- 74 -
5
9
850/900/1800/1900 RX
1
4
C
ANT_SW1
850/900 TX
H
MODE
7
4
L
ANT_SW2
1
L
A
2
8
E
6
C
3
L
A
7
B
2
L
D
5
3
D
1800/1900 TX
6
H
10
C419
NA
L408
18nH
26
27
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
SC401
1
10
C415
0.5p
C405
1p
L406
V_EXTH
10nH
3p
C424
C401
68p
NA
R403
L402
2.2nH
4.7K
R412
27p
C420
ANT401
C410
15p
GND3
8
9
GND4
GND5
10
12
GND6
GND7
13
14
GND8
16
GND9
P_GND
21
RSVD_GND
19
20
VAPC
VBATT
17
VCC1A
2
VCC1B
6
U400
SKY77318
1
BS
3
DCS_PCS_IN
DCS_PCS_OUT
15
EGSM_IN
4
EGSM_OUT
11
18
ENABLE
5
GND1
GND2
7
C423
0.1uF
NA
C430
18p
C417
V_EXTH
10
R405
NA
C416
NA
R402
NA
R404
L403
18nH
22K
PT400
R409
47
6.8nH
L411
6.8nH
L409
ANT400
ANT403
C421
27p
100p
C431
C407
0.01u
GND1
5
8
GND2
10
GND3
6
GSM1800_1900RX
GSM1800_1900TX
1
4
GSM850_900RX
GSM850_900TX
2
IN
9
7
VC_GSM1800_1900TX
VC_GSM850_900TX
3
FL401
LMSP2PAA-575TEMP
C406
0.01u
Y1
Y2
L404
10nH
7
6
O2_2
NC7WV16P6X
U401
A1
A2
GND
VCC
2
G1
3
G2
5
G3
10
G4
I1
1
I2
4
9
O1_1
O1_2
8
O2_1
C402
2.2p
B9310
FL400
L412
NA
C425
R401
0
3p
100p
C422
C426
27p
C413
47p
R407
47
VBAT
680
R411
270K
R410
1.5p
C404
L400
3.3nH
47
R408
VDDRF1
15K
R400
180p
C412
SW400
RF-800
ANT
G1
G2
RF
C414
1nH
1.5p
L401
R406
47
C408
10u
NA
C418
ANT402
1.5p
C403
L410
6.8nH
27p
C427
0.01u
ANT_SW2
ANT_SW1
C409
TXLB
TXHB
TX_RAMP
PA_EN
PA_BAND
TEMPSENSE
GSM_RXP
GSM_RXN
PCS_RXN
PCS_RXP
7. CIRCUIT DIAGRAM
LGE Internal Use Only
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