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Published 2007 | Published
Book Section - Chapter Open

A Wideband CMOS Linear Digital Phase Rotator

Abstract

This paper presents a 10-bit wideband Cartesian phase rotator with a novel linear digital VGA implemented in a 0.13um CMOS process. The VGA topology is robust to device modeling uncertainties and PVT variations. The system provides 7.8dB voltage gain with -3dB bandwidth of 7.6GHz. A maximum phase error of 2º has been achieved for a phase shifting range of 360º with 32 phase steps of 11.25º. The capability to compensate for mismatched quadrature inputs is also demonstrated.

Additional Information

© 2007 IEEE. Issue Date: 16-19 Sept. 2007. Date of Current Version: 21 January 2008. The authors would like to thank H. Mani for his assistance in fabricating the testing module, and A. Natarajan, Y. Wang, F. Bohn, and S. Jeon of the California Institute of Technology, and A. Komijani of Rambus for their technical discussions. The authors would also like to acknowledge Office of Naval Research for the support.

Attached Files

Published - Wang2007p8845Proceedings_Of_The_Ieee_2007_Custom_Integrated_Circuits_Conference.pdf

Files

Wang2007p8845Proceedings_Of_The_Ieee_2007_Custom_Integrated_Circuits_Conference.pdf

Additional details

Created:
August 19, 2023
Modified:
January 13, 2024