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KX-TG4111MEB/KX-TG4112MEB/KX-TGA410MEB
4.4.3.
Power Supply Circuit/Reset Circuit
The power supply voltage from AC adaptor is converted to VBAT (3.0V) in IC302. And +3.0V for peripherals and analog part is
insulated from VBAT by Doubler of BBIC.
Circuit Operation:
5.5V
AC Adaptor
VBAT
VDDC (1.2 V)
Reset (RSTN)
(IC501_54 pin)
Startmonitor
(IC501 57pin)
(CKM/STM)
VBAT
IC302
3.0V
RSTN(Reset)
REGULATOR
STM/CKM
BBIC chip initialize
IC501
VBAT
pin 15
pin 10
DOUBLER OUT
For peripherals
BBIC
pin 54
VDDC (1.2V)
pin 57
pin 9
RF Part
12
+3.0V
IC611
EEPROM
Receive
Amp.
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