Abstract:
A digital tuning scheme for automatic tuning of continuous-time high-Q filters is proposed. The tuning scheme uses the phase information for both frequency and Q factor t...Show MoreMetadata
Abstract:
A digital tuning scheme for automatic tuning of continuous-time high-Q filters is proposed. The tuning scheme uses the phase information for both frequency and Q factor tuning; therefore the relationship between the filter's passband magnitude and Q is immaterial. Due to the digital control of tuning loops, only one loop is active at a given time interval, which eliminates the need for slow Q tuning loop, improves stability and reduces tuning time. Experimental tests on the breadboard verify the operation where approximately 1% tuning error is accomplished.
Date of Conference: 26-29 May 2002
Date Added to IEEE Xplore: 07 August 2002
Print ISBN:0-7803-7448-7