Low Power Current-reused Voltage-Controlled Oscillator with Optimum Source Damping Resistors

Author

Liu, Chien-Hsuan ; Chan, Chia-Yo ; Wang, Ruey-Lue ; Su, Yun-Kuin

Author_Institution

Nat. Cheng Kung Univ. in Tainan, Tainan

fYear

2007

fDate

20-22 Dec. 2007

Firstpage

1017

Lastpage

1020

Abstract

In this paper, a low power current-reused voltage-controlled oscillator with source damping resistors is presented. It is designed by simulating optimum value of resistors. According to the simulation results, the output signals are symmetric and the 1/f³ region of the phase noise is reduced. The VCO₁ is designed at 2.26 GHz. The measured phase noise at 100-kHz and 1-MHz offset frequencies are -101.87 and -121.66 dBc/Hz. With 1.8 V voltage supply, the power consumptions of the VCO is 1.62 mW. This circuit is fabricated by TSMC 0.18 um CMOS process.

Keywords

CMOS integrated circuits; damping; low-power electronics; resistors; voltage-controlled oscillators; CMOS process; TSMC; frequency 1 MHz; frequency 100 kHz; frequency 2.26 GHz; low power current-reused voltage-controlled oscillator; optimum source damping resistors; power 1.62 mW; size 0.18 mum; voltage 1.8 V; Damping; Frequency measurement; Noise measurement; Phase measurement; Phase noise; Power measurement; Power supplies; Resistors; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits, 2007. EDSSC 2007. IEEE Conference on

Conference_Location

Tainan

Print_ISBN

978-1-4244-0637-1

Electronic_ISBN

978-1-4244-0637-1

Type

conf

DOI

10.1109/EDSSC.2007.4450300

Filename

4450300