半导体技术
半導體技術
반도체기술
SEMICONDUCTOR TECHNOLOGY
2010年
2期
194-197
,共4页
视频转换%数字电视编码%减采样与过采样
視頻轉換%數字電視編碼%減採樣與過採樣
시빈전환%수자전시편마%감채양여과채양
video conversion%digital TV encoding%down-sampling and up-sampling
介绍了VGA到TV视频转换的系统原理与总体架构,阐述了视频转换的色彩空间转换、UV减采样、去闪烁与缩放、副载波调制及数字电视编码等原理,应用减采样与过采样算法实现视频采样率转换.基于此结构,采用0.5μm CMOS工艺实现了一款VGA到TV数字视频转换芯片,芯片集成度15万门,芯片面积为6.67 μm×6.35 μm,系统时钟为27 MHz.实测结果表明,芯片实现了VGA到NTSC/PAL制电视的转换,适用于多分辨率、多制式视频转换系统.
介紹瞭VGA到TV視頻轉換的繫統原理與總體架構,闡述瞭視頻轉換的色綵空間轉換、UV減採樣、去閃爍與縮放、副載波調製及數字電視編碼等原理,應用減採樣與過採樣算法實現視頻採樣率轉換.基于此結構,採用0.5μm CMOS工藝實現瞭一款VGA到TV數字視頻轉換芯片,芯片集成度15萬門,芯片麵積為6.67 μm×6.35 μm,繫統時鐘為27 MHz.實測結果錶明,芯片實現瞭VGA到NTSC/PAL製電視的轉換,適用于多分辨率、多製式視頻轉換繫統.
개소료VGA도TV시빈전환적계통원리여총체가구,천술료시빈전환적색채공간전환、UV감채양、거섬삭여축방、부재파조제급수자전시편마등원리,응용감채양여과채양산법실현시빈채양솔전환.기우차결구,채용0.5μm CMOS공예실현료일관VGA도TV수자시빈전환심편,심편집성도15만문,심편면적위6.67 μm×6.35 μm,계통시종위27 MHz.실측결과표명,심편실현료VGA도NTSC/PAL제전시적전환,괄용우다분변솔、다제식시빈전환계통.
The system theory and construction of the video conversion for VGA to TV were introduced. The construction of VGA conversion and digital TV encoding are emphatically interpreted such as color space conversion, UV down-sampling, anti-flicker and scaler, subcarrier modulation and digital TV encoding. Based on the structure, a chip of digital video conversion was fabricated in 0.5 μm process. Its area is 6.67 μm × 6.35 μm, the chip can realize VGA to NTSC/PAL TV conversion, and is suitable for multiresolution, multi-standard video conversion system.
