A 2.4-GHz 16-Phase Sub-Sampling Fractional-N PLL With Robust Soft Loop Switching.

Dongyi Liao,Fa Foster Dai,Bram Nauta,Eric A. M. Klumperink

IEEE Journal of Solid-State Circuits（2018）

引用 45|浏览15

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摘要

A 16-modulo fractional-N sub-sampling phase-locked loop (SSPLL) with a quadrature voltage-controlled oscillator (VCO) interpolating 16 output phases is presented in this paper. Automatic soft switching between the sub-sampling phase control loop and the frequency control loop is proposed to improve loop robustness against perturbations and interferences, achieving more stable loop dynamics for a l...

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关键词

Frequency locked loops,Switches,Voltage-controlled oscillators,Phase frequency detector,Phase locked loops,Phase noise,Clocks

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