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6. SGH-P400 Block Diagrams
6-
1
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1. RF Solution Block Diagram
Antenna
ASM
RF
FILTER
RF
FILTER
SI4200
SI4133T
π/ 2
RF
PLL
PGA
SERIAL DATA
INTERFACE
GSM:890MHz~
915MHz
PCS:1850MHz~1910MHz
PAM
GSM:925MHz~
960MHz
PCS:1930MHz~1990MHz
I,Q
CSP1093
TRIDENT
DSP16000
ARM7TDMI
UI
SERIAL
DATA,
CLK,
LE
RF
FILTER
DCS:1805MHz~1880MHz
L
N
A
PGA
A D C
A D C
IF
PLL
DCS:1710MHz~1785MHz
D E T
100KHz
CHANNEL
FILTER
D A C
D A C
PGA
PGA
R
X
TCVCXO
13 MHz
C L K
A F C
T
X
I,Q
SI4201