L64734 Datasheet, PDF (1/48 Pages) LSI Computer Systems – Tuner and Satellite Receiver Chipset

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
Optional
Decryption
Engine
Satellite In
RF Out
(Loop Through)
L64733/L64734 Chipset
L64733
L64734
/ ₁₆
/8
CO
[7:0]
Transport
Demux
8_/
High-Speed
Port
Microprocessor
Data and
Address Bus
Microprocessor
NTSC
PAL
S-Video
L-Speaker
R-Speaker
PAL / NTSC
Encoder
PCM
Audio DAC
/2
27 MHz
CCIR601VIDEO
/
8
PCM AUDIO
/₃
VCXO
/ _{8 Audio}
Oversampling
Clock
Audio/Video _{Audio/Video PES}
Decoder
64/32
SDRAM
256K x 64
256K x 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
1
Copyright © 1999, 2000 by LSI Logic Corporation. All rights reserved.