Analytical design of a 0.5V 5GHz CMOS LC-VCO

Fumiaki Yamashita; Toshimasa Matsuoka; Takao Kihara; Isao Takobe; Hae-Ju Park; Kenji Taniguchi

doi:10.1587/elex.6.1025

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Analytical design of a 0.5V 5GHz CMOS LC-VCO

Fumiaki Yamashita, Toshimasa Matsuoka, Takao Kihara, Isao Takobe, Hae-Ju Park, Kenji Taniguchi

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Keywords: CMOS, VCO, RF integrated circuits

JOURNAL FREE ACCESS

2009 Volume 6 Issue 14 Pages 1025-1031

DOI https://doi.org/10.1587/elex.6.1025

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Abstract

A low-voltage complementary cross-coupled differential LC-VCO was investigated using simple modeling. The bias-controllability of the VCO provides a simple design for low-voltage operation. An analytical design approach realized a 5GHz VCO under a 0.5V supply voltage using a 90-nm digital CMOS process.

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