Abstract
Signal processing application circuits are often implemented following the “system on chip” design methodology. This means that several cooperating subsystems, that are implemented in the same silicon technology, are usually designed and modelled with different approaches and different “abstraction” and detail levels. In this framework, the distinction of what is “analog” and what is “digital” is somehow specious and even useless, and, as a consequence, an extended modelling and simulation environment, suitable for the large class of mixed analog/digital circuits, is desirable. This environment should extend to this class of circuits important simulation tools such as shooting methods for fast steady state computation, periodic small signal and periodic noise analyses, methods that are commonly used when dealing with analog circuits exhibiting periodic behaviors. A possible way to obtain this result is presented in this chapter by resorting to the concept of saltation matrix and extending the variational model to dynamical systems that are not Lipschitz continuous. Theory and applications are presented, also showing glimpses of possible implementation schemes for the proposed modelling and simulation framework.
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Notes
- 1.
Simulator pan is available at the URL: http://brambilla.ws.dei.polimi.it.
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Bizzarri, F., Brambilla, A., Gruosso, G., Gajani, G.S. (2013). Steady State Simulation of Mixed Analog/Digital Circuits. In: Tlelo-Cuautle, E. (eds) Integrated Circuits for Analog Signal Processing. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-1383-7_11
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