Table of Contents
Advertisement
3. Circuit Description
VBACKUP
Backup
Battery
MMC/SD
SIM
Main
Battery
LGE Internal Use Only
B
Switch
BRRTC
1.8V
10 uA
VRRTC
GND_PWR1
VRRTC
1.8V
20 mA
GND_PWR1
PCSM
RTC
VRMMC
1.8V/2.85V
VRMMC
100mA
GND_PWR1
VRSIM
VRSIM
1.8V/2.85V
15mA
GND_PWR4
SIM
Interface
VRABB
VRABB
2.8V
80mA
GND_PWR4
Analog
Core
VCC6
VRVBUS
VRVBUS
5.0V
VBUSFBK
60mA
GND_PWR4
GNDVBUS
VBUS
VRUSB
VRUSB
3.3V
15mA
GND_PWR4
USB
tranceiver
<Fig.12> Power Supply Scheme
attery
VRPLL
1.05v/1.3V/
1.4v
10mA
GND_PWR1
VCC2
VRMEM
1.8V
`
200mA
GND_PWR1
VRPCA
BBS
REFGND
GND_PWR1
VRIO
1.8V
200mA
GND_PWR5
Digital
Core
VRWLED
20.0V
20mA
GND_PWR2
VREXTL
2.8V/1.8V
100mA
1.05V/1.3V
200mA
GND_PWR5
VREXTH
1.8V 100mA
2.8V 200mA
GND_PWR5
(2)
VCC4
VRDBB
0.95v to 1.4v
600mA
GND_PWR1
Copyright © 2007 LG Electronics. Inc. All right reserved.
- 34 -
VCC2
(1)
Main
Battery
VRPLL
DBB PLL
SRAM
VRMEM
MEMORY
io/core
DBB
memory
io
VCC5
VRIO
DBB io
W-LEDs
VCC3
VREXTL
1.8V
peripheral
VCC4
VREXTH
2.8V
peripheral
VCC1
VRDBB
(2)
VFDBB
DBB core
GNDDBB
(2)
Only for training and service purposes
Advertisement
Table of Contents
Troubleshooting
