Stability Analysis of High Order Sigma-Delta Modulators
نویسندگان
چکیده
In this paper we present a method for stability analysis of high order Sigma-Delta modulators. The method is based on a parallel decomposition of the modulator. Using this presentation the general N-th order modulator could be considered as made up of N first order modulators, which interact only through the quantizer function. The decomposition helps us to extract the stability conditions of the N-th order modulator. They are determined by the stability conditions of each of the first order modulators but shifted with respect to the origin of the quantizer function, because of the influence of all other first order modulators .
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