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Dynamic range Vs spectral clarity trade-off in all-digital frequency synthesis via single-bit sinewave quantization

Single-bit Nyquist-rate quantization of sinewaves with amplitude dithering using a sequence of independent and uniformly distributed random variables has been proposed for all-digital RF frequency synthesis generation. This work demonstrates how we can improve the Dynamic Range using non-uniformly distributed dithering by selectively allowing some of the harmonics to be present in the spectrum (vs. the spurs-free output of the uniform distribution.). MATLAB simulation examples illustrate the results of the proposed approach.