This paper presents a method for analyzing the Bit Error Rate of recovered data for PLL-based data recovery systems (DRS) as the PLL comes into lock. This method is based on the analyses of the transient response of the Phase-Locked Loop (PLL) and the associated jitter models. It provides a means to predict the acquisition time needed for a data recovery system to reach a given BER. Practical criteria are established to help determine the “lock” status of a PLL.
Yonghui Tang, Randall L. Geiger