Download or read book On Formal Development of Analog/digital Interfaces in Mixed-signal Circuits written by and published by . This book was released on 2005 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The trend of integrating complete analog/digital systems on a single chip has resulted in new challenges in modeling and simulation. First of all, problems in analyzing these circuits arise due to the different modeling and simulation approaches used for analog and digital circuits, and differences in their accuracy requirements. Secondly, to cope with the complexities of large designs, systems level behavioral modeling and simulation are essential to the validation of a proposed architecture before a detailed design begins. This has been used in digital system design for many years with success. Designs are described and simulated at the behavioral level using standard hardware description languages. In the analog domain, circuits were mostly designed and verified at the electrical level. This kind of circuit simulation is time-consuming and not practical for large and complex circuits. For mixed-signal simulation, it is essential to provide an analog modeling and simulation environment similar to the digital domain, which would allow the designer to model components at behavioral level and then perform systemlevel analog simulation. Various hardware description languages, such as VHDL-AMS and Verilog-A have been developed as mixed-signal hardware description languages. In this thesis, we analyze various constructs in VHDL-AMS for modeling analog/digital interfaces and propose algorithms and new semantic constructs to reduce the time delay at the analog/digital interface in VHDL-AMS mixed-signal models.