Patent Number: 6,167,359

Title: Method and apparatus for characterizing phase noise and timing jitter in oscillators

Abstract: A nonlinear analysis for characterizing phase noise and timing jitter in oscillators is disclosed. The method and apparatus utilize a nonlinear differential equation to characterize the phase error of a given oscillator. A precise stochastic characterization of timing jitter and spectral dispersion is also disclosed based on the nonlinear differential equation. Representative time and frequency domain computational techniques are disclosed for characterizing the phase noise and timing jitter of circuits. In addition, a single scalar constant, c, is utilized to describe jitter and spectral spreading in a noisy oscillator.

Inventors: Demir; Alper (Jersey City, NJ), Mehrotra; Amit (El Cerrito, CA), Roychowdhury; Jaijeet S. (Murray Hill, NJ)

Assignee: Lucent Technologies Inc.

International Classification: G01R 29/00 (20060101); G01R 29/26 (20060101); G01R 31/28 (20060101); H04B 015/00 (); H04B 017/00 ()

Expiration Date: 12/26/2017