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L64733C/L64734 Datasheet

  • L64733C/L64734

  • L64733C/L64734 Tuner and Satellite Receiver Chipset data she...

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L64733C/L64734 Tuner and
Satellite Receiver Chipset
Datasheet
The L64733C/734 chipset is designed for satellite broadcast digital TV. It
is compliant with the European digital video broadcast (DVB-S) standard,
as well as the technical speci鏗乧ations for DSS systems. The
L64733C/734 chipset forms a complete 鈥淟-band-to-bits鈥?system.
A typical application of the L64733C/734 chipset is satellite digital TV
reception in accordance with the ETS 300 421 standard. Figure 1 shows
the L64733C/734 chipset satellite receiver implemented in a typical
satellite receiver set-top decoder.
Figure 1
Set-Top Box Block Diagram
27 MHz
VCXO
FLASH
SDRAM-B
SDRAM-A
Expansion
Bus
Analog
Audio
Analog CVBS
Analog Y/C
Analog RGB
Digital Video
Satellite
RF Signal
L64733C
Tuner
L64734
Demodulator
OP
AMPs
SC2000
Single-Chip
Source Decoder
Serial Bus
IEEE
1284
Smart
Cards
RS232-C
Interface
CODEC
I/R
Rx & Tx
GPIO
Pins
The L64733C Tuner IC directly down-converts the satellite signal from
L-band to baseband; it includes an on-chip synthesizer. Using frequency
information programmed into its con鏗乬uration registers, the L64734
Satellite Receiver generates control signals for the L64733C synthesizer.
The L64734 also controls the programming of the low-pass 鏗乴ters on the
February 2001
Copyright 漏 2000, 2001 by LSI Logic Corporation. All rights reserved.
1

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