LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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3.2.4 Camera Regulator
APP_GP15_CAM_LDO_CTRL enables 1.8V & 2.8V Camera Regulator for both 3M and VGA Camera.
Charge Pump includes two voltage regulators.
(3M : 2.8V for analog, 1.8V for I/O, 1.8V for digital), (VGA : 2.8V for analog, 1.8V for I/O, digital)
1.5V LDO is used for only 2M digital core. It’s derived from AB3000 and controlled by camera driver
file.
BACKLIGHT CHARGE PUMP
1%
1%
C104
1u
C100
1u
1u
C105
R102
100K
ZD101
ESD9X5.0ST5G
INSTPAR
100K
R103
C101
10u
C106
10u
R104
6.8K
1u
C102
R105
20K
VBAT
8
C103
0.01u
9
3
GND
IN
2
LDO1
4
5
LDO2
16
M1
M2
15
M3
14
13
M4
OUT
25
28
P1
P2
17
24
PGND
1
PIN
REFBP
6
7
SETF
SETM
BGND
29
22
C1N
C1P
23
C2N
27
26
C2P
ENF
21
18
ENLDO
20
ENM1
ENM2
19
F1
12
11
F2
10
F3
F4
MAX8631XETI
U100
VDD_CAM_2V8
APP_GP15_CAM_LDO_CTRL
APP_GP10_BL_CTRL
LCD_BL5
LCD_BL3
LCD_BL1
LCD_BL2
LCD_BL4
VDD_BACKLIGHT
VDD_CAM_1V8
Figure 3-2-6. 1.8V and 2.8V Camera Regulator in Charge Pump
Parallel with VCORE
3*3*1.2 0.85A 155mohm 30%
to Bluetooth
1608 120ohm(@100MHz)
to SD Card and LCD and OJ
BLM18PG121SN1J
to All I/O Supplies and Memory
to DB3100 CORE
to DB3100 analog
to AB3000 RTC module
to AB3000 CODECs/ADC/PLL
to RF3000 and RF3100 digital
to Hall Switch, AB3000 BEAR
SS 1.2V
FB600
0
R636
R637
0
1u
C602
VDDC_2V65
1u
C611
VDDG_2V75
VCORE
VBAT_C
VDDF_2V5
VDDK_2V75
VBAT
C608
1u
R639
0
1u
C607
1u
C610
C603
2.2u
VDDH_CAM_CORE
C606
1u
4.7uH
L600
C609
1u
1u
C601
A11
VDD_C
F12
VDD_D
VDD_E
D12
A9
VDD_F
VDD_G
A7
B12
VDD_H
VDD_K
M12
VBUCK
B2
A2
VDDBUCK
J11
VDDLP
C12
VDD_A
A1
SWBUCK
EXTLDO
B11
0
R603
4.7K
R605
VDDC_2V65
VDDG_2V75
VDDK_2V75
VDDE_1V8
VDDD_1V5
VDIGRAD_1V8
VDDF_2V5
VBACKUP
VCORE
VBUCK_FB
VDDH_CAM_CORE
Figure 3-2-7. 1.5V Camera LDO in AB3000
Z3X-BOX.COM
Содержание KT520
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