An accurate and efficient estimation of switching noise in synchronous digital circuits

A new method is presented to compress switching information in large digital circuits. This is combined with an efficient approach of generating the noise signatures of cells in a digital library that results in an accurate and efficient approach for estimating the noise generated in digital circuits. This method provides a practical approach to generating the digital switching noise for simulating substrate coupling noise in mixed-signal ICs. Orders of magnitude reduction in the memory and simulation time are achieved using this approach without significant loss of accuracy.