Quantitative noise analysis of jitter-induced nonuniformly sampled-and-held signals

Traditional jitter-noise analysis which mainly focuses on the clock jitter errors for impulse-sampled signals cannot accurately model the sampled-data systems that practically include nonuniform sample-and-hold effects. This paper presents a comprehensive and robust analysis of the imperfections of nonuniformly sampled-and-held signals due to clock jitter. Both the general signal to overall jitter noise ratio, and also the spurious free dynamic range subjected to narrow in-band noise tone are derived in closed-forms. Finally, a practical analysis of the timing-skew effects in designing a 21.4 MHz IF sampled-data filter for radio applications is addressed to illustrate the effectiveness of the derived formula.