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5. SGH-N620E Block Diagrams
1. Main Baseband
MIC
SYSTEM CLOCK
(13MHz)
SRAM
FLASH
EEPROM
RTC_CLOCK
(32.768KHz)
KEYPAD
LCD
SPEAKER
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BB INTERFACE
SERIAL DATA
INTERFACE
INTERFACE
A/D
ONE C
INTERFACE
RF INTERFACE
AFC
PLL
Li-ion BATT
(STANDARD)
CHARGING
CIRCUIT
5-1
SIM CARD
BATTERY TYPE
I/O
BATTERY
VOLTAGE
PHONE
TEMPRATURE
CHARGING
CURRENT
XVCC
3VRF
VDD3.0
AVCC2.5
LVCC
RTC_VCC
LED3V3
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