OVERVIEW DVB-T COMPLIANT DEMODULATION L64782, fully integrated, s

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OVERVIEW DVB-T COMPLIANT DEMODULATION L64782, fully integrated, s

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L64782 Single-Chip COFDM Receiver
OVERVIEW DVB-T COMPLIANT DEMODULATION
L64782, fully integrated, single-chip COFDM (Coded Orthogonal Frequency Division Multiplex) receiver, third generation chip Logic's family highly integrated, high-performance solutions digital terrestrial (DTT) broadcast. Following-on from highly successful L64781 L64780 receivers, L64782 fully compliant with DVB-T standards, defined exceeds mandatory requirements today's broadcasters, placing forefront DVB-T receiver design.
size DVB-T 300-744 compliant Includes 10-bit Choice direct (36.167 MHz) (4.57MHz) sampling Digital channel filter eliminates need dual switchable bandwidth filter tuner
PROVEN SOLUTION FAST TIME-TO-MARKET
L64782 comprises COFDM demodulator with direct sampling, DVB-compliant decoder, 10-bit analog-to-digital converter integrated microcontroller. With this device, digital set-top manufacturers have ready-proven, high-performance technology bring DTT-enabled products market quickly cost effectively.
Digital timing recovery 6MHz, 7MHz 8MHz variable bandwidth capability Implements non-hierarchical hierarchical constellations code rates guard intervals Includes digital common phase error correction (CPE) Dual control timing algorithm near optimal echo pre-echo performance Integrated microcontroller automate acquisition, operating mode determination simplify chip control Channel state information protection against multipath interference
MOBILE RECEPTION
L64782 adds robust channel equalizer doppler immunity characteristics predecessors. Performance been enhanced both these critical areas diversity combining interface been added allow L64782 devices interconnected, giving Maximum Ratio Combination (MRC) like performance, where best-in-class mobile performance required. Coupled with small 64-pin TQFP package power features, L64782 ideally suited mobile reception.
Host Serial Tuner
Serializer Detect Digital Timing Recovery Microcontroller
Bits
COFDM Processing
Digital Filtering
Real Complex
L64782 highly integrated device that contains both digital timing frequency loops. external components needed operate demodulation only cost crystal required.
L64782 Single-Chip COFDM Receiver
FEATURES CONTINUED
Fully programmable digital channel filter reject adjacent NICAM interference Further improvement current industry-leading co-channel interference rejection performance Expanded acquisition range fully detect offset Diversity interface optimum Maximum Ratio Combination (MRC) like performance with L64782 devices Reliable chip status reporting Serial microprocessor interface Profile 64-pin TQFP package
TECHNICAL DESCRIPTION
L64782 implements operational modes specified DVB-T specification, i.e., FFT, non-hierarchical hierarchical modulations, guard interval sizes Viterbi code rates. chip supports wide range either direct sampling (including 36.167 4.57 MHz) converts digitally into baseband. L64782 then applies digital processing steps extract data from received signal, i.e., FFT, timing frequency synchronization, channel estimation equalization, generation optimal soft decisions using channel state information plus symbol de-interleaving. also extracts system information carried pilots. L64782 finally applies error correcting codes deliver error-free MPEG2 transport stream source decoding chip. aspects L64782 controlled internal microcontroller, which also provides direct control associated upstream tuner. This results much reduced host driver code complexity, faster acquisition simplified channel scanning with host issuing high level instructions front such "Channel Search" "Channel Jump".
COMPLETE SOLUTION FAST TIME-TO-MARKET
accelerate development set-top solutions, L64782 development available, which allows manufacturers select option best suited their target market application requirements. provides hardware software components necessary shorten development cycles ensure fast time-to-market. powerful Windows Graphical User Interface allows manufacturers easily perform validation tests store results intuitive way. development consists complete evaluation board with interface MPEG2 transport stream output. Software enable system testing code optimization, along with manual that provides test evaluation information board layout also included. software operate under Windows 95/98 Windows NT/2000. NIM782 board also seamless interface Logic's Set-top Development Platform.
BENEFITS
Fully integrated single-chip COFDM DVB-T compliant demodulator fast time-to-market Systems expertise support gained from first- second- generation chips Minimal effort required implementation complete COFDM system Rapid time frequency synchronization
NIM782 Evaluation Board provides full capabilities accelerated development fast time-to-market
Excellent mobile reception power (Less than Reduced systems costs through common phase error compensation direct sampling Near theory high-performance demodulation algorithm Fast access circuit evaluation with local field application engineering
LOGIC INTEGRA® SET-TOP DEVELOPMENT PLATFORM
designers developing set-top solution using L64782 chip, Logic offers Integra Set-top Development Platform. This provides complete development environment, including complementary devices such single-chip SC2005 source decoder, enabling designers implement complete two-chip set-top solution.
Components Logic's L64782 Developer's
Evaluation board with interface MPEG2-TS output Complete documentation Software, including driver interface under Windows Microcode download into L64782's integrated microcontroller Board layout Schematics Bill materials
support Requires only thin host driver with L64782 integrated microcontroller providing high level automation including tuner control
L64782 Single-Chip COFDM Receiver
Integra component, L64782 features advantages this next-generation platform: Evolutionary product strategy, ensuring seamless cost-effective migration path future Software compatibility with legacy chipsets Support open, international industry standards
more information please call: Logic Corporation
North American Headquarters Milpitas, Tel: 5741
Logic Europe Ltd.
BACKGROUND
L64780 L64781 were jointly developed Logic Research Development, collaboration that continued with L64782. BBC, influencer acceptance European DVB-T standard, implemented hardware prototypes COFDM modem successfully tested over experimental broadcasts other European locations. 1998, tests field trials carried Research Development other validation groups verified performance interoperability system highlighted L64780 best performing chipset marketplace. L64781 subsequently benefited from various field validations carried L64780, ensuring high-performance device. April 2001, Research Development Logic jointly received Queen's Award Enterprise, category Innovation, L64780 L64781.
European Headquarters United Kingdom Tel: 1344 426544 Fax: 1344 481039
Logic Headquarters
Tokyo, Japan Tel: 5463 7165 5463 7820
LSI: Logic site:
www.lsilogic.com
Logic logo design Integra trademarks registered trademarks Logic Corporation. other brand product names trademarks their respective companies. Logic Corporation reserves right make changes products services herein time without notice. Logic does assume responsibility liability arising application product service described herein, except expressly agreed writing Logic; does purchase, lease, product service from Logic convey license under patent rights, copyrights, trademark rights, other intellectual property rights Logic third parties.
Copyright ©2002 Logic Corporation. rights reserved.
Order I20098 502.1k.JS.IK Printed

OVERVIEW DVB-T COMPLIANT DEMODULATION L64782, fully integrated, s

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