX1900B
26
16
RX1900
VLDO2
27
15
RX1800B
VLDO1
28
14
RX1800
VBAT
29
13
RX900B
VDD
30
12
RX900
VCC_TXVCO
31
11
RX850B
TXOP_HI
32
10
RX850
TXOP_LO
9
VLDO3
33
GND
C536
0.1u
IP
C544
39p
IN
R516
100ohm
ANT_SW1
R517
100ohm
ANT_SW2
R518
100ohm
ANT_SW3
X500
4
3
1
2
26MHz
NX3225DA(W-191-451)
Section
Date
01/16
Designer
2007
Checked
01/16
2007
Approved
01/16
2007
Date
Name
Notice No.
LG Electronics Inc.
- 93 -
8
9
10
R500
100ohm
PA_BAND
R501
100ohm
PA_EN
R503
1K
TX_RAMP
R509
26M_DBB
0
R513
C514
47p
NA
2V8_VMEM
VBAT
2V75_VVCXO
R514
AFC
1K
R515
0
C521
C522
C523
C524
0.1u
27p
39p
0.1u
C527
220n
C530
C531
C532
C533
0.1u
0.1u
0.1u
C534
27p
0.1u
S_DATA
S_EN
S_CLK
C541
C542
C543
27p
27p
27p
Sign & Name
Sheet/Sheets
MODEL
KP202
J. H. CHUNG
C. O. LEE
DRAWING
RF
NAME
C. O. LEE
DRAWING
VER-1.0
NO.
LGMC
A
B
D
5 / 6
LG Electronics Inc.
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