In this paper the effect of colored clock jitter on audio continuous-time ΣΔ modulators is studied. The results demonstrate the importance of using the correct model for the jitter on the clock signal, especially when it is generated by a phase-locked loop, as it is the case in most audio applications. The paper demonstrates that the popular clock signal model with white jitter noise spectrum leads to worse ΣΔ modulator performance than a more realistic model with colored jitter noise spectrum. Indeed, such a model allows the designer to obtain more reliable simulation results, in order to choose the most suitable architecture and size correctly the circuit components to achieve the desired design target, leading to power consumption and area optimization.

De Berti, C., Malcovati, P., Crespi, L., Baschirotto, A. (2015). Colored clock jitter model in audio continuous-time ΣΔ modulators. In Conference Proceedings - 13th IEEE International NEW Circuits and Systems Conference, NEWCAS 2015 (pp.1-4). Institute of Electrical and Electronics Engineers Inc. [10.1109/NEWCAS.2015.7182021].

Colored clock jitter model in audio continuous-time ΣΔ modulators

BASCHIROTTO, ANDREA
Ultimo
2015

Abstract

In this paper the effect of colored clock jitter on audio continuous-time ΣΔ modulators is studied. The results demonstrate the importance of using the correct model for the jitter on the clock signal, especially when it is generated by a phase-locked loop, as it is the case in most audio applications. The paper demonstrates that the popular clock signal model with white jitter noise spectrum leads to worse ΣΔ modulator performance than a more realistic model with colored jitter noise spectrum. Indeed, such a model allows the designer to obtain more reliable simulation results, in order to choose the most suitable architecture and size correctly the circuit components to achieve the desired design target, leading to power consumption and area optimization.
paper
Electrical and Electronic Engineering
English
13th IEEE International NEW Circuits and Systems Conference, NEWCAS 2015
2015
Conference Proceedings - 13th IEEE International NEW Circuits and Systems Conference, NEWCAS 2015
9781479988938
2015
1
4
7182021
none
De Berti, C., Malcovati, P., Crespi, L., Baschirotto, A. (2015). Colored clock jitter model in audio continuous-time ΣΔ modulators. In Conference Proceedings - 13th IEEE International NEW Circuits and Systems Conference, NEWCAS 2015 (pp.1-4). Institute of Electrical and Electronics Engineers Inc. [10.1109/NEWCAS.2015.7182021].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/153335
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