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W9920I

Features: · Conforms to ISO/IEC 11172-2 MPEG-1 video standard· Fully supports Karaoke CD, Video CD 1.1, Video CD 2.0 and CD-I movie titles· Decompresses SIF resolution motion pictures, including 352x240 at 30Hz, 352x288 at 25Hz and 384x240 at 24Hz· Decompresses still pictures, including normal res...

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SeekIC No. : 004545384 Detail

W9920I: Features: · Conforms to ISO/IEC 11172-2 MPEG-1 video standard· Fully supports Karaoke CD, Video CD 1.1, Video CD 2.0 and CD-I movie titles· Decompresses SIF resolution motion pictures, including 352...

W9920I Data Sheet

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Part Number:
W9920I
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

· Conforms to ISO/IEC 11172-2 MPEG-1 video standard
· Fully supports Karaoke CD, Video CD 1.1, Video CD 2.0 and CD-I movie titles
· Decompresses SIF resolution motion pictures, including
   352x240 at 30Hz, 352x288 at 25Hz and 384x240 at 24Hz
· Decompresses still pictures, including normal resolution of
  352x240 or 352x288 and high resolution of 704x480 or 704x576
· Performs horizontal/vertical interpolation for reducing video artifact
· Provides clipping function on decompressed pictures
· Provides either RGB or YCbCr video output
· Performs frame rate conversion for different display rates regardless of coded frame rate
· Provides on-chip interlace, non-interlace TV scan timing and VGA-like progressive scan timing generation
· Supports TV and VGA displays without need of additional line buffers
· Supports direct frame buffer access, i.e. write or capture pictures through host processor
· Supports macro play functions
· Supports on-chip STC for audio/video synchronization
· Supports 16 bits ISA bus interface
· Supports I/O address setup procedure and on-the-fly I/O address changeable
· Supports board-level external interrupt sources, general
  control output pins and address select output pins
· Requires only one 4Mbits DRAM, even for high resolution still pictures
· Supports up to 45MHz operating frequency
· Built-in power down mode
· Fabricated using Winbond advanced 0.6 um triplelayer metal CMOS technology
· Packaged in standard 160-pin plastic QFP


Description

The W9920IF MPEG-1 VIDEO DECODER is a highperformance single-chip video decompression processor. It implements the international standard proposed by ISO MPEG (Moving Picture Experts Group) Phase-1 for realtime moving-pictures decompression. The processor is designed for applications that manipulate high-quality digital video with compact storage media such as CD-ROM. The processor W9920IF not only decompresses MPEG-1 video but also performs some post processing on the decompressed video data. For video output, the processor can deliver the decompressed video sequences either in master-driven mode or slave-driven mode. In master mode, the processor directly W9920IF displays the decompressed pictures with on-chip generated TV or VGA-like scan timing on a TV screen or a VGA monitor respectively.While in slavemode, the delivery of the decompressed pictures is controlled by an external video clock and synchronization signals.




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