L64704 LSI Logic Corporation, L64704 Datasheet - Page 20

• Manufacturer Part Number: L64704
• Description: Satellite Decoder Technical Manual 5/97
• Manufacturer: LSI Logic Corporation

Figure 1.3
Typical Receiver Block
Diagram with L64704
1-4
From
LNB
Synthesizer
Frequency
MHz
480
IF
SAW
LSI Logic offers circuits that make up the most complex portions of the
logic found in a Set-Top Decoder box. These circuits include the:
For more information on the other integrated circuits in the Set-Top
Decoder box, see their associated manuals.
Figure 1.3
L64704.
The receiver block receives the microwave channel data from the satellite
dish, demodulates and decodes it, and outputs an MPEG-2 transport
stream.
Introduction
L64704 Satellite Decoder
L64007 MPEG-2 Transport Demultiplexer
L64002 MPEG-2 Audio/Video Decoder
Amplifier
Control
AGC
Loop
Filter
Gain
shows a block diagram of a satellite tuner that includes the
Microcontroller
Converter
Down
VCO
Loop
Filter
I/Q
ADC
Dual
VCO
Loop
Filter
L64704
(MPEG-2
Transport
Channel
Stream)
Output