Automatic tuning of quality factors for VHF CMOS filters

Nauta, Bram and Seevinck, Evert (1990) Automatic tuning of quality factors for VHF CMOS filters. In: IEEE International Symposium on Circuits and Systems, ISCAS 1990, 1-3 May 1990, New Orleans, USA.

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Abstract:	A VHF transconductance-C filter technique with automatic tuning of the quality factors and the cutoff frequency, based on a voltage controlled oscillator (VCO), is presented. The Q-tuning circuit is very simple and contains no signal carrying nodes, resulting in a well-controlled Q up to very high frequencies (100 MHz). A breadboard realization of the Q-tuning circuit gave good results
Item Type:	Conference or Workshop Item
Copyright:	©1990 IEEE
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Integrated Circuit Design (ICD)
Link to this item:	http://purl.utwente.nl/publications/17057
Official URL:	http://dx.doi.org/10.1109/ISCAS.1990.112323
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