Faculté des sciences

Behavioural Modelling of Sampled-Data Systems with HDL-A and ABSynth

Moser, Vincent ; Amann, Hans Peter ; Pellandini, Fausto

In: Hardware Description Languages and their Applications, 1997, p. 159-177

In this paper we make use of a mixed analogue-digital HDL to model sampled-data systems. Modelling solutions are presented to code some sampled-data behaviour using either analogue or digital constructs of the language.Two key operations – sampling and shifting – are presented first. Then, these facilities are used to code difference equations. This approach is validated on the example of... More

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    Summary
    In this paper we make use of a mixed analogue-digital HDL to model sampled-data systems. Modelling solutions are presented to code some sampled-data behaviour using either analogue or digital constructs of the language.
    Two key operations – sampling and shifting – are presented first. Then, these facilities are used to code difference equations. This approach is validated on the example of a sampled-data filter. Finally, a ‘real-life’ switched-capacitor A to D converter is modelled and simulated. The results are compared with a transistor-level description.