In this paper, we discuss generation of digital switching noise and its propagation through substrate and interconnection parasitics. Effects of switching noise on analog voltage references and radio-frequency blocks are presented. Both simulated and measured results confirmed that crosstalk effects are strongly dependent on substrate and package type. Isolation strategies must be specifically designed for a mixed-signal chip, as they could even worse crosstalk if they are not properly designed accounting for values of parasitics.
Effects of digital switching noise on analog circuits performance / G. Boselli, G. Trucco, V. Liberali - In: European conference on circuit theory and design 2007 : Seville, august 26-30, 2007 : [proceedings] / [a cura di] O.G. Vinuesa. - Piscataway : Institute of electrical and electronics engineers, 2008. - ISBN 9781424413416. - pp. 160-163 (( Intervento presentato al 18. convegno European Conference on Circuit Theory and Design (ECCTD) tenutosi a Sevilla nel 2007 [10.1109/ECCTD.2007.4529561].
Effects of digital switching noise on analog circuits performance
G. BoselliPrimo
;G. TruccoSecondo
;V. LiberaliUltimo
2008
Abstract
In this paper, we discuss generation of digital switching noise and its propagation through substrate and interconnection parasitics. Effects of switching noise on analog voltage references and radio-frequency blocks are presented. Both simulated and measured results confirmed that crosstalk effects are strongly dependent on substrate and package type. Isolation strategies must be specifically designed for a mixed-signal chip, as they could even worse crosstalk if they are not properly designed accounting for values of parasitics.
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