On chip 0.5 V 2 GHz four-output quadrature-phase oscillator

被引：9

作者：

Elamien, Mohamed B. ^{[1
]}

Maundy, Brent J. ^{[1
]}

Belostotski, Leonid ^{[1
]}

Elwakil, Ahmed S. ^{[1
,2
,3
]}

机构：

[1] Univ Calgary, Dept Elect & Comp Engn, Calgary, AB, Canada

[2] Univ Sharjah, Dept Elect & Comp Engn, Sharjah, U Arab Emirates

[3] Nile Univ, Nanoelect Integrated Syst Ctr NISC, Cairo, Egypt

来源：

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2020年 / 126卷

关键词：

Oscillators; Cross-coupled cells; Differential pair cells; Quadrature oscillators; LC-QVCO; CMOS; NOISE; VCO;

D O I：

10.1016/j.aeue.2020.153393

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we present a quadrature-phase oscillator that can provide four output voltages while operating from a single 0.5 V supply. The oscillator is based on two cross-coupled modified differential pair cells and provides signals with a phase difference of +/- 180 degrees or +/- 90 degrees depending on the chosen output nodes. A test chip with an active area of 0.175 mm(2) was designed and fabricated in a 65-nm CMOS process and its measurement results show a phase noise of -119.5 dBc/Hz at 1 MHz offset from a carrier frequency of 1.967 GHz while consuming 6.15mW. Finally, experimental results show a FoM of 185.5 dB for the core oscillator and a quadrature-phase error of less than +/- 0.5 degrees.

引用

页数：8

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