[4] MANEATIS J G, HOROWITZ M A. Precise delay generation using coupled oscillators [J]. IEEE J Sol Sta Circ, 1993, 28(12): 1273-1282.
[6] GAIDIOZ D, MATOS M D, CATHELIN A, et al. Ring VCO phase noise optimization by pseudo-differential architecture in 28 nm FD-SOI CMOS [C] // IEEE ISCAS. Seville, Spain. 2020: 1-4.
[11] HAJIMIRI A, LEE T H. A general theory of phase noise in electrical oscillators [J]. IEEE J Sol Sta Circ, 1998, 33(2): 179-194.
[12] HAJIMIRI A, LIMOTYRAKIS S, LEE T H. Jitter and phase noise in ring oscillators [J]. IEEE J Sol Sta Circ, 1999, 34(6): 790-804.
[13] DAI L, HARJANI R. Design of low-phase-noise CMOS ring oscillators [J]. IEEE Trans Circ Syst Ⅱ: Analog Digital Signal Process, 2002, 49(5): 328-338.