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BCM7040 Datasheet, PDF (1/1 Pages) Broadcom Corporation. – MPEG2 DIGITAL VIDEO/AUDIO ENCODER | |||
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BCM7040
PRODUCT
®
Brief
BCM7040 MPEG2 DIGITAL VIDEO/AUDIO ENCODER
BCM7040 FEATURES
⢠Single-chip NTSC/PAL MPEG-2 encoding system
⢠MP@ML MPEG-2 video encoder
⢠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: 1â24 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 (64â384 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
⢠Accurate 27-MHz video/audio/PCR time stamps for
exact video/audio synchronization during playback
⢠Dedicated serial/parallel DVB transport stream
interface
⢠I2S/AC-97 stereo audio inputs
⢠PCI 32 bit/33 MHz, PCI DMA master or PCI slave and
16-bit Generic Host interface
⢠Integrated I2C 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
SUMMARY OF BENEFITS
⢠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
Audio A/D
BCM7040
MPEG-2 Encoder
Compressed data
(DVB) output
PCI/Generic interface
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