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Sun, L.Z. and Kwasniewski, T.A. (2001) A 1.25-GHz 0.35 μm Monolithic CMOS PLL Based on a Multiphase Ring Oscillator. IEEE Journal of Solid-State Circuits, 36, 910-916.
https://doi.org/10.1109/4.924853

has been cited by the following article:

• TITLE: Dual-Delay-Path Ring Oscillator with Self-Biased Delay Cells for Clock Generation

  AUTHORS: Agord de Matos Pinto Jr, Raphael Ronald Noal Souza, Mateus Biancarde Castro, Eduardo Rodrigues de Lima, Leandro Tiago Manêra

  KEYWORDS: Phase Locked Loop (PLL), Voltage-Controlled Ring Oscillators (VCRO), Dual-Delay-Path DDP, Delay Cells

  JOURNAL NAME: Circuits and Systems, Vol.14 No.6, June 30, 2023

  ABSTRACT: This work summarizes the structure and operating features of a high-performance 3-stage dual-delay-path (DDP) voltage-controlled ring oscillator (VCRO) with self-biased delay cells for Phase-Locked Loop (PLL) structurebased clock generation and digital system driving. For a voltage supply VDD = 1.8 V, the resulting set of performance parameters include power consumption PDC = 4.68 mW and phase noise PN@1MHz = -107.8 dBc/Hz. From the trade-off involving PDC and PN, a system level high performance is obtained considering a reference figure-of-merit ( FoM = -224 dBc/Hz ). Implemented at schematic level by applying CMOS-based technology (UMC L180), the proposed VCRO was designed at Cadence environment and optimized at MunEDA WiCkeD tool.