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4. Block Diagrams
4-1 Main Baseband
SGH-R225 Block Diagrams
4-1
Batter
y
T
ype
Batter
y
V
olta
g
e
Batter
y
T
emperature
3VTX
XVCC
ALER
T_VCC
Serial Data
Interface
I/O
Interface
A/D
Interface
A
GC,AFC
PLL
LO
AD
SWITCH
Char
ging
Cir
cuit
Li-Ion Batter
y
(Slim,
Standar
d
Long)
ONE C
VIBRA
T
O
R
SYSTEM CLOCK
(13MHz)
SRAM
FLASH
EEPR
OM
R
TC_CLOCK
(32.768KHz)
KEYP
AD
SIM CARD
SPEAKER
MIC
LCD
BB INTERF
A
C
E
RF INTERF
A
C
E
D
VCC 2.5
A
VCC 2.5
VDD 3.0
3VRF