ARCHGEN - AUTOMATED SYNTHESIS OF ANALOG SYSTEMS

High-level design of analog systems is an open area that needs to be a ddressed with the emerging trend of integrating mixed analog-digital s ystems. Design methods compatible across the analog-digital boundaries would expedite the design process, and in this paper we address analo g high-level design issues. An approach for systems-level synthesis of a class of analog systems is presented. A behavioral level for the an alog domain is characterized in terms of state equations and transfer functions in the continuous and discrete domains. State-space represen tations are generated from transfer function specifications that exhib it system level characteristics such as controllability and observabil ity as well as decoupled and parallel architectures. These state-space representations are synthesized into behavioral-level, technology-ind ependent architectures composed of analog functional components. An in termediate architecture in a circuit implementation technology is synt hesized from the behavioral architecture. The various algorithmic proc edures for synthesis are implemented in the program ARCHGEN. Behaviora l simulation is used for architecture verification and design space ex ploration.