LG KE820 - Using the ABC Mode

3. TECHNICAL BRIEF
- 37 -
C218
2.2u
2V72_IO
L201
10uH
2.2u
C226
82K
C211
2.2u
R213
C235
1V5_DSP
100u
2.2u
C208
CRS08
D201
R217
C210
2.2u
2V85_IO2
100K
VCHG 2V85_RF
22u
C220
C212
2.2u
VBAT
C222
2.2u
C230
1u
D2 D3 D4
G
S
C209
2.2u
Q201
SI3457BDV
D1
22u
C219
2.2u
C213
2V7_VCXOVBAT
VBAT
2.2u
C221
470K
R208
VBAT
VBAT
2V65_BT
FB201
VBAT
0.1uC216
0.15
R220
22K
R203
2.2u
C227 C228
2.2u
2.2u
C223
2.2u
2V85_SIM
C217
37
VRF3
VRFC
3
VRTC
42
18
VSIM1
19
VSIM2
27
VSSAU
8
VSSFB
7
VSSPW
VSSR
33
VUPU
10
VUSB
11
2V11_RTC
1
VCHS
36
VCXOEN
VDDA
35
VDDAU
30
VDDB
17
VDDC
46
VDDCH
43
VDDPW
5
39
VDDRF
VIB
13
VINT
21
45
VLBB1
47
VLBB2
VMMC
20
VRF1
40
VRF2
38
GND
49 41
INTOUT
32
IREF
LED
16 22
LRF3EN
4
ON
RESETQ
48
23
SCL SDA
24 15
SLED1
14
SLED2
6
SW
34
VANA
VBATS
2
12
VBUS
VCHC
44
PMB6812
U203
25
AUIN
AUIP
26
AUON
28
29
AUOP
BYP
31
9
FB
VCHG
2.2u
C207
2V85_CARD
3V1_USB1V8_MEM 1V5_RF
1V5_CORE
R202
220K
C229
2.2u
C224
4.7u
2V65_ANA
VCHS
KEY_BACKLIGHT
VCH_CTL
PWRONRTC_OUT VBACKUP
VBUS_USB
USB_PU
SPOWER_INT
BT_VCXO_EN
PWRON
_PMRST
SCL
SDA
VCH_CTL
VCHS VCXO_EN
Figure 6 SM-Power circuit diagram with charging part