Al-Junaid, Hessa and Kazmierski, Tom
An Analogue and Mixed-Signal Extension to SystemC.
The Institution of Electrical Engineers Proceedings Circuits, Devices & Systems.
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This paper presents a new methodology that enables extensions of SystemC to the analogue domain and allows modelling of mixed-signal and mixed energy-domain systems at arbitrary levels of abstraction. The new language constructs support analogue system variables, analogue components and user defined ordinary differential and algebraic equations. Support for digital-analogue interfaces has been provided for smooth integration of digital and analogue parts. Associated issues such as dealing with extremely small and zero time-step sizes have been addressed. A novel implementation of the lock-step mixed-signal synchronisation method to integrate the analogue kernel with the digital one has been proposed. Operation of the extended, mixed-signal simulation platform, named SystemC-A, is demonstrated using a suite of numerically difficult AMS examples including a practical, mixed-signal example of a PLL frequency multiplier with large-signal noise and jitter.
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