新型的视频自适应均衡芯片设计

Design of a Novel Video-Rate Adaptive Equalizer IC

设计了一款新型的视频自适应均衡芯片.采用自适应算法与内置576抽头数字滤波器完成重影消除的所有功能.芯片高度集成,内嵌DSP控制器、存储器、同步检测器、D/A、A/D及用户编程.该芯片采用3·3V电源电压、0·35μmCMOS工艺生产制造;在典型工作频率下最大功耗为1·3W,80-pin的QFP封装,封装前裸芯片(包括PAD在内)的尺寸为14mm×20mm.

A novel video-rate adaptive equalizer IC that reduces the effect of multi-path signal echoes （ghosts） ,is described. An adaptive algorithm is used to dramatically improve the quality of the received image. The device,whose internal 576-tap digital filter eliminates artifacts that result from multi-path echoes, performs all the functions required for ghost cancellation and comprises DSP controllers, memory, syn detection,D/A converters, A/D converters, and user programming. The device is encapsulated in an 80-pin QFP,and the active area （PADs including） is 14mm × 20mm in a 0. 35μm CMOS process. It operates with a 3.3V power supply and dissipates 1.3W at the rate of 14. 318MHz.