A Continuously Tunable Hybrid LC-VCO PLL With Mixed-Mode Dual-Path Control and Bi-level Delta-Sigma Modulated Coarse Tuning.
Yuanfeng SunJian QiaoXueyi YuWoogeun RheeByeong-Ha ParkZhihua WangPublished in: IEEE Trans. Circuits Syst. I Regul. Pap. (2011)