中国光学2011，Vol.4Issue(6)：611-616,6.
高速CCD成像电路抗串扰技术
Anti-crosstalk techniques for high-speed CCD imaging circuit
摘要
Abstract
In order to overcome the crosstalk of a high speed CCD imaging circuit,the reasons of the crosstalk are analyzed and the crosstalk models of CCD imaging circuit are established.The striplines instead of microstrips are used for the multi-channel CCD video signals and the guard lines are used for the striplines to isolate further.To reduce the crosstalk caused by the common impedance of a power supply,the isolated multi-channel power supplies are designed and the effective routing method for decoupling capacitors is used to lower parasitic inductances.The analog and digital parts are layout separately and a whole ground plane is used to reduce the ground bounce.Experiments for a CCD imaging circuit with much severe crosstalk problems are performed by these techniques,results show that the channel isolation is large than 60 dB.The crosstalk is reduced efficiently and the image quality is improved.关键词
高速CCD/成像电路/串扰/传输线Key words
high speed CCD/imaging circuit/crosstalk/transmission line分类
信息技术与安全科学引用本文复制引用
薛旭成,李洪法,郭永飞..高速CCD成像电路抗串扰技术[J].中国光学,2011,4(6):611-616,6.基金项目
国家自然科学基金资助项目（No.61036015) （）
