The dynamic range of timing measurements of the asynchronous Sigma-Delta modulator

The mapping of the signal amplitude into the timing sequence using the asynchronous Sigma-Delta modulation is investigated in the paper. Input signal reconstruction according to Lazar-Tóth theorem is assumed. The analysis presented in the paper shows that the utilization factor η is the main input parameter determining the speed of the modulator operation, and the range of output timing measurements. The fundamental tradeoffs of the asynchronous Σ-Δ modulator design for signal conversion are discussed.