A phase-coherent transformer enabled 2:1 Frequency divider with 7dB phase noise reduction and speed×gain/power F.O.M. of 2×102 (pico-joule)"1

Daquan Huang*, William Hant, Wen Kuan Yeh, Jin Kou Ma, Charles Chien, Mau-Chung Chang

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper demonstrates a phase-coherent transformer (PCT) enabled 2:1 22GHz frequency divider in 0.18μm CMOS with 16 dB power gain and 7dB phase noise reduction. The PCT reverberates magnetic energy between the sensing and latching stages, resulting in extremely power efficient divider circuit topology. High division gain eliminates the use of consecutive buffer amplifiers. Consequently, the PCT divider enjoys low phase noise, low power consumption with a Speed×Gain/Power F.O.M. of 2×102 (pico-Joule)-1.

Original languageEnglish
Pages82-85
Number of pages4
DOIs
StatePublished - 1 Dec 2005
Event2005 Symposium on VLSI Circuits - Kyoto, Japan
Duration: 16 Jun 200518 Jun 2005

Conference

Conference2005 Symposium on VLSI Circuits
CountryJapan
CityKyoto
Period16/06/0518/06/05

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