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ADV601LC Folha de dados(PDF) 1 Page - Analog Devices |
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ADV601LC Folha de dados(HTML) 1 Page - Analog Devices |
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1 / 44 page  REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a ADV601LC One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999 Ultralow Cost Video Codec FUNCTIONAL BLOCK DIAGRAM FEATURES 100% Bitstream Compatible with the ADV601 Precise Compressed Bit Rate Control Field Independent Compression 8-Bit Video Interface Supports CCIR-656 and Multi- plexed Philips Formats General Purpose 16- or 32-Bit Host Interface with 512 Deep 32-Bit FIFO PERFORMANCE Real-Time Compression or Decompression of CCIR-601 to Video: 720 288 @ 50 Fields/Sec — PAL 720 243 @ 60 Fields/Sec — NTSC Compression Ratios from Visually Loss-Less to 350:1 Visually Loss-Less Compression At 4:1 on Natural Images (Typical) APPLICATIONS PC Video Editing Remote CCTV Surveillance Digital Camcorders Digital Video Tape Wireless Video Systems TV Instant Replay GENERAL DESCRIPTION The ADV601LC is an ultralow cost, single chip, dedicated function, all digital CMOS VLSI device capable of supporting visually loss-less to 350:1 real-time compression and decom- pression of CCIR-601 digital video at very high image quality levels. The chip integrates glueless video and host interfaces with on-chip SRAM to permit low part count, system level implementations suitable for a broad range of applications. The ADV601LC is 100% bitstream compatible with the ADV601. The ADV601LC is a video encoder/decoder optimized for real- time compression and decompression of interlaced digital video. All features of the ADV601LC are designed to yield high perfor- mance at a breakthrough systems-level cost. Additionally, the unique sub-band coding architecture of the ADV601LC offers you many application-specific advantages. A review of the Gen- eral Theory of Operation and Applying the ADV601LC sections will help you get the most use out of the ADV601LC in any given application. The ADV601LC accepts component digital video through the Video Interface and outputs a compressed bit stream though the Host Interface in Encode Mode. While in Decode Mode, the ADV601LC accepts a compressed bit stream through the Host Interface and outputs component digital video through the Video Interface. The host accesses all of the ADV601LC’s con- trol and status registers using the Host Interface. Figure 1 sum- marizes the basic function of the part. (continued on page 2) DIGITAL VIDEO I/O PORT WAVELET FILTERS, DECIMATOR, & INTERPOLATOR ADAPTIVE QUANTIZER RUN LENGTH CODER HUFFMAN CODER HOST I/O PORT & FIFO DRAM MANAGER ON-CHIP TRANSFORM BUFFER HOST ADV601LC ULTRALOW COST, VIDEO CODEC 256K 16-BIT DRAM (FIELD STORE) DIGITAL COMPONENT VIDEO I/O BIN WIDTH CONTROL SUB-BAND STATISTICS |
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Descrição semelhante - ADV601LC |
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