器件名称:
LC74201E
功能描述:
Video CD Decoder
文件大小:
246.29KB 共21页
简 介:
Ordering number :EN *5684 CMOS LSI LC74201E Video CD Decoder Preliminary Overview The LC74201E is a CMOS LSI that reduces the signal processing functions required of a video CD decoder to a single chip. All that it takes to make a version 1 or version 2 video CD player is the addition of a CD digital signal processor, DRAM, an audio D/A converter, digital video encoder, and similar components. Package Dimensions unit: mm 3182-QFP-128E [LC74201E] Features Incorporation of virtually almost all the functionality required by a video CD player from the CD-ROM decoder through to the MPEG audio and video decoders in a single chip Fully automatic playback with automatic decoding within the LSI in response to simple external commands and the MPEG bit stream Special playback functions are activated by command inputs, and do not require signal processing by the host microcomputer Support for two external DRAM configurations: 4 M bits (256k × 16 bits) or 4 M bits (256k × 16 bits) + 1 M bit (64k × 16 bits) Support for a Track 1 DRAM user area (i.e., sector buffer) of up to 8 k bytes (4 M bits of external DRAM) or 22 k bytes (5 M bits of external DRAM) Automatic synchronization of audio and video Built-in high-speed decoder core that supports variablespeed video playback at up to quadruple speed. Audio support for normal and double-speed playback. Internal registers that offer configuration settings for connecting to most commercially available CD digital signal processors and ……
