參數(shù)資料
型號: L64733C-48
廠商: LSI CORP
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: TQFP-48
文件頁數(shù): 23/52頁
文件大?。?/td> 552K
代理商: L64733C-48
L64733C/L64734 Tuner and Satellite Receiver Chipset
3
Figure 3
Detailed Chipset Block Diagram
Filter
Matched
Filter
Carrier
Loop Control
AGC
Control
Timing Loop
Control
Output
Control
I
Q
1/T
Descrambler
Dual
ADC
Interpolator/Decimation
External Microcontroller Interface
Clk
(from L64734
on-chip PLL)
Xtal
Osc
Phase
RF In
RF Out
RF
Charge
Pump
Fc
90
°
VCO
X2
Tank
Circuit
PLLIN
FDOUB
MOD
PSOUT
CPG
A
GC1
INSEL
IOUT
QOUT
FLCLK
Synthesizer Control Module
L64734
L64733C
Detect.
Filter
Control
Module
Amp
To external
Loop Filter
÷
by 8
Quadrature
Down-Converter
2
A
GC2
4–7.26 MHz
BPSK/QPSK
Demodulator
Microcontroller Data and Address Bus
FEC Decoder Pipeline
Channel
Output
(MPEG-2
Transport
Stream)
Reed-
Solomon
Decoder
Convolutional
Deinterleaver
Reed-
Solomon
Synchronizer
Viterbi
Synchronizer
Viterbi
Decoder
Switch
2
LOBUF
LODIV
÷32/33
or
÷1/2
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