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L64733C Datasheet(PDF) 3 Page - LSI Computer Systems

Part # L64733C
Description  Tuner and Satellite Receiver Chipset
PDF  48 Pages
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Manufacturer  LSI [LSI Computer Systems]
Direct Link  http://www.lsicsi.com
Logo LSI - LSI Computer Systems

L64733C Datasheet(HTML) 3 Page - LSI Computer Systems

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L64733/L64734 Tuner and Satellite Receiver Chipset
3
Figure 3 shows a more detailed chipset block diagram.
Figure 3
Detailed Chipset Block Diagram
Filter
Matched
Filter
Carrier
Loop Control
AGC
Control
Timing Loop
Control
Output
Control
DEMI
DEMQ
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
Dual-
Tank
Circuit
Synthesizer Control Module
L64734
L64733
Detect.
Filter
Control
Module
Amp
To External
Loop Filter
÷
by 8
Quadrature
Down-Converter
4–7.26 MHz
Modulus
Prescaler
BPSK/QPSK
Demodulator
Microcontroller Data and Address Bus
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



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