A 1-V 2.4-GHZ CMOS frequency synthesizer with - Current-match charge pump

Chung-Yu Wu*, Chih Yuan Hsieh, Wei Ming Chen

*Corresponding author for this work

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

A 1-V 2.4-GHz fully integrated frequency synthesizer for Bluetooth applications is proposed and designed in 0.25-μm CMOS technology. An improved current-match charge pump circuit without the start-up problem is used to reduce the spur level. Moreover, a bandswitching VCO is used to reduce the Kvco and hence the spur level can be further reduced. The prescaler is designed in 1-V supply voltage without the supply-voltage boosting. The circuit is verified by both HSPICE and ADS simulations.

Original languageEnglish
Pages433-436
Number of pages4
StatePublished - 1 Dec 2004
Event2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology - Tainan, Taiwan
Duration: 6 Dec 20049 Dec 2004

Conference

Conference2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology
CountryTaiwan
CityTainan
Period6/12/049/12/04

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    Wu, C-Y., Hsieh, C. Y., & Chen, W. M. (2004). A 1-V 2.4-GHZ CMOS frequency synthesizer with - Current-match charge pump. 433-436. Paper presented at 2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology, Tainan, Taiwan.