3-2
Samsung Electronics
3-2 Baseband Block Diagram
VCC
RTC VCC
LDO
Regulator
Ni_MH Battery (3.6V)
System
Clock
System
RAM 4M
System
memory
Flash
ROM 16M
EEPROM 128K
8M ROM (Voice
Recognition)
KeyPad
Graphic LCD
SIM Card
B.B Interface
DC/DC
Converter
RF Interface
Serial Data
Interface
+3V SIM Card
+5V SIM Card
Battery Voltage
Battery
Temperature
3V Tx
3V SYNTH
3V BRIGHT
AVCC
I/O Interface
A/D Interface
I/O BB Filter
AGC, AFC
PLL
LDO
Regulators
BB
3.0V
3.6V
3.6V
3.0V
RF
GSM/DCS
VOCODER
Memory
Charging Circuit
Li_lon Battery (3.6V)
GSM/DCS
KERNEL 5
3.3V