IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543

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Electronically Tunable Allpass Filter : Linear VCO Design
Rabindranath NandiKoushick MathurSandhya Pattanayak
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JOURNAL FREE ACCESS Advance online publication

Article ID: 13.20160059

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Abstract

A new electronically tunable allpass filter (ETAF) realization using the composite Current Feedback Amplifier (CFA) and Multiplication Mode Current Conveyor (MMCC) building blocks is proposed. First order non-minimum phase function with electronically variable output phase is derived. Extension of the filter to a linear quadrature-VCO design is then implemented. Simulation test responses of all these functions are satisfactorily verified.

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© 2016 by The Institute of Electronics, Information and Communication Engineers
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