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ADV601JS 数据表(PDF) 1 Page - Analog Devices |
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ADV601JS 数据表(HTML) 1 Page - Analog Devices |
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1 / 52 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 ADV601 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997 Low Cost Multiformat Video Codec FUNCTIONAL BLOCK DIAGRAM DIGITAL VIDEO I/O PORT WAVELET FILTERS, DECIMATOR, & INTERPOLATOR ADAPTIVE QUANTIZER RUN LENGTH CODER HUFFMAN CODER HOST I/O PORT & FIFO SERIAL PORT DRAM MANAGER ON-CHIP TRANSFORM BUFFER HOST ADV601 LOW COST, MULTIFORMAT VIDEO CODEC 256K X 16-BIT DRAM (FIELD STORE) DSP (OPTIONAL) DIGITAL COMPONENT VIDEO I/O FEATURES Precise Compressed Bit Rate Control Field Independent Compression Flexible Video Interface Supports All Common Formats, Including CCIR-656 General Purpose 8-, 16- or 32-Bit Host Interface With 512 Deep 32-Bit FIFO PERFORMANCE Real-Time Compression Or Decompression of CCIR-601 And Square Pixel Video: 720 288 @ 50 Fields/Sec — PAL 768 288 @ 50 Fields/Sec — PAL 720 243 @ 60 Fields/Sec — NTSC 640 243 @ 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 Nonlinear Video Editing Video Capture Systems Remote CCTV Surveillance Digital Camcorders Broadcast Quality Video Distribution Systems Video Insertion Equipment Image And Video Archival Systems Digital Video Tape High Quality Video Teleconferencing GENERAL DESCRIPTION The ADV601 is a very low cost, single chip, dedicated function, all digital CMOS VLSI device capable of supporting visually loss-less to 350:1 real-time compression and decompression 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 ADV601 is a video encoder/decoder optimized for real-time compression and decompression of interlaced digital video. All features of the ADV601 are designed to yield high performance at a breakthrough systems-level cost. Additionally, the unique sub-band coding architecture of the ADV601 offers you many application-specific advantages. A review of the General Theory of Operation and Applying the ADV601 sections will help you get the most use out of the ADV601 in any given application. The ADV601 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 ADV601 accepts a compressed bit stream through the Host Interface and outputs component digital video through the Video Interface. The host accesses all of the ADV601’s control and status registers using the Host Interface. An optional Digital Signal Processor (DSP) may be used for calculating quantiza- tion Bin Widths (BW) (instead of the host); the ADV601 sends current field statistics and receives Bin Width results as a packet I/O over the DSP serial port interface. A generic fixed-point DSP (for instance the ADSP-2105) is more than adequate for these calculations. Figure 1 summarizes the basic function of the part. (continued on page 2) |
类似零件编号 - ADV601JS |
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类似说明 - ADV601JS |
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