SL1711
0.22MHz
0.7V pk-pk
RF I/P
from
LNB
480MHz IF
Data
Stream
ADC
I
I/P
Filter
QPSK
Demod & FEC
(VP305)
IF
Filter
TUNER
(SL2015)
2x6 bit, 90MS/s
(VP216)
(SL1711)
AGC
Q
950MHz
2.15GHz
VCO I/p
AGC
Tank
circuit
TANK
VCO
Loop/line
Filters
AGC
PLL SYNTH. options
(SP5658) (3w bus)
2
(SP5055) (I C bus)
2
(SP5655) (I C bus)
RF TUNER
MODULE
2
(SP5659) (I C bus)
Fig.13 Example digital front end architecture
Note: All ICs shown in Fig. 13 are available from Mitel Semiconductor.
14