User Guide

Block Diagram 3-2 Baseband Block Diagram
3-2
Audio Interface
Audio Interface
RF
Interface
Serial Data
Interface
BB
Interface
GSM
Processor
(AD6426)
Voiceband/Baseband
Codec
(AD642d1)
I/Q BB
Filter
SIM card
Interface
Li-on Battery
(3.6V, 1000mAh)
KeyPad
EEPROM
Graphic
LCD
Flash
ROM
System RAM
DC/DC
Converter
LDO
Regulators
I/O Interface
+3V SIM Card
+5V SIM Card
Batteru Voltage
Battery Temperature
I,Q
PLL
13Mhz Clock
3V SYNTH
3V BRIGHT
XVCC
3V TX
VCC
AVCC
RTC 3V3
Ramp cont.
AGC
AFC
Head set
Buzzer
SPK
Mic.
Charging
Circuit