A Novel Parallel DTC Segmentation Scheme for Fractional-N Digital PLLs

  • Tuan Minh Vo The University of Danang, University of Science and Technology, Vietnam

Abstract

In this paper, we propose a new parallel segmentation scheme for the digital/time converter (DTC) which is employed in fractional-N digital phase-locked loops (PLLs) to cancel out the quantization error induced by the digital DS modulator. The proposed parallel scheme removes one redundant least-mean square (LMS) gain in compared with the conventional parallel one. Therefore, the design of the system becomes less complicated while guaranteeing a fast convergence speed of the LMS gains and a short DTC time range. The effectiveness of the proposed segmentation scheme is demonstrated via simulations of a digital PLL built at behavioral level and compared to the conventional segmentation schemes.

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References

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Published
2020-04-30
How to Cite
VO, Tuan Minh. A Novel Parallel DTC Segmentation Scheme for Fractional-N Digital PLLs. Journal of Science and Technology: Issue on Information and Communications Technology, [S.l.], v. 18, n. 4.2, p. 1-7, apr. 2020. ISSN 1859-1531. Available at: <http://ict.jst.udn.vn/index.php/jst/article/view/99>. Date accessed: 24 nov. 2020. doi: https://doi.org/10.31130/ict-ud.2020.99.