L64733/34 Tuner-Receiver Chip Set
Integra
2000 Solution for Set-Top Box Manufacturers
Overview
The L64733/34 chip set, a component of the Integra set-top box platform, is a
next-generation tuner and channel receiver that provides a highly integrated,
high-performance solution for digital satellite broadcast TV. The chip set pro-
vides essential tuning and demodulation functions for the set-top platform,
enabling a spectrum of applications, ranging from receive-only digital video
broadcast to high-speed Internet access, IP telephony, Video-on-Demand and
wireless communications. It enables manufacturers to compete in the market-
place by cost-effectively leveraging new digital forms of information and
entertainment in the set-top box platform
Motherboard or Module Implementation
Combining LSI Logic's market-proven channel technology with an advanced
tuner IC in a small, compact design, the chip forms a complete `L band to
bits' system, eliminating the need for tuner cans or additional synthesizer
chips. As a result, the two-chip solution can be implemented directly on the
motherboard or on a module smaller than the size of a credit card.
Manufacturers can develop cost-effective solutions for add-on PC cards or
multiple digital TV front-ends.
The L64733/34 supports a wide range of worldwide DBS applications.
The L64733/34 chip set packs the functional-
ity of multiple components, including the
synthesizer, into two compact, highly inte-
grated devices. The solution ensures maxi-
mum flexibility, reliability and performance,
while reducing costs and delivering world
standards compliance.
LSI Logic's Two-Chip QPSK Tuner/Demodulator
L64733/34 Tuner-Receiver Chip Set
Features
DVB-S and DSS compliant
1-45 MBaud solution
Handles -20 dbm to -70 dbm input range
Two-chip complete receiver function reduces
component count
Internal baseband variable filters replace dis-
crete-fixed filters
Microcontroller enables fast acquisition and
false-lock detection
LSI Logic also offers a worldwide support
organization, with offices located throughout
the world and backed by corporate product-
line and design engineers, to ensure cus-
tomer success with the company's set-top
box products
Design and Implementation Flexibility
Designed for maximum integration, flexibility and reliability, the L64733/34
can be implemented as a standalone direct conversion satellite demodulation
solution for set-top boxes. Or the chip set can be combined with LSI Logic's
SC2000, the other component of the Integra 2000 platform, for a complete
three-chip satellite set-top box solution.
Technical Description
The two chips contain all the functions necessary for satellite QPSK demodu-
lation. The chip set consists of the L64733 zero IF tuner IC, which performs
the RF down conversion, and the L64734, which is the QPSK demodulator.
The zero IF tuner uses two AGC controls, one in the RF amplifier, the other
in the baseband amplifier. The entire range of DBS inputs is covered by this
control.
The synthesizer function is split between the two devices, with the high-fre-
quency VCO and prescaler residing on the tuner IC. The QPSK chip contains
the remaining frequency dividers and tuning control circuitry. A proprietary
frequency doubler in the tuner IC enables use of a lower-frequency tank
circuit, simplifying board design. Accurate quadrature demodulation is per-
formed, and the baseband I and Q signals are amplified and filtered by
adjustable 7-pole Butterworth filters. Automatic DC offset and phase error
adjustment are performed by the Tuner IC.
Tuner IC/QPSK Demod Block Diagram
The L64734 generates the control signals for the L64733 synthesizer using an
on-chip microcontroller to manage the tuning function along with other
acquisition and tracking functions. The L64734 also controls the low-pass
baseband filters and generates the control voltages for automatic gain control
on the L64733.
The chip set delivers key technical advantages over previous or three-chip set
implementations:
Offers a proprietary frequency doubler, used in the synthesizer,
that minimizes board layout effort
Eliminates external IF or baseband filters for lower parts count and
higher reliability
Operates from 1-45 Mbaud for worldwide DBS capability
Complete Solution for Fast Time-to-Market
To accelerate development of set-top box solutions, the L64733/34 is available
with a Developer's Kit, allowing manufacturers to select the option best suited
to their target market and application requirements. The Kit provides the
hardware and software components to shorten development cycles and to
ensure fast time-to-market.
Benefits
Offers international standards compliance,
enabling manufacturers to design one product
for multiple markets and applications
Supports a range of applications, from one-
way digital broadcast delivery to higher func-
tionality applications, providing a migration
path to future capabilities and applications
Offers multiple evaluation platforms for
system and software evaluation, enabling
manufacturers to develop fast time-to-market
solutions
The L64733/34 Evaluation Platform provides full development capabilities.
Order No. I20057
599.3K.CM.L Printed in USA
L64733/34 Tuner-Receiver Chip Set
Complete Solution for Fast Time-to-Market (continued)
The Developer's
Kit consists of a
complete evalua-
tion board with a
PC interface and
MPEG-2 transport
output. Software
to enable system
testing and code
optimization is
included, along with a manual which provides test and evaluation information
and a PC board layout. Complete microcode for the L64734's microcontroller
is included, and developers have the option of customizing the microcode for
their applications.
Direct Conversion Satellite Developer's Kit from NDS
NDS, a leading international expert in MPEG-2 satellite systems and a sys-
tem-design consultant to LSI Logic on the L64733/34 chip set development,
has created a Developer's Kit targeted to set-top box and PC card manufac-
tures. It allows designers to implement a high-performance QPSK demodula-
tion NIM in a small credit card-sized module.
LSI Logic Integra Set-top Development Platform
For designers developing a set-top box solution using the the L64733/34 chip
set, LSI Logic also offers the Integra Set-top Development Platform. It pro-
vides the complete development environment, including complementary
devices, such as the single-chip SC2000 Source Decoder. It permits designers
to implement complete set-top box solutions, ranging from graphics-rich satel-
lite broadcast receiver boxes to advanced entertainment systems supporting
web browsing, video gaming or high-speed Internet access.
As an Integra component, the L64733/34 features all the advantages of this
next-generation platform:
Evolutionary product strategy, ensuring a seamless and cost-effective
migration path to the future
Software compatibility with legacy and new chip sets
Support for open, international industry standards
LSI Logic logo design and Integra are registered trademarks
of LSI Logic Corporation. All other brand and product
names may be trademarks of their respective companies.
LSI Logic Corporation reserves the right to make changes to
any products and services herein at any time without notice.
LSI Logic does not assume any responsibility or liability aris-
ing out of the application or use of any product or service
described herein, except as expressly agreed to in writing by
LSI Logic; nor does the purchase, lease, or use of a product
or service from LSI Logic convey a license under any patent
rights, copyrights, trademark rights, or any other of the intel-
lectual property rights of LSI Logic or of third parties.
Copyright 1999 by LSI Logic Corporation.
All rights reserved.
For more information please call:
Europe +32.11.300.351
408.433.7700 Dept. JDS
www.lsilogic.com
LSI Logic Corporation
North American Headquarters
Milpitas, CA
Tel: 408.433.8000
LSI Logic Europe Ltd
European Headquarters
United Kingdom
Tel: 44.1344.426544
Fax: 44.1344.481039
LSI Logic KK Headquarters
Tokyo, Japan
Tel: 81.3.5463.7821
Fax: 81.3.5463.7820
ISO 9000 Certified
Evaluation board with PC interface and MPEG-2 transport output
Complete documentation
Software, including microcode
Board layout
Schematics
Gerber Files
Bill of Materials
Components of LSI Logic L64733/34 Developer's Kit
PDF 
ZIP