重影消除自适应均衡芯片设计  

Design of Novel Adaptive Equalizer IC for Ghost Canceler

作　　者：沈芳[1] 黄姣英[1] 何怡刚[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《微电子学与计算机》2007年第4期122-124,128,共4页Microelectronics & Computer

基　　金：国家自然科学基金(50277010);湖南省杰出青年基金(03JJY1010);湖南省科技计划项目(03GKY3115;04FJ2003);教育部新世纪优秀人才支持计划;湖南大学撷英计划项目

摘　　要：提出了一种重影消除自适应均衡芯片设计,该芯片采用自适应算法、内置576抽头数字滤波器,可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,80-pin的QFP封装;在典型工作频率下最大功耗为1.3W。A novel adaptive equalizer IC ,which reduces the effect of multi-path signal ghosts, is described in this paper. An adaptive algorithm was used to dramatically improve the received image quality. The device, whose internal 576-tap digital filter eliminates artifacts, performs all the functions required for ghost cancellation, eliminating the need for external DSP controllers, memory, sync detection, D/A converters, A/D converters and user programming. The device was encapsulated in 80-pin QFP and the active area is 280mm2 in a 0.35μm CMOS process, operating with 3.3V power supplies and dissipating 1.3W at a rate of 14.318 MHz （4Fsc）.

关 键 词：自适应均衡 数字滤波器 CMOS 锁相环 数字振荡器 

分 类 号：TN4[电子电信—微电子学与固体电子学]