BCM7040 PRODUCT Brief ® BCM7040 MPEG2 B C M 7 0 4 0 DIGITAL • 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 • High-fidelity 24/56 bits programmable audio DSP • MPEG-1 Layer II stereo encoding • Dolby Digital (AC-3) stereo encoding • Programmable frequencies and bit rates (64–384 Kbps) • Highly programmable system multiplexing processor • CBR/VBR program/transport stream multiplexing • User data/VBI insertion • Programmable stream parameters • Video pre-processing • 7-tap vertical/horizontal luminance/chrominance filter 27-MHz video/audio/PCR time stamps for • Accurate exact video/audio synchronization during playback Dedicated serial/parallel DVB transport stream • interface • I S/AC-97 stereo audio inputs PCI 32 bit/33 MHz, PCI DMA master or PCI slave and • 16-bit Generic 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 S U M M A R Y F E AT U R E S • Single-chip NTSC/PAL MPEG-2 encoding system • MP@ML MPEG-2 video encoder 2 VIDEO/AUDIO O F ENCODER B E N E F I T S Fully integrated MPEG-2 Digital Video/Audio Encoder • and Video/Audio Multiplexer in a single chip drastically • • • • • 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. A P P L I C AT I O N S • Time shift/personal video recording (PVR): • Set-top boxes • Stand-alone PVRs • Television sets • DVD recorders • Digital VCRs (VCR replacements) • PC TV tuners • Digital camcorders • Video transmission • Video over IP • Video conferencing • Security and surveillance System Block Diagram 2M x 32 SDRAM Video A/D BCM7040 Audio A/D MPEG-2 Encoder Compressed data (DVB) output PCI/Generic interface