NDLI: High precision in situ tuning of monolithic continuous time leapfrog filters

Content Provider	IEEE Xplore Digital Library
Author	Bliss, W.G. Sadkowski, R. Smith, S.L.
Copyright Year	1992
Description	Author affiliation: Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA (Bliss, W.G.; Sadkowski, R.; Smith, S.L.)
Abstract	The authors present an in situ method of tuning analog continuous time monolithic integrated circuit filters which achieves high precision when applied to leapfrog structures. The in situ method directly tunes selected subcircuits of the filter, so that neither accurate capacitor nor gain matching of circuit components is required. High precision is achieved by directly tuning highly isolated simple subsections of the filter. Two tuning methods are considered. First, lossless two-integrator loops are tuned by their oscillation frequencies. Secondly, single time constant circuits are tuned by observing magnitudes at cut-off frequencies. The tuning overhead of the in situ method is shown to be reasonable, much less than with the general programmable methods.<>
Starting Page	843
Ending Page	846
File Size	268828
Page Count	4
File Format	PDF
ISBN	0780305930
DOI	10.1109/ISCAS.1992.230090
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-05-10
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser tuning Circuit optimization Tuned circuits Master-slave Frequency locked loops Monolithic integrated circuits Matched filters Oscillators Analog memory CMOS technology
Content Type	Text
Resource Type	Article

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