1992_EJRNL_PP_Prof__E__Panayirci,_PhD_1.pdf
Terbatas Irwan Sofiyan
» ITB
Terbatas Irwan Sofiyan
» ITB
An analytical approach is presented for
the jitter performance of a timing recovery circuit
consisting of a hard-limiter, an exclusive-or gate,
followed by a second-order phase-locked loop.
Exact expressions for the autocorrelation function
and the power spectral density of the zerocrossing
jitter in the data signal are derived, and
then the phase jitter variance of the timing wave,
generated at the output of the timing circuit, is
obtained analytically as a function of various
system parameters. Finally, numerical results and
a comparative performance analysis show that
considerable improvement can be achieved in
jitter performance in addition to having the
advantage of low cost and simple hardware implementation.