LG GS290 Service Manual page 31

3. TECHNICAL BRIEF
GS290 Operational Description
GS290 Operational Description
–driver for Vibra Motor with adjustable voltages, soft startup / shutdown and current limitation
–driver for Vibra Motor with adjustable voltages, soft startup / shutdown and current limitation
SM-POWER offers several control functions
SM-POWER offers several control functions
– Power-on Reset Generator with logic state machine
– Power-on Reset Generator with logic state machine
– I2C bus interface
– I2C bus interface
– I2C bus configurable mode control logic with ON (push-button or RTC), VCXOEN and LRF3EN (wake-up by
– I2C bus configurable mode control logic with ON (push-button or RTC), VCXOEN and LRF3EN (wake-up by
Bluetooth) inputs
Bluetooth) inputs
– Programable interrupt channels to handle peripherals like SIM, MMC and USB
– Programable interrupt channels to handle peripherals like SIM, MMC and USB
– Monitoring of charging functions
– Monitoring of charging functions
– Undervoltage Shut-Down
– Undervoltage Shut-Down
– Errorflags (volatile or non-volatile) from many power-supply functions and thermal sensor in order to debug
– Errorflags (volatile or non-volatile) from many power-supply functions and thermal sensor in order to debug
system
system
– Overtemperature Shut-Down
– Overtemperature Shut-Down
– Overtemperature Warning
– Overtemperature Warning
– Support of S-GOLD standby power-down concept
– Support of S-GOLD standby power-down concept
– Support of S-GOLD Power-Down Pad Tristate Function
– Support of S-GOLD Power-Down Pad Tristate Function
Table 6. LDO Output Table of SM-Power
Table 6. LDO Output Table of SM-Power
LDO Net name
LDO Net name
SD1 1V35_Core
SD1 1V35_Core
SD2 1V8_SD
SD2 1V8_SD
VAUX 2V9_VAF
VAUX 2V9_VAF
VIO 2V62_VIO
VIO 2V62_VIO
VSIM 2V9_SIM
VSIM 2V9_SIM
VMME 2V8_VMME
VMME 2V8_VMME
VUMTS 2V85_AMP
VUMTS 2V85_AMP
VUSB VUSB
VUSB VUSB
VLED VLED
VLED VLED
VAUDIOa 2V5_VAUDA
VAUDIOa 2V5_VAUDA
VAUDIOb 2V5_VAUDB
VAUDIOb 2V5_VAUDB
VRF1 2V85_VRF
VRF1 2V85_VRF
VRF2 1V5_VRF
VRF2 1V5_VRF
VRF3 2V65_VBT
VRF3 2V65_VBT
VPLL 1V35_VPLL
VPLL 1V35_VPLL
VRTC 2V11_RTC
VRTC 2V11_RTC
VAFC VAFC
VAFC VAFC
VVIB 2V8_VLCD
VVIB 2V8_VLCD
LGE Internal Use Only
LG Electronics
Output Voltage Output Current
Output Voltage Output Current
1.35V 600mA
1.35V 600mA
1.8V 300mA
1.8V 300mA
2.9V 100mA
2.9V 100mA
2.62V 100mA
2.62V 100mA
2.9V 70mA
2.9V 70mA
2.9V 150mA
2.9V 150mA
2.85V 110mA
2.85V 110mA
3.1V 40mA
3.1V 40mA
2.9V 10mA
2.9V 10mA
2.5V 200mA
2.5V 200mA
2.5V 50mA
2.5V 50mA
2.85V 150mA
2.85V 150mA
1,53V 100mA
1,53V 100mA
2.7V 150mA
2.7V 150mA
1.35V 30mA
1.35V 30mA
2.11V 4mA
2.11V 4mA
2.65V 5mA
2.65V 5mA
2.8V 140mA
2.8V 140mA
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Usage
Usage
Core & for LDO
Core & for LDO
Memory
Memory
Cam Auto Focus
Cam Auto Focus
Peripherals
Peripherals
SIM card
SIM card
u-SD
u-SD
Headset AMP
Headset AMP
VUSB
VUSB
Not used
Not used
Stereo headset, Mono earpiece
Stereo headset, Mono earpiece
Analog parts of S-Gold
Analog parts of S-Gold
2.85 V supply for SMARTi-PM
2.85 V supply for SMARTi-PM
RF transceiver
RF transceiver
1.5 V supply for SMARTi-PM
1.5 V supply for SMARTi-PM
RF transceiver
RF transceiver
Bluetooth
Bluetooth
S-GOLD3 PLL
S-GOLD3 PLL
Real Time Clock
Real Time Clock
Not used
Not used
LCD
LCD
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Property
Revision B
Revision B