MASH-Based Divider Controllers for Mitigation of Wandering Spurs in a Fractional-N Frequency Synthesizer
Abstract
The divider controller can contribute significantly to the phase noise and spur pattern in the output of a nonlinear fractional- N frequency synthesizer. A type of time-varying spurs caused by a MASH DDSM divider controller, termed wandering spurs, has been observed in simulations and measurements of real synthesizers. In this work, we propose and analyze several MASH-based divider controller architectures that mitigate wandering spurs in a fractional- {N} frequency synthesizer.
Publication Title
IEEE Transactions on Circuits and Systems I: Regular Papers
Recommended Citation
Mai, D., & Kennedy, M. (2021). MASH-Based Divider Controllers for Mitigation of Wandering Spurs in a Fractional-N Frequency Synthesizer. IEEE Transactions on Circuits and Systems I: Regular Papers, 68 (1), 126-137. https://doi.org/10.1109/TCSI.2020.3035538
