Title :
New quadrature sinusoidal oscillator with amplitude controllability
Author :
Chandee, Sasithon ; Jaikla, Winai ; Suwanjan, Peerawut ; Pookrongtong, Nattapon ; Kwawsibsam, Adisorn
Author_Institution :
Fac. of Ind. Educ., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
The quadrature sinusoidal oscillator employing two voltage differencing tranconductance amplifiers (VDTAs) has been proposed. The condition of oscillation (CO) and frequency of oscillation (FO) can be independently controlled by adjusting the bias current of two VDTAs. The oscillator can provide two output voltages as quadrature waveform and one output current with magnitude controllability. It consists of two VDTAs and two grounded capacitors which is then suitable for IC architecture. The Pspice simulation results using 0.25μm TSMC CMOS parameters have justified the theoretical anticipation.
Keywords :
CMOS analogue integrated circuits; capacitors; circuit simulation; operational amplifiers; oscillators; IC architecture; Pspice simulation; TSMC CMOS parameters; amplitude controllability; bias current; grounded capacitors; oscillation condition; oscillation frequency; quadrature sinusoidal oscillator; quadrature waveform; size 0.25 mum; voltage differencing tranconductance amplifiers; CMOS integrated circuits; Capacitors; Controllability; Electrical engineering; Frequency control; Oscillators; Transconductance; CMOS; VDTA; quadrature oscillator; sine wave;
Conference_Titel :
Information and Communication Technology, Electronic and Electrical Engineering (JICTEE), 2014 4th Joint International Conference on
Conference_Location :
Chiang Rai
Print_ISBN :
978-1-4799-3854-4
DOI :
10.1109/JICTEE.2014.6804102
