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7. CIRCUIT DIAGRAM
16
15
14
L
RF PART
K
VLOGIC
TX_RAMP
TX_EN
J
I
GND401
R410
0
ANT401
SW400
C431
C457
G2
ANT
RF
G1
100p
100p
H
L419
L420
22n
L417
0.5p
15n
G
F
MODE
VLOGIC
TX_EN
BS1
STANDBY
LOW
X
EGSM_RX
HIGH
LOW
LOW
E
GSM850_RX
HIGH
LOW
LOW
PCS_RX
HIGH
LOW
HIGH
DCS_RX
HIGH
LOW
HIGH
LB_TX
HIGH
HIGH
LOW
HB_TX
HIGH
HIGH
HIGH
D
C
B
A
16
15
14
LGE Internal Use Only
13
12
11
10
R401
1K
BS1
VBAT
BS2
C400
C401
C402
C403
C404
(10V,1608)
Register delete
1n
1n
1n
39p
1n
C406
C407
10n
33p
33
PGND3
32
PGND2
31
PGND1
10
1
GND5
GND1
11
30
L400
3.3n
RX1
SKY77547
VBATT
12
29
RX2
U400
DCS_PCS_IN
13
28
RX3
GND17
C455
14
27
RX4
GSM_IN
15
26
GND6
GND16
EGSM
100p
GSM850
16
25
GND7
GND15
PCS1900
36
DCS1800
PGND6
35
PGND5
34
PGND4
C420
1p
C453
6.8p
C435
DNI
L407
FL401
SFSB0001903
1.2n
1
8
IN_1842_5
OUT_1842_5
L409
18n
4
9
IN_1960
OUT_1960
L410
2
7
GND1
GND2
3
6
1.2n
GND3
GND4
5
10
GND5
GND6
1805M1880M,1930M1990M
C441
FL402
SFSB0001803
22p
1
8
IN_881_5
OUT_881_5
L411
4
9
DNI
IN_942_5
OUT_942_5
C442
2
7
GND1
GND2
3
6
22p
GND3
GND4
5
10
GND5
GND6
869M894M,925M960MHz
BS2
X
X
LOW
HIGH
HIGH
LOW
X
X
13
12
11
10
9
8
7
6
Bluetooth
C408
4.7u
L401
DCS_PCS_OUT
3.3n
GSM_OUT
L404
1.5n
C456
C424
TP1
100p
7p
C454
C427
C430
DNI
DNI
3p
RX34X
L408
2.2n
RX34
RX12X
L412
9.1n
RX12
LG-C100 / LG-C105 INDICATOR
FM ANTENNA INDICATOR
1V8_VDD
R418
DNI
R419
100K
C105 Wireless
9
8
7
6
- 122 -
5
4
3
2
2V85_VAUX
1V8_VDD
FB400
HB-1M1005-601JT
C405
10n
600
C410
2.2u
C411
10p
C412
C413
C414
10n
2.2u
2.2u
C415
DNI
C416
C417
10p
DNI
R411
15K
G4
1V2_VREG
FL400
RES
BT Class 1.5
1
3
D1
B4
IN
OUT
RFP
RST_N
2
4
B2
GND1 GND2
REG_EN
F7
C4
SCL
TM0
2450MHz
E7
F3
SDA
TM2
A8
F6
SPIM_CLK
PCM_IN
C7
G6
SPIM_CS_N
PCM_OUT
U401
F4
PCM_CLK
C436
1n
EUSY0382201
A4
F5
CLK32K
LPO_IN
PCM_SYNC
C437
1n
G2
C8
BT_CLK
XIN
UART_TXD
G3
D8
XOUT
UART_RXD
D7
UART_RTS_N
B5
E8
DBB_BT_INT
GPIO_0
UART_CTS_N
B3
BT_DBB_INT
GPIO_1
E6
FSYS_EN
TCXO_OR_OUT_GPIO_5
E3
TCXO_OR_IN_GPIO_6
B7
GPIO_7
FM_ANT_INDI
R418
R419
C100 Wired
100k
DNI
DNI
100k
5
4
3
2
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1
L
K
J
I
1V8_VDD
BT_RESET
PCM_TX
H
PCM_RX
PCM_CLK
PCM_SYNC
BT_RXD
BT_TXD
BT_CTS
BT_RTS
G
F
E
D
C
B
A
1
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