Fully Analog Clock Signal Generator for SPICE based simulators

Abstract

Clock signals are vital in synchronous circuits because they synchronize various data signals coming from different parts of an integrated circuit, ensuring the correct functioning of the entire circuit. As simulation has become the main verification concept in circuit design, accurate clock signal generator models are mandatory in order to build high quality circuit models. This paper proposes a fully analog clock signal generator modeling method, which can be used in any SPICE based simulator. All synchronous circuit models currently implemented use a digital primitive based clock signal, which only works in the simulator it was designed for. The main advantage of our proposed method is the compatibility with all SPICE based simulators like PSpice Allegro, SIMetrix, TINA, LTSpice, which greatly widens the user's simulation alternatives.