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Automatic tuning of high-Q filters based on envelope detection

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2 Author(s)
A. I. Karsilayan ; Dept. of Electr. & Comput. Eng., Portland State Univ., OR, USA ; R. Schaumann

High-Q filter tuning based on envelope detection is discussed. The proposed tuning scheme is simple and can be used for high-frequency, high-Q filters. The circuit was designed using a 1.2 μm CMOS process, with a 3 V single supply voltage. As a demonstration, a second-order bandpass section is used in the simulations, but the method can also be applied to lowpass and highpass second-order sections

Published in:

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on  (Volume:2 )

Date of Conference:

Jul 1999