Mixer 1
1805-1880MHz
Mixer 2
LNA
I
LC .I
Rx IF SAW
Filter PGA I&Q Demo.
SAW Filter
Q
(45MHz)
filter (225MHz)
925-960MHz .Q
LNA
45MHz
CLK
Serial data
SDATA
bias circuit
interface
LE
Rx filter
GSM : 1150-1185MHz
Dual synth.
PCN : (Rx) 1580-1655MHz
(Tx) 1575-1650MHz 270MHz
90Ú
Shift
PLL1 RF VCO
HD155121F
÷ 2
÷ 2
PLL2
90MHz
Dip.
÷ 6
VC1 IF VCO
540MHz
90Ú
VC2 DCS : 270MHz
Shift
÷ 2
GSM : 540MHz
LPF LPF
VCTCXO
Ant. S/W 13MHz
GSM : 270MHz
DCS : 135MHz
GSM : 270MHz
DCS : 135MHz
880-915MHz
I
.I
Directional Loop Phase I&Q
1710-1785MHz Coupler fitter Detector Mod.
Q
.Q
PA Module
APC
Tx VCO
3-1
3-1 RF Block Diagram
3. Block Diagram
Block Diagram
Head set
Buzzer
Audio Interface
SPK
Voiceband/Baseband
Codec
Mic.
(AD642d1)
Batteru Voltage
I/Q BB
Flash Filter
Audio Interface
ROM
Battery Temperature
I,Q
System RAM
Ramp cont.
RF
AGC
Interface AFC
PLL
13Mhz Clock
GSM
Processor Serial Data
Graphic
(AD6426) Interface
LCD
BB
Interface
3V SYNTH
I/O Interface
3V BRIGHT
EEPROM
SIM card
+3V SIM Card
Interface
+5V SIM Card
XVCC
3V TX
Charging
Circuit
KeyPad
VCC
Li-on Battery DC/DC LDO
AVCC
(3.6V, 1000mAh) Converter Regulators
RTC 3V3
Block Diagram
3-2 Baseband Block Diagram
3-2
Rx filter 2nd Regulator Filter FET Switch
FRT 4.1V
INPUT
9V DC
Reference
LED
Voltage
Switching TR
Circuit
UVLO
Overcurrent Protector
Battery Type Detector
Overheat
Charge Voltage Detector
MPU
Protector
Charge Voltage Selector
Static Current Circuit
Feed Back FET Switch
Static Voltage Circuit
REAR 4.1V
3-3
3-3 DTC Block Diagram
Block Diagram
5V
Regulator
Power
Power DC/DC Current
Stabilizer
(12V-28V)
Control Regulator Delector
Voltage/Current
Ignition
Feed Back
MICOM
Data
Communication
EEPROM DSP
TX
Amp
Calibration
CODEC
RX
Amp
Microphone
Volume Audio
Speaker
Control Amp
Block Diagram
3-4 HFK Block Diagram
Cradle
3-4