Iterative solution of nonlinear equations in several variables
Iterative solution of nonlinear equations in several variables
Computer Methods for Circuit Analysis and Design
Computer Methods for Circuit Analysis and Design
Computer-Aided Analysis of Electronic Circuits: Algorithms and Computational Techniques
Computer-Aided Analysis of Electronic Circuits: Algorithms and Computational Techniques
The second generation motis mixed-mode simulator
DAC '84 Proceedings of the 21st Design Automation Conference
Equation-based behavioral model generation for nonlinear analog circuits
DAC '96 Proceedings of the 33rd annual Design Automation Conference
Event-driven behavioural simulation of analogue transfer functions
EURO-DAC '90 Proceedings of the conference on European design automation
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Behavioral modeling of analog circuitry is an important step in making the design of large, mixed analog-digital chips manageable. Towards that end, this paper proposes a methodology for describing arbitrary analog blocks at the behavioral level. In order to verify the functionality of such behavioral models before incorporation into a simulation environment, a verification tool, ACME, has been developed. The designer's knowledge of the subcircuit is relied upon to generate good models. However, in some special cases, such as analog filters described as Laplace transforms or in the z-domain, the generation of time-domain models conforming to the above methodology has been automated. The tools modgens and modgenz convert transfer functions H (s) and H (z), respectively, into state-space representations in the time-domain. The behavioral models for the analog blocks are suitable for simulation along with digital subcircuits to accomplish mixed analog-digital simulation.