Quadrature oscillator solution suitable with arbitrary and electronically adjustable phase shift

Author

Sotner, Roman ; Jerabek, Jan ; Petrzela, Jiri ; Prokop, Roman ; Vrba, Kamil ; Kartci, Aslihan ; Dostal, Tomas

Author_Institution

Fac. of Electr. Eng. & Commun., Brno Univ. of Technol., Brno, Czech Republic

fYear

2015

fDate

24-27 May 2015

Firstpage

3056

Lastpage

3059

Abstract

This paper discusses new quadrature oscillator consisting of two all-pass sections and inverting amplifier that is capable of generating two signals with arbitrary phase shift between them. Constrains and limits of this simple idea are discussed. Verifications of theoretical expectations were provided by Spice simulations based on active devices with TSMC 0.18 μm NMOS and PMOS technological models.

Keywords

MOS integrated circuits; harmonic oscillators (circuits); operational amplifiers; Spice simulations; TSMC NMOS technological model; TSMC PMOS technological model; active devices; all-pass sections; arbitrary adjustable phase shift; electronically adjustable phase shift; inverting amplifier; quadrature oscillator solution; size 0.18 mum; Analog integrated circuits; Capacitors; Gain control; Oscillators; Semiconductor device modeling; Signal processing; Tuning; Arbitrary phase shift; all-pass section; electronic control; multiphase oscillator; operational transconductance amplifier; quadrature oscillator;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2015 IEEE International Symposium on

Conference_Location

Lisbon

Type

conf

DOI

10.1109/ISCAS.2015.7169332

Filename

7169332