Verifying jitter in an analog and mixed signal design using dynamic time warping

We present a variant of dynamic time warping (DTW) algorithm to verify jitter properties associated with an analog and mixed signal (AMS) design. First, the AMS design with stochastic jitter component is modeled using a system of difference equations for analog and digital parts and then evaluated in a MATLAB simulation environment. Second, MonteCarlo simulation is combined with DTW and hypothesis testing to determine the probability of acceptance/rejection of those simulation results. Our approach is illustrated on analyzing the jitter effect on the “lock-time” property of a phase locked loop (PLL) based frequency synthesizer.