Specifications

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9-2. Power Supply
■ Block Diagram of Power Supply and Voltage Detector
AC Adapter
(AD-C50200)
5. 5~4.7V
(TYP:5.0V)
2A MAX.
FUSE
F200
VDCIN
V5LCD (power for TFT
source driver)
Voltage REG.
DC-AC Back-light
Inverter
5.0V±2.5%
(IC 208)
Voltage DET. 4.1V
(IC214)
ON/OFF
ON/OFF
V5INV CFL
P5LCD PTFT3
VLION
VCHG(6.0~6.4V)
DC-DC
Converter
(IC207)
DC-DC Converter +
OUT: 13.5V±3.5%
DC-DC Converter +
OUT: 15.5V±3.5%
+ VLCD
- VLCD
ON/OFF
Power for
CD
PTFT2
ON/OFF
PTFT1
*Current
DET.
*Voltage
DET.
Controller for
Rechargeable
Battery (IC303)
Green
LED
VAMP
F201
VBAT
V3MAIN
2CH DC-DC Converter
(IC203)
ON/OFF
POP
CPU
ON/OFF
MPOWER
Temperature
DET.
Rechargeable
Battery (Lithium-ion)
3.2~4.2V
CUT OFF with 2.3V
F202
Voltage REG 3.3V±2%
(IC212)
V3RS232C
ON/OFF
P232C
Voltage REG 2.6V±2%
(IC213)
VCORE
VDET1RB
Voltage DET.
3.4V±1%
(IC200)
VPLL MPOWERB
Low Battery
Message
VDET2R
Forced power OFF
Voltage DET.
3.2V±1%
(IC201)
ON/OFF
Voltage DET. 3.4V±1%
(IC206)
Forced power OFF for Main System
Logic Circuit
ON/OFF
Voltage REG
3.4V±2%
V3ROM
(IC210)
V3SYS
V3REC
F
VPIU
PRECB
F
F
VDAF
VAD
V3LCD
VOSC
PLCDB
V3RAM
Voltage REG
3.3V±2%
(IC209)
V3CF
ON/OFF
PCF
Voltage DET.
3.0V±1%
(IC211)
VDETCFB
Forced power OFF
for Compact Flash Card
Voltage DET.
2.7V±1%
(IC204)
VDETS
Low battery
message for
Back-up battery
CR2032 Lithium Battery
* The unit can be turned on if the rechargeable
battery voltage is more than 3.2V.
* When the rechargeable battery voltage becomes
less than 3.2V, the unit can not be turned on, but
the rechargeable battery can supply Back-up
voltage to IC for memory.
* But, when the rechargeable battery voltage
becomes less than 2.3V, the rechargeable
battery can not supply this Back-up voltage.
At this time, the voltage for Back-up will be
supplied from Lithium battery (CR2032).
* REG: Regulator
* DET: Detector
* F: CR Filter
* CFL: Cool Fluorescent Lamp [Light] (is driven by AC voltage)
* V3MAIN: Source of power supply to main system
logic circuit
VBAT Power supply voltage from Rechargeable Battery
VAMP Power supply voltage to Audio Amp.
V5LCD Power supply voltage to TFT source driver
+VLCD/ -VLCD Power supply voltage to drive LCD directly
V3LCD Power supply voltage to Logic circuits for TFT source driver
V5INV Power supply voltage to DC/ AC inverter to drive CFL
V3RS232C Power supply voltage to RS-232C Driver/ Receiver IC
VCORE Power supply voltage to CORE (cache memory etc.) in CPU
VPLL Power supply voltage to PLL (Phase Locked Loop) circuit in CPU
V3ROM Power supply voltage to ROM, DA Converter (PCM1717) to drive Audio Amp , V-RAM & IrDA Module
V3SYS Power supply voltage to CPU & Gate Arrays mainly
VPIU Power supply voltage to Touch Panel Interface circuit in CPU
VAD/ VDA Power supply voltage to AD/ DA Converter in CPU
VOSC Power supply voltage to the oscillator circuit in CPU
V3RAM Power supply voltage to D-RAM
V3REC Power supply voltage to MIC Amp & AGC