Electronically Tunable Mixed-mode Sinusoidal Oscillator using Simple Transconductors

Last modified: March 22, 2023
Estimated reading time: 1 min
Research Article: Electronically Tunable Mixed-mode Sinusoidal Oscillator using Simple Transconductors
ผู้เขียน|Author: Anuree Lorsawatsiri, Vinai Silaruam, Wipavan Narksarp and Yongyuth Naras
Email: wipavan.nar@siam.edu
Department|Faculty: Department of Electrical, Faculty of Engineering,Siam University, Bangkok 10160
Published|แหล่งเผยแพร่: The 2023 International Electrical Engineering Congress (iEECON2023) March 8-10, 2023, Deevana Krabi Resort, Krabi, Thailand

Citation

Lorsawatsiri A., Silaruam V., Narksarp W., & Naras Y. (2023). Electronically tunable mixed-mode sinusoidal oscillator using simple transconductors. In The 2023 International Electrical Engineering Congress (iEECON2023). Mahasarakham: Mahasarakham University.


ABSTRACT

This paper offers a tunable mixed-mode oscillator. Only two grounded capacitors and three transconductors are used in the oscillator. It has the advantageous characteristics of a simple structure, mixed voltage- and current-mode operation, and suitable IC implementation because of no external passive resistor and the use of a grounded capacitor. Furthermore, the oscillation frequency and condition can be separately changed by varying the bias current of the transconductors. The investigation of the effect of parasitic elements of transconductors on the proposed oscillator is included. The simulation results of the suggested circuit using PSPICE with 0.18 µm CMOS TSMC technology and ±0.75 V power supply confirm the analytical theory.

Keywords:  oscillator, transconductor, grounded capacitor, no external passive resistor, mixed-mode. 


Electronically Tunable Mixed-mode Sinusoidal Oscillator using Simple Transconductors

คณะวิศวกรรมศาสตร์ มหาวิทยาลัยสยาม | Faculty of Engineering, Siam University, Bangkok, Thailand

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