CAJ | 학술논문

提出了一种能够快速而精确地模拟时钟抖动的建模方法，可应用于连续时间Sigma-Delta调制器（continuous-time sig-ma-delta-modulator，CT-SDM）等系统的仿真与验证。相较于传统的基于离散时间的建模方法，所提出的一种基于连续时间的模型，可以灵活地应用于各种连续时间电路中，且可在保证精度的情况下，快速完成仿真。给出了关于时钟抖动的理论分析和该模型的数学理论推导，并通过搭建一个完整的连续时间Sigma-Delta调制器，验证了所提时钟抖动方法的正确性与可行性，仿真时间在数十秒内。
제출료일충능구쾌속이정학지모의시종두동적건모방법，가응용우련속시간Sigma-Delta조제기（continuous-time sig-ma-delta-modulator，CT-SDM）등계통적방진여험증。상교우전통적기우리산시간적건모방법，소제출적일충기우련속시간적모형，가이령활지응용우각충련속시간전로중，차가재보증정도적정황하，쾌속완성방진。급출료관우시종두동적이론분석화해모형적수학이론추도，병통과탑건일개완정적련속시간Sigma-Delta조제기，험증료소제시종두동방법적정학성여가행성，방진시간재수십초내。
A fast and accurate method is proposed to model clock j itter for the simulation of systems like continuous-time sigma-delta modulators.Compared to the traditional discrete-time based method,the proposed technique is continuous-time based, which is more convenient and faster in the related simulations for continuous-time systems.The theoretical and mathematical a-nalysis of clock j itter and proposed model are presented to verify its validity.A continuous-time modulator is built,and the simu-lation could be successfully finished in tens of seconds.