HIGH-DEFINITION VIDEO SUBSYSTEM WITH GRAPHICS FEATURES ATSC-compl

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HIGH-DEFINITION VIDEO SUBSYSTEM WITH GRAPHICS FEATURES ATSC-compl

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BCM7021
HIGH-DEFINITION VIDEO SUBSYSTEM WITH GRAPHICS
FEATURES ATSC-compliant, All-Format MP@HL MPEG-2 video SUMMARY BENEFITS Provides cost-effective solution high-definition
decoder Decodes four MP@ML video streams Standard-definition output with reduced memory requirements Simultaneous analog output Dolby Digital (AC-3)/MPEG multichannel audio decoder with SPDIF output Dual bidirectional audio ports Stereo audio DACs
Advanced 2D/3D-effects graphics engine
Studio-quality text graphics resolution Supports multiple layers windows NTSC analog video decoder NTSC/PAL/HD video encoder
compliant support including descrambler DC2-compliant transport demux with
descramblers
interface provides bi-endian support
masters maximum system design flexibility. SuperI/O devices
standard-definition video graphics systems common cable satellite applications. Includes standard definition with reduced memory mode Simultaneous high-definition standard-definition analog output watch record capability. Advanced graphics system allows applications such internet browsers electronic program guides deliver studio-quality text graphics television monitors effects create studio-quality screen transitions whole dimension electronic program guides. Personal video recorder capability supports VCR-like functions hard disk. High-performance capability used cable modem traffic Broadcom-developed device drivers enable rapid software development cycle Supports requirements
Simultaneous CCIR-656 inputs outputs Support PIDs section filters
interface allows direct connection cost-effective
BCM7021 Advanced Video, Graphics, Audio Subsystem
Dual Smart Card Ch3/4 S-Video Comp-Vid In/Out YCrCb Audio In/Out SPDIF Audio RJ11 BCM4100 Video Condition 7816 Analog video BCM7501 10/100 BaseTx
BCM7021 Video/Graphics
BCM4413 HPNA/V.90
Ethernet MAC/PHY Slot
Video Data Cable Dual Tuner with Diplex filter Upstream
BCM3250 Dual QAMlink QPSK QPSK transmitter DOCSIS DAVIC VoIP
BCM7014 Graphics Engine with NTSC Encoder Decoder/ System Controller BCM7010 MPEG A/V, Transport Audio DACs
SDRAM
SDRAM
Bridge Chip
RS-232
CXD3204R IEEE1394 1394 (dual)
MIPS
Printer
PCMCIA
remote keyboard
OVERVIEW
64-bit SDRAM
Analog Video
Composite Video Decoder
Interface
SDRAM Controller
Engine Video Scaler
Graphics Video Display Engine Display Format Conversion
Dual Composite Video Encoder DACs
HD/SD analog video analog video
HD/Dual MPEG-2 Video Decoder band band band
MPEG-2 Transport Processor with Descrambler
Dual Engine
Paxel 2D/3D Graphics Processor
Dolby MPEG Audio Decoder
Audio
Stereo Audio DACs
Audio Dual SPDIF Audio
SPDIF
Dual 7861 Interface
BCM7021 Advanced High-Definition Video Graphics Subsystem supports requirements television set-top systems that require high-definition standard-definition decoding MPEG-2 streams with simultaneous high-definition standarddefinition outputs. systems that require only standard-definition output, reduced-memory mode substantially reduces amount memory needed video decompressions process. video decoder also supports multiple stream standard-definition decoding, providing both tiled video capability. BCM7021 graphics based Broadcom's advanced video/ graphics technology that allows studio-quality text graphics displayed television-based systems. graphics compositing engine allows many windows graphics video layered with blending antialiasing, creating high-quality, rich display capability. on-board vector RISC processor provides graphics, antialiased text, effects.
MPEG-2 DVB/DC2-compliant transport demux with three transport stream inputs advanced section filtering capability, descrambler, descrambler with ECB/CCB capability, ISO7816 smart card interfaces. descrambler compliant with requirements transport stream interface. transport engine designed support personal video recorder (PVR) functions, allowing set-top support VCR-like functions, such fast forward/reverse, pause, record. BCM702 supp orts reco ybac stream simultaneously. BCM7021 decodes both Dolby Digital (AC-3) MPEG multichannel compressed streams. Audio output provided over stereo DACs SPDIF. audio engine mixes separate audio streams generated from MPEG2/Dolby audio decompression circuitry, audio generated from CPU, audio input baseband audio input. These streams resampled mixed together with volume control. BCM7021 ideal solution where maximum system design flexibility performance key. bi-endian architecture full capability work with system configuration.
Broadcom®, pulse logo, Connecting everything® trademarks Broadcom Corporation and/ subsidiaries United States certain other countries. other trademarks mentioned property their respective owners.
BROADCOM CORPORATION 16215 Alton Parkway, P.O. 57013 Irvine, California 92619-7013
2004 BROADCOM CORPORATION. rights reserved. 7021-PB03-R 07/06/04
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

HIGH-DEFINITION VIDEO SUBSYSTEM WITH GRAPHICS FEATURES ATSC-compl

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