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6. SGH-E620 Block Diagrams
6-1 RF Part
GSM:925MHz~960MHz
Antenna
DCS:1805MHz~1880MHz
RF
FILTER
PCS:1930MHz~1990MHz
FEM
GSM:890MHz~915MHz
PAM
DCS:1710MHz~1785MHz
PCS:1850MHz~1910MHz
L
PGA
N
A
PGA
1 / 2
SI4205
DET
TX VCO
RF
PLL
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ADC
CHANNEL
FILTER
ADC
100KHz
CLK
IF
PLL
6-1
CSP2600
PGA
I
DAC
PGA
Q
DAC
SERIAL DATA
BASE
INTERFACE
BAND
I
Q
TCVCXO
13MHz
AFC
TXPOWER
UI
AUDIO
TRIDENT
DSP16000
ARM946
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