首页> 外文会议>Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on >Clock jitter insensitive continuous-time /spl Sigma//spl Delta/ modulators
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Clock jitter insensitive continuous-time /spl Sigma//spl Delta/ modulators

机译:时钟抖动不敏感的连续时间/ spl Sigma // spl Delta /调制器

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Timing errors due to clock jitter are one of the most severe problems, when building continuous time (CT) /spl Sigma//spl Delta/ modulators. This is due to a strong dependence of the modulator resolution on the timing errors of the clock. The methodology presented in this paper allows the implementation of jitter insensitive CT EA modulators. Therefore a modified switched capacitor feedback structure has been derived to reduce the sensitivity to clock jitter, while keeping the advantages of the CT design concerning speed and power. The problem of jitter noise is investigated analytically, and the new approach is described. An easy method to implement CT modulators with the shown jitter insensitivity is presented. Finally the constraints of the approach are shown.
机译:当构建连续时间(CT)/ spl Sigma // spl Delta /调制器时,由于时钟抖动引起的时序错误是最严重的问题之一。这是由于调制器分辨率强烈依赖于时钟的时序误差。本文介绍的方法可以实现对抖动不敏感的CT EA调制器。因此,在保持CT设计在速度和功耗方面的优势的同时,已经推出了一种改进的开关电容器反馈结构,以降低对时钟抖动的敏感性。对抖动噪声问题进行了分析研究,并描述了这种新方法。提出了一种实现具有所示抖动不敏感性的CT调制器的简便方法。最后显示了该方法的局限性。

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