– 10–1 –
G
S
M Processor
(A
D652
5
)
Keyboard
R.F.
Block
BBCLK
Vibrator
Memory
Flash/SRAM
(64MB /
16MB)
ADC/DAC
VoiceBand
&
Base Band
Codec.
(AD6521)
Pow
e
r
M
a
nagement
(ADP652
2
)
RT
C
Cry
s
ta
l
RTC
Battery
LCD Module
Backlight
LED
MIC
Speaker
SIM
Socke
t
Keypad Data Bus
CLKIN
OSC
32.768kHz
Data Bus
Address Bus
LCD Control Bus
A,V,B
serial Port
RF Control Bus
GPIO12
GPO22
EXTPWR
USC Data Bus
VBA
T
SIM interface
VCC
Li-Ion
Battery
VC
O
R
E
V
BAT
VANA
VA
N
A
VANA
VCORE
VCORE
VBAT
LCD_PWR
TX IQ
RX IQ
Control Signal
VTCXO
VT
C
X
O
VMEM
VRT
C
VRTC
Handfree input
HANDFREE IN
GPIO6
LDO 3.0V
Receiver
VMEM
VMEM
SIMVCC
VS
IM
Power
Jack
OverVoltage
Protect Circuit
Charging
Circuit
P MOSFET
VMEM
VRTC
SIMVC
C
Buffer
VTCXO
13MHz_BB
Melody IC
Control/Data
Interface
VOUTNOR P/N
YMU_AVCC
Phone
Jack
VOUT AUX P
Buzzer (L_SPK Mode)
VINNOR P/N
VINAUX P/N
HPOUT
TX/RX
BACKLIGHT
Charging control interface
LDO 3.0V
V_LED
White LED
DRV 4.5V
V_LED
An
a
lo
g
Sw
itch
PJ_FUNC_SEL
TX/RX
Audio
GPIO13
PJ_FUNC_SEL
10. BLOCK
DIAGRAM
10.1. Block Diagram of Base Band