LG KG290 - Page 104

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LGMC
8
LGIC(42)-A-5505-10:01 LG Electronics In
c.
3
6
9
5dB
A
2
1
1
43 75
52
A
4dB
10
E
D
B
4
0.1u
C529
NC2
19
PCS_RX+
13
12
PCS_RX-
TX1G
6
TX2G
8
VCTRL1
22
21
VCTRL2
20
VCTRL3
3
VDD
1M
R520
DCS_RX+
15
14
DCS_RX-
EGSM_RX+
17
16
EGSM_RX-
GND1
2
25
GND10 GND11
26
GND2
4
GND3
5
7
GND4
GND5
9
10
GND6
11
GND7
GND8
23
GND9
24
18
NC1
C543
YGHF-S006T
FL500
1
ANT
1000p
C503
33p12p
C500
C520
0.1u
0
R506
2V75_VVCXO
0.1u
C519
NA
C536
100ohm
C527
0.1u
R500
C507
39p
27p
12
34
C545
20
VAPC
17
VBATT
VCC1A
2
VCC1B
6
26MHz
X500
TSX-3225_26MHZ
DCS_PCS_IN
315
DCS_PCS_OUT
EGSM_IN
4
EGSM_OUT
11
18
ENABLE
5
GND1 GND2
7 8
GND3
9
GND4 GND5
10
GND6
12
GND7
13 14
GND8
16
GND9
21
P_GND
RSVD_GND
19
SKY77318
U500
1
BS
2V75_VVCXO
C535
0.1u
C510
2nH
27p
C505 C506
68p
100p
C540
C542
NA
C530 4p
0.1u
C528
180
R510
VCC_REF
12
VCC_TXVCO
VDD
13
VLDO1
15
16
VLDO2
VLDO3
9
15nH
L504
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
18nH
C515
U501
AD6548
C531
0.1u
C539
100p
33pC511
27p
C521
4pC525
C504
C523
22u
4p
39p
C541
R507
24
C526 4p
2V75_VVCXO
10K
PT500
C544
VBAT
R505NA
39p
1K
R518
TP502
C546
39p
39p
R590
C534
VBAT
NA
100p
C538
C508
0.01u
10pC513
NA
C524 220n
R513
L500
39p
1p
C522
G1 G2
RF
R591
0
RF-600
SW500
ANT
2V8_VMEM
TP500
0.01u
C501
8pC533
30
R511
NA
C512
R503 68
C532 8p
4
0.01u
C509
MC74VHC1G04DFT2G
2
3
GND
VCC
5
C548
U502
22p 0.1u
C517
L503
6.8nH
L502
6.8nH
C502
TP501
18p
2.2u
C547
R508
220
39p
C514
15nH
C516
22K
R521
R501 100ohm
R512
180
6.8p
220
R509
L501
0.15MM
26M_DBB
ANT_SW3
TEMP_RF
ANT_SW2
ANT_SW1
AFC
PA_BAND
TX_RAMP
PA_EN
S_EN
S_CLK
IN
QN
QP
IP
S_DATA
7. CIRCUIT DIAGRAM
LGE Internal Use Only
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Only for training and service purposes