HIGH DEFINITION VIDEO SUBSYSTEM WITH GRAPHICS ATSC-compliant, All

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HIGH DEFINITION VIDEO SUBSYSTEM WITH GRAPHICS ATSC-compliant, All

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BCM7020R
HIGH DEFINITION VIDEO SUBSYSTEM WITH GRAPHICS
ATSC-compliant, All-Format MP@HL MPEG-2 video dual decoder with personal video recording feature
Dual channel decode with simultaneous standard definition (SD) display each channel content Single channel high definition (HD) decode with simultaneous display both scaled content Simultaneous dual record, dual playback personal video recording (PVR) with encryption on-chip video DACs playback
solution Provides cost-effective video andfor high definition standard definition graphics systems
common cable satellite applications capability enables personal viewing scheduling, video-on-demand (VOD), "trick mode" effects video stream
Encryption ensures copy protection recorded programming content
(AC-3)/MPEG Dolby Digital SPDIF output multichannel audio decoder with Stereo audio DACs Advanced 2D/3D-effects graphics engine
Studio-quality text graphics resolution Supports multiple layers windows
Includes 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 adds whole dimension electronic program guides interface allows direct connection costeffective SuperI/O devices High-performance capability used cable modem traffic Broadcom-developed device drivers enable rapid software development cycle Supports requirements
NTSC/PAL analog video decoder NTSC/PAL/HD video encoder bridge memory, local bus, support including descrambler DC2-compliant transport demultiplexer with DVB, DES, Multi2 descramblers Support PIDs section filters
BCM7020 Advanced Video, Graphics, Audio Subsystem with Bridge
Dual Smart Card
MIPS
2-KB Instruction/ Data Cache Video Audio Demod Analog NTSC/PAL Video MPEG
ROM/ Flash
BCM4413 HPNA/V.90 10/100 BASE-TX
SDRAM
Duplex Filter/ Splitter Video Data Silicon Tuner Video
Upstream Data
BCM3250 Dual QPSK QPSK transmitter DOCSIS DAVIC VoIP
BCM7020
Dual Video Analog Audio SPDIF Audio Interfaces
Controller
1394 Interface
BCM3125 Transceiver
Interface
PCMCIA
SDRAM
Analog Video
Composite Video Decoder
Bridge
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 Transport Transport Transport
MPEG-2 Transport Processor with Descramblers Dual Engine
Interface Access Caches
(2-KB instruction/ data cache)
Paxel Video/ Graphics Processor
Dolby MPEG Audio Decoder
Audio
Audio Dual
Stereo Audio DACs
SPDIF
Dual ISO7816
BCM7020 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 standard definition 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. BCM7020 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 anti-aliasing, creating rich, high-quality, display capability. onboard vector RISC processor provides graphics, anti-aliased text, effects. MPEG-2 DVB/DC2-compliant transport demux with transport stream inputs advanced section filtering capability, descrambler, descrambler with ECB/CCB capability, ISO7816 smart card interfaces. descrambler complies 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.
BCM7020 simultaneously supports record playback streams with optional 3DES encryption/decryption. BCM7020 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. bridge incorporated provide complete solution bridging processor memory, local I/O, PCI. Main memory shared among video, graphics, CPUs, which increases system performance reduces cost. flexible powerful controller offloads transfering data between different busses memory, facilitating needs systems incorporating cable modem. playback realizable. on-chip MPEG video decoder ability parse streams extracted from program streams found DVDs. AC-3 audio decoded either stereo Dolby ProLogic output either on-chip and/or SPDIF interface. audio engine also output native AC-3 streams directly SPDIF. Sub-picture decoding rendering handled host on-chip graphics processor. With assistance software running external CPU, complete playback system realized.
Broadcom®, pulse logo, Connecting everything® trademarks Broadcom Corporation and/or subsidiaries United States certain other countries. other trademarks property their respective owners.
BROADCOM CORPORATION 16215 Alton Parkway, P.O. 57013 Irvine, California 92619-7013
2002 BROADCOM CORPORATION. rights reserved. 7020-PB08-403-R 11.19.02
Phone: 949-450-8700 FAX: 949-450-8710 Email: info@broadcom.com Web: www.broadcom.com

HIGH DEFINITION VIDEO SUBSYSTEM WITH GRAPHICS ATSC-compliant, All

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