Accurate stability prediction of 1-bit higher-order Δ-Σ modulators for multiple-sinusoidal inputs
Article
Lota, J. 2012. Accurate stability prediction of 1-bit higher-order Δ-Σ modulators for multiple-sinusoidal inputs. Journal of the IET Circuits, Devices & Systems. 6 (2), pp. 71-78.
Authors | Lota, J. |
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Abstract | The present approaches on predicting stability of Delta-Sigma (Δ-Σ) modulators are mostly confined to DC inputs. This poses limitations as practical applications of Δ-Σ modulators involve a wide range of signals other than DC such as multiple sinusoidal inputs for speech modeling. In this paper, a quasi-linear model for Δ-Σ modulators with nonlinear feedback control analysis is presented that accurately predicts stability of single-loop 1-bit higher-order Δ-Σ modulators for multiple sinusoids. Theoretical values are shown to match closely with simulation results. The results of this paper would enable optimization of the design of higher-order single-loop Δ-Σ modulators with increased dynamic ranges for various applications that require multiple-sinusoidal inputs or any general input composed of a finite number of sinusoidal components. |
Keywords | delta-sigma; stability analysis; non-linear systems; multiple inputs |
Journal | Journal of the IET Circuits, Devices & Systems |
Journal citation | 6 (2), pp. 71-78 |
Year | 2012 |
Accepted author manuscript | License CC BY-ND |
Web address (URL) | http://hdl.handle.net/10552/1556 |
Publication dates | |
Mar 2012 | |
Publication process dates | |
Deposited | 13 Apr 2012 |
Additional information | Citation: |
https://repository.uel.ac.uk/item/85z74
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