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Proceedings Paper

A CMOS low-power voltage control oscillator applied in the GPS RF receiver
Author(s): Zhi-min Cai; Xiao-fang Chen
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Paper Abstract

The VCO circuit is widely applied in various communication circuits. This paper describes a low power ring voltage control oscillator. The VCO consists of five stages, and each stage uses differential structure. The VCO is the single-ended output. The chip is fabricated in 0.18μm CMOS technology of TSMC in Taiwan. The chip core area is 0.25mm × 0.05mm. Measurements show that the power consumption is about 9.2mW at a supply voltage of 1.75V. The center frequency is 62MHz. The phase noise is -89.39dBc/Hz@1MHz. The VCO can be used in PLL of the GPS RF receiver.

Paper Details

Date Published: 10 July 2009
PDF: 6 pages
Proc. SPIE 7491, PIAGENG 2009: Remote Sensing and Geoscience for Agricultural Engineering, 74910P (10 July 2009); doi: 10.1117/12.837213
Show Author Affiliations
Zhi-min Cai, East China Institute of Technology (China)
Southeast Univ. (China)
Xiao-fang Chen, East China Institute of Technology (China)

Published in SPIE Proceedings Vol. 7491:
PIAGENG 2009: Remote Sensing and Geoscience for Agricultural Engineering
Honghua Tan; Qi Luo, Editor(s)

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