Single Bit Filtering Circuit Implemented in a System for the Generation of Colored Noise

The generation of complex signal sources is important for test and validation of electronic systems. With reference to noise sources, commercial systems usually provide white noise sources while the scientific literature only recently proposed circuits that generate programmable colored noise. This paper proposes a filtering circuit and an algorithm to design the same that produces an arbitrary colored electrical noise. The proposed system improves the performances of the previously proposed circuits in terms of spectral characteristics of the output, in terms of logic resource occupation and power dissipation, while providing no penalty on the working frequency.