Compact electronically tunable quadrature oscillator using single voltage differencing gain amplifier (VDGA) and all grounded passive elements

Authors

ORAPIN CHANNUMSIN
WORAPONG TANGSRIRAT

DOI

10.3906/elk-1607-11

Abstract

This work deals with the design of a compact electronically tunable sinusoidal quadrature oscillator. The proposed quadrature oscillator is designed with a single voltage differencing gain amplifier (VDGA) and all the three grounded passive elements. Its oscillation condition and oscillation frequency can be tuned independently by means of the VDGA transconductance gains. The proposed oscillator also provides the explicit quadrature voltage outputs of almost equal magnitude and low active and passive sensitivity figures. The performance of the oscillator has been demonstrated by PSPICE simulations based on TSMC 0.35-$\mu $m CMOS technology.

Keywords

Voltage differencing gain amplifier (VDGA), quadrature oscillator, electronically tunable, transconductor, voltage-mode circuits

First Page

2686

Last Page

2695

Recommended Citation

CHANNUMSIN, ORAPIN and TANGSRIRAT, WORAPONG (2017) "Compact electronically tunable quadrature oscillator using single voltage differencing gain amplifier (VDGA) and all grounded passive elements," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 25: No. 4, Article 11. https://doi.org/10.3906/elk-1607-11
Available at: https://journals.tubitak.gov.tr/elektrik/vol25/iss4/11