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A wide-tunable translinear second-order oscillator

Serdijn, WA; Mulder, J; Van Der Woerd, AC; Van Roermund, AHM; (1998) A wide-tunable translinear second-order oscillator. IEEE Journal of Solid-State Circuits , 33 (2) pp. 195-201. 10.1109/4.658620.

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Abstract

This paper describes the design and measurement of a translinear second-order oscillator. The circuit is a direct implementation of a nonlinear second-order differential equation and follows from a recently developed synthesis method for dynamic translinear circuits. It comprises only two capacitors and a handful of bipolar transistors and can be instantaneously controlled over a very wide frequency range by only one control current, which indicates its suitability for spread-spectrum communications. Its total harmonic distortion can be made small by the design, which enables fully integrated transmitters. A semicustom test chip, fabricated in a standard 2-μm, 7-GHz, bipolar IC process, operates from a single supply voltage, which can be as low as 2 V and oscillates over six decades of frequency with -31 dB total harmonic distortion.

Type: Article
Title: A wide-tunable translinear second-order oscillator
DOI: 10.1109/4.658620
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1528379
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