User Guide

4. Block Diagrams
4-1 Main Base Band
4-1 Block Diagrams
Battery
Type
Battery Voltage
Temperature
3VTXRX
XVCC
LED 3V3
RTC VCC
AVcc LDO
Vcc LDO
Serial Data
Interface
I/O
Interface
A/D
Interface
AGC,AFC
PLL
Load S/W
Charging
Circuit
Li-Ion Battery
(Standard)
ONE C
VIBRATOR
SYSTEM CLOCK
(13MHz)
SRAM
EEPROM
RTC_CLOCK
(32.768KHz)
KEY_BOARD
SIM CARD
SPEAKER
MIC
BB INTERFACE
RF INTERFACE
Charging
Current
LCD
YMU