LG PRADA KE850 - Messaging Functions; Writing Text Messages; Writing Multimedia Messages

3. TECHNICAL BRIEF
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Figure 5 Power domain block diagram of KE850
C
Remote Power On
100K
R218
2V85_SIM
2.2u
C202
VBAT
R205 100K
VRF1V5
L201 10uH
0.1u
C214
VUPU
2V72_IO
R204
1K
C212
VBAT
VBAT
22u
22K
R203
VRF2V65
VBAT
2V85_IO
VMMC
91
1B0
2
1B1
8
1S
6
2A
2B0
3
2B1
4
7
2S
GND
5
VCC
10
FSA2267AL10X
U204
1A
VBAT
VRF2V85 2V11_RTC
220K
R201
2.2u
C216
1V5_DSP
1V8_SDVBAT
22u
C213
R213
2V65_ANA
R216 4.7K
82K
2.2u
C201
C227
2.2u
C208
2.2u
C204
2.2u
R215 4.7K
C226
0.1u
Q201
2
3
1
VUSB
2SC5585
2.2u
C225
C209
2.2u
C224
0.1u
1V5_Core
C210
C207
2V72_IO
0.1u
C205
2.2u
2.2u
2.2u
C203
C228
USB_VBUS
2.2u
VSSAU
27
8
VSSFB
VSSPW
7
33
VSSR
10
VUPU
11
VUSB
VRF2V7
2.2u
C206
46
VDDC
VDDCH
43
5
VDDPW
VDDRF
39
13
VIB
21
VINT
VLBB1
45
VLBB2
47
20
VMMC
40
VRF1
38
VRF2 VRF3
37
3
VRFC
42
VRTC
VSIM1
18
VSIM2
19
ON
4
RESETQ
48
SCL
23 24
SDA SLED1
15
SLED2
14
SW
6
VANA
34
2
VBATS
VBUS
12
44
VCHC
VCHS
1
VCXOEN
36
35
VDDA
30
VDDAU
17
VDDB
PMB6812
AUIN
25
26
AUIP
28
AUON
AUOP
29
31
BYP
FB
9
49
GND
INTOUT
41
IREF
32
16
LED LRF3EN
22
U201
470K R202
C223
2.2u
VCHG
FB201
2.2u
C215
C211
2.2u
R217
100K
PWRON
RTC_OUT
PWRON
KP_OUT1
KP_IN5
VCHS
RPWRON
C_RPWRON
SPOWER_INT
BT_VCXO_EN
PMRSTn
SCL
SDA
SLED1
VCH_CTL
XO_ENE
PWRON
VBACKUP