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BCM7040 PRODUCT (R) Brief ENCODER BENEFITS OF BCM7040 MPEG2 DIGITAL VIDEO/AUDIO SUMMARY BCM7040 FEATURES * Single-chip NTSC/PAL MPEG-2 encoding system * MP@ML MPEG-2 video encoder Fully integrated Encoder * and Video/AudioMPEG-2 DigitalaVideo/Audiodrastically Multiplexer in single chip * High-fidelity 24/56 bits programmable audio DSP * Variable resolutions: Horizontal: 720,704,640,544,480,360,320,160 Vertical: 480,240,112 (NTSC); 576,288,144 PAL * Variable frame rate, up to 30(NTSC)/25(PAL) fps * Supports constant/variable bit rates: 1-24 Mbps * Variable GOP length and structure: I, IP, IPB, IPBB * +/-100 pixels wide motion estimation search range * Automatic 3/2 pulldown detection * Video input: selectable 8/10 bits CCIR656 * 4:2:2 to 4:2:0 conversion * MPEG-1 Layer II stereo encoding * Dolby Digital (AC-3) stereo encoding * Programmable frequencies and bit rates (64-384 Kbps) * CBR/VBR program/transport stream multiplexing * User data/VBI insertion * Programmable stream parameters * * * * * * Highly programmable system multiplexing processor * Video pre-processing reduces overall system and development costs. Video/Audio Elementary, Video/Audio Packetized Elementary, Program, and Transport Streams are generated internally to the BCM7040. Broadcom third generation production of field-proven and in-production technology. Universal compatibility through standards compliance: Video Encoding (ISO/IEC 13818-2), Audio Encoding (ISO/IEC 11172-3, MPEG-1, Layer II and Dolby Digital AC-3) and System Multiplexing (ISO/IEC 13818-1). Broadcom-developed reference design kit includes application board, sample application, and drivers based upon industry-standard operating systems, enabling rapid and streamlined software and hardware development, reducing time to market. Simple system design: BCM7040 + single SDRAM. APPLICATIONS * Time shift/personal video recording (PVR): * DVD recorders * Digital VCRs (VCR replacements) * PC TV tuners * Digital camcorders * Video transmission * Video over IP * Video conferencing * Security and surveillance System Block Diagram Video A/D 2M x 32 SDRAM video/audio/PCR time * Accurate 27-MHz synchronization duringstamps for exact video/audio playback Dedicated * interface serial/parallel DVB transport stream * I S/AC-97 stereo audio inputs PCI 32 bit/33 * 16-bit GenericMHz, PCI DMA master or PCI slave and Host interface * Integrated I C controller * Package: 176-pin LQFP * Supply voltage: I/O 3.3V (5V compatible) * Power consumption: less than 1W * System memory: SDRAM, 1 module of 2M x 32 2 2 * 7-tap vertical/horizontal luminance/chrominance filter * Set-top boxes * Stand-alone PVRs * Television sets BCM7040 Audio A/D MPEG-2 Encoder Compressed data (DVB) output PCI/Generic interface |
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