A 20.8-23.2GHz sub-sampling PLL with transformer-coupled VCO feedback loop achieving -47.05dBc reference spur and -245.9dB FOM in 40nm CMOS technology

Zhichao Zhang, Wenjie Zheng, Xinlin Xia, Yanjie Wang. A 20.8-23.2GHz sub-sampling PLL with transformer-coupled VCO feedback loop achieving -47.05dBc reference spur and -245.9dB FOM in 40nm CMOS technology. IEICE Electronic Express, 20(20):20230385, 2023. [doi]

Abstract

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