The effect of all-digital phase-locked loop (ADPLL) digital filter parameters on the jitter is investigated in time domain, and a systematic design procedure for ADPLL is presented. Abstract: This paper proposes a new all digital phase-locked loop (ADPLL) which operates from 80MHz to 800MHz with the locking cycle of less than 40 clock cycles.
The pro-posed method not only estimates the output jitter of an ADPLL, but also finds the optimal filter pa-rameter minimizing the overall ADPLL timing jitter. It employs a time measurable digital controlled oscillator (TMDCO), which helps the reduction of locking cycle.
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Specialized scientific periodical: Scientific Proceedings of the National University of Ostroh Academy. The periodical is included in The List of Specialized Scientific Editions Empowered to Publish the Results of Doctoral or Candidate’s of Science Dissertations.