Ewout Martens

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Circuit-level simulation of /spl Delta//spl Sigma/ modulators is a time-consuming task, taking one or more days for meaningful results. While there are a great variety of techniques and tools that speed up the simulations for discrete-time /spl Delta//spl Sigma/ modulators, there is no rigorous methodology implemented in a tool to efficiently simulate and(More)
A new approach for automated synthesis of analog and mixed-signal systems is presented. The heterogeneous genetic optimization strategy starts from a functional description and evolves a simple design solution in a strict top-down design process to a complex one that fulfills multiple objectives. Transformations of both architecture and parameters are(More)
Feel lonely? What about reading books? Book is one of the greatest friends to accompany while in your lonely time. When you have no friends and activities somewhere and sometimes, reading book can be a great choice. This is not only for spending the time, it will increase the knowledge. Of course the b=benefits to take will relate to what kind of book that(More)
Increasing complexity of modern mixed-signal chips requires systematic analysis and design methodologies. High-level formal models are a key ingredient for the high-level synthesis of systems-on-chip. This paper proposes a formal description of continuous-time ∆Σ modulators. The presented model makes it straightforward to analyze the converter at different(More)
In a generic behavioral model of an analog or mixed-signal electronic system, the internal and external signals and their interactions are formulated by more general descriptions than in commonly used behavioral models. This allows a more flexible design methodology. Whereas a behavioral model models an architecture of a system at a specific abstraction(More)
Circuit–level simulation of 16 modulators is a time– consuming task (taking one or more days for meaningful results). While there are a great variety of techniques and tools that speed up the simulations for discrete–time (DT)16 modulators, there is no rigorous methodology implemented in a tool to efficiently simulate and design the continuous– time (CT)(More)