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7. CIRCUIT DIAGRAM
1
1
2
2
A
A
GND500
B
B
GRS300-2S-H36-E3000
C
C
D
D
E
E
F
F
G
G
H
H
1
1
2
2
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3
3
4
4
5
5
ANT500
C500
1.5p
C502
0.5p
R502
68
L509
R503
68
1nH
L510
VBAT
10nH
1
31
SW500
GND1
GND17
2
30
GND2
VPC
3
29
GND3
VBATT
4
28
GND4
VSUP
5
27
U501
GND5
BS0
6
26
SKY77523
GND6
BS1
7
25
GND7
PAC_EN
8
24
GND8
TR_EN
C510
9
23
GND9
SAT_DET
R508
10
22
ANT
COUP
11
21
22p
GND10
GND16
18
L500
100nH
R509
R510
220
220
C518
C519
C520
DNI
39p
22u
DCS
PCS
GSM850
EGSM
ANT_SW1
GSM850 RX
EGSM900 RX
DCS1800 RX
PCS1900 RX
GSM/EGSM TX
DCS/PCS TX
3 3
4
4
5
5
6
6
7
7
8
8
C501
39p
2V75_VCXO
C503
100p
IP
C505
39p
IN
C507
1
30
39p
I
Q
2
29
IB
QB
3
28
VSUP_BBI
SCLK
4
27
REF_SEL_26M
REF_SEL
SDATA
5
26
ANT_SW2
SEL_26M
U500
SEN
6
25
ANT_SW1
VLDO3_DRV
AD6546
VDD
7
24
PA_EN
(GPIO_060)
TXOP_LO
REF_OP
8
23
PA_BAND
(GPIO_070)
TXOP_HI
REFIN
9
22
VLDO3_VCO
REFINB
10
21
VBAT1
VSUP_REF
C511
C512
0.1u
0.1u
TX_RAMP
C521
VBAT
C517
C522
1u
0.1u
220p
C523
0.1u
C524
1u
C533
DNI
FL500
SAWEN1G84CN0F00
L505
2.7nH
4
7
IN_1842_5
OUT_1842_5_1
6
OUT_1842_5_2
9
OUT_1960_1
L506
1.2nH
1
8
IN_1960
OUT_1960_2
2
5
GND1
GND3
3
10
GND2
GND4
FL501
SAWEN881MCN0F00
L507
1.5nH
4
7
IN_881_5
OUT_881_5_1
6
OUT_881_5_2
9
OUT_942_5_1
L508
3.3nH
1
8
IN_942_5
OUT_942_5_2
2
5
GND1
GND3
3
10
GND2
GND4
ANT_SW2
PA_EN
PA_BAND
L
L
L
H
L
H
L
H
H
L
L
H
H
H
L
H
L
H
H
H
H
H
H
H
6
6
7
7
8
8
- 117 -
9
9
10
10
11
11
2V93_VEXT
Q500
Q2_E
Q2_C
4
3
Q2_B
5
Q1_B
BT_DBB_CLKON
2
Q1_C
Q1_E
6
1
C506
X500
1u
GND
VCC
2
4
C504
NC
OUT
1
3
0.1u
26MHz
TG-5010LH-87N
2V93_VEXT
QP
QN
S_CLK
(GPIO_074)
S_DATA
(GPIO_073)
(GPIO_072)
S_EN
C509
1000p
X501
4
3
DSX321G-26M
1
2
26MHz
R511
1K
AFC
PCS
DCS
EGSM
GSM850
9
9
10
10
11
11
12
12
A
A
B
B
C508
26M_BT
33p
C
C
26M
D
D
E
E
F
F
G
G
H
H
12
12
LGE Internal Use Only
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