Proceedings of the 1997 International Symposium on Low Power Electronics and Design - ISLPED '97 1997
DOI: 10.1145/263272.263302
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New stability criteria for the design of low-pass sigma-delta modulators

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Cited by 16 publications
(2 citation statements)
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“…The disadvantage of single-loop single-bit Σ∆ modulators with orders N > 2 is the tendency to instability. Therefore, a proper selection of the scaling coefficients has to be made [81,[238][239][240]. The optimal scaling coefficients are a trade-off between stability, maximum stable input amplitude and peak signal-to-noise ratio, see Sect.…”
Section: Single-loop Architecturesmentioning
confidence: 99%
“…The disadvantage of single-loop single-bit Σ∆ modulators with orders N > 2 is the tendency to instability. Therefore, a proper selection of the scaling coefficients has to be made [81,[238][239][240]. The optimal scaling coefficients are a trade-off between stability, maximum stable input amplitude and peak signal-to-noise ratio, see Sect.…”
Section: Single-loop Architecturesmentioning
confidence: 99%
“…However, when using this model, the describing function method fails to predict small-signal stability issues such as idle patterns and instability under zero-input and zeroinitial state conditions. For example, a second-order low-pass modulator exhibits an idle pattern with a frequency of whereas the describing function method predicts a frequency of [14]. Therefore, the commonly used "linear signal gain" model for a one-bit quantizer is extended with a phase shift.…”
Section: Stability Analysismentioning
confidence: 99%