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A comparison between two 1.8GHz CMOS VCOs tuned by different varactors

Publiceringsår: 1998
Språk: Engelska
Sidor: 380-383
Publikation/Tidskrift/Serie: Proceedings of the 24th European Solid-State Circuits Conference, 1998. ESSCIRC '98.
Dokumenttyp: Konferensbidrag


Two 1.8GHz CMOS VCOs, based on a diode-varicap and an MOS-varicap, respectively, have been designed in a 0.8µm digital CMOS process and tested. Although the tuning range is larger for the MOS-varicap VCO, the overall performance of the diode-varicap VCO is superior to that of the MOS-varicap VCO. The comparison might give a different result by adopting a CMOS process that allows for shorter minimum transistor gate lengths.



  • Technology and Engineering


22-24 Sept. 1998

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