A New DSP Digital Phase Locked Loop

Abstract

A new type of digital signal processing type digital phase locked loop is presented. It consists of a second order DPLL and first order DPLL both of which possess an additional automatic-frequency-control arrangement. It has a much wider acquisition range, smaller locking time and a wider stability boundary compared to those of the earlier versions. Exhaustive computer simulation results have been presented in support of the conclusions.

Indexing terms:

• Digital signal processing
• Digital phase locked loop
• Automatic frequency control