Highly Influenced

# A 1-V 2.4-GHz CMOS frequency synthesizer with current-match charge pump

@article{Wu2004A12, title={A 1-V 2.4-GHz CMOS frequency synthesizer with current-match charge pump}, author={Chung-Yu Wu and Chih-Yuan Hsieh and Wei-Ming Chen}, journal={The 2004 IEEE Asia-Pacific Conference on Circuits and Systems, 2004. Proceedings.}, year={2004}, volume={1}, pages={433-436 vol.1} }

- Published 2004 in The 2004 IEEE Asia-Pacific Conference on Circuits…

A 1-V 2.4-GHz fully integrated frequency synthesizer for Bluetooth applications is proposed and designed in 0.25-mum 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

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