σ - δ调制器性能的解析限制

IEEE International Symposium on Circuits and Systems proceedings. IEEE International Symposium on Circuits and Systems Pub Date : 2000-05-28 DOI:10.1109/ISCAS.2000.856168

J. Harrison, N. Weste

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引用次数: 9

摘要

推导了σ - δ调制器噪声传递函数的解析限制。以分贝为单位的噪声传递函数对频率的积分至少为零。在调制器反馈环路中发现一个样本的过量延迟对低通调制器是有害的。

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Analytic limitations on sigma-delta modulator performance

Analytic limitations on the noise transfer function of sigma-delta modulators are derived. The noise transfer function magnitude in decibels integrated against frequency sums to at least zero. An excess delay of one sample in the modulator feedback loop is found to be detrimental for lowpass modulators.

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来源期刊

IEEE International Symposium on Circuits and Systems proceedings. IEEE International Symposium on Circuits and Systems

CiteScore

2.00

自引率

0.00%

发文量