LG KP175 - Page 94

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TO PART_NO SKY77517
N.M
GSM 900 RX
45
GSM 900 TX
4dB
TX_EN
L
DCS1800 RX
1
H
D
3
H
910
C
L
3
5dB
L
BS
HH
C
2
2
IN CASE OF GSM850 /PCS1900
CHANGE THIS DUAL SAW FILTER
E
1
A
MODE
B
TO PART_NO SFSB0001301
45
H
IN CASE OF GSM850 /PCS1900
A
B
H
H
H
6
CHANGE THIS MODULE
26MHz
X500
DSX321G-26M
12
34
DCS1800 TX
L
VLOGIC
7
D
8
0R706
R501
0
DNI
C507
0.1u
C519
R514
10K
C529
56p
DNI
27p
C521
C505
30
R510
R506
24
C516
C518
0.1u
56p
10nH
L602
0.1u
C512
2V75_VVCXO
220n
C523
VBAT
2V75_VVCXO
56p
C527
2
G1
3
G2
5
G3
10
G4
I1
1
I2
4
9
O1_1
O1_2
8
O2_1
7
6
O2_2
56p
B9308
FL500
C530
C515
DNI
L601
2.2nH
C525
27p
C522
1nH
L506
0.1u
OUT500
NA
L502
0.1u
3
GND
VCC
5
4
C514
U500
MC74VHC1G04DFT2G
2
56p
C503
C517
220
R508
3p
GND2
9
GND3
10
12
GND4 GND5
13
GND6
14
GND7
15
16
GND8
20
GND9
17
GSM_IN
GSM_RX
7
18
NC
PGND
21
4
TX_EN
VBATT
1
2
VLOGIC
VRAMP
3
U501
SKY77518
ANT
11
BS
5
19
DCS_IN
DCS_RX
6
8
GND1
C508
OUT501
10u
56p
L505
18nH
C500
180
R509
C524
68p
3p
C501
VCC_REF
12
VCC_TXVCO
VDD
13
VLDO1
15
16
VLDO2
VLDO3
9
R515 0
RX1900
RX1900B
25
32
RX850
RX850B
31
30
RX900
RX900B
29
6
SCLK SDATA
5
SEN
7
TXOP_HI
11
10
TXOP_LO
VAFC_NC
18
14
VBAT
4
VCC_BBI
VCC_BBQ
24
VCC_FE
1
17
33
GND
2
I IB
3 8
NC
23
Q
QB
22
REFIN
20 19
REFINB
21
REF_OP
28
RX1800
RX1800B
27
26
U502
AD6548
EUSY0280101
ANT
G1 G2
RF
2V8_VMEM
C707
3.9p
C510
KMS-507SW500
0.01u
R507
220
L503
NA
68
R503
L504
5.1nH
C526
39p
0
R500
C520
0.1u
C513
0.1u
R511
180
C528
VBAT
56p
56p
C502
26M
OUT503
PA_BAND
PA_EN
ANT_SW
26MHz_BT
AFC
TX_RAMP
S_EN
S_CLK
IN
QN
QP
IP
S_DATA
7. CIRCUIT DIAGRAM
LGE Internal Use Only
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