L64733/L64734
Tuner and Satellite
Receiver Chipset
Datasheet
The L64733/34 chipset is designed specifically to meet the needs of
satellite broadcast digital TV and is compliant with the European digital
video broadcast (DVB-S) standard and the technical specifications for
DSS systems. The chipset forms a complete “L-Band to bits” system.
A typical application of the L64733/34 chipset is satellite digital TV
reception in accordance with ETS 300 421.
Figure 1
shows the
L64733/34 chipset satellite receiver implemented in a typical satellite
receiver set-top decoder box.
Figure 1
Block Diagram of Set-Top Decoder Box Using the L64733/34 Chipset
Optional
DRAM
256K x 16
L64733/L64734 Chipset
Satellite In
RF Out
(Loop Through)
L64733
L64734
CO
[7:0]
Optional
Decryption
Engine
/
16
Transport
Demux
8
/
8
/
High-Speed
Port
Microprocessor
Data and
Address Bus
/
2
27 MHz
VCXO
Microprocessor
/
8
Audio
Oversampling
Clock
NTSC
PAL
S-Video
L-Speaker
R-Speaker
PAL / NTSC
Encoder
CCIR601VIDEO
/
8
Audio/Video
Decoder
Audio/Video PES
SDRAM
256K x 64
256K x 32
PCM
Audio DAC
PCM AUDIO
/
3
64/32
The L64733/34 chipset consists of the L64734 Satellite Receiver IC, the
L64733 Tuner IC, and an on-chip synthesizer.
Figure 2
shows a simplified
block diagram of this chipset.
August 2000
Copyright © 1999, 2000 by LSI Logic Corporation. All rights reserved.
1
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