Title :
A 250nm CMOS low phase noise differential VCO circuit without varactors
Author :
Kosykh, Anatoly V. ; Murasov, Konstantin V. ; Lepetaev, Aleksandr N. ; Zavyalov, Sergey A.
Author_Institution :
Omsk State Tech. Univ., Omsk, Russia
Abstract :
In the article the realization of the new circuit of differential VCO without varactors in 250 nm CMOS technology has been described. The tuning of VCO is realized as a circuit changing load of oscillator. The control curve for differential VCO without varactors is presented. The results of comparing of phase noise for circuits differential oscillators based on N-channel and P-channel transistors has been described.
Keywords :
CMOS integrated circuits; phase noise; voltage-controlled oscillators; CMOS low phase noise differential VCO circuit; CMOS technology; N-channel transistors; P-channel transistors; size 250 nm; Capacitance; Frequency control; Resistance; Transistors; Varactors; Voltage-controlled oscillators; CMOS; Quartz resonator; differential oscillator; excitation circuit; phase noise; temperature compensation;
Conference_Titel :
Frequency Control Symposium & the European Frequency and Time Forum (FCS), 2015 Joint Conference of the IEEE International
Print_ISBN :
978-1-4799-8865-5
DOI :
10.1109/FCS.2015.7138808
