High Frequency Power Optimized Ring Voltage Controlled Oscillator for 65nm CMOS Technology-Review
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2014 by IJETT Journal|
|Year of Publication : 2014|
|Authors : Neha K. Mendhe , Prof. M. N. Thakare , Prof. G .D. Korde
Neha K. Mendhe , Prof. M. N. Thakare , Prof. G .D. Korde."High Frequency Power Optimized Ring Voltage Controlled Oscillator for 65nm CMOS Technology-Review", International Journal of Engineering Trends and Technology(IJETT), 8(3),127-129 February 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
A voltage controlled oscillator (VCO) is one of the most important basic building blocks in analog and digital circuits. Like any other circuit, with a VCO there are a number of design requirements that need to be known from the beginning of the design process. These basic requirements for the VCO will govern many of the decisions concerning the circuit topology and other fundamental aspects of the circuit. Some of the basic requirements are Tuning range, Tuning gain, tuning shift for a given tuning voltage change and low phase noise. This paper presents Ring voltage controlled oscillator (VCO) for wide tuning rage with low power dissipation. The proposed ring oscillator is designed in four fully differential stages. The differential stages are designed to reduce phase noise. This paper presents the previous work on voltage controlled ring oscillator.
 Joo-Myoung Kim, Seok-Kyun Han, and Sang-Gug Lee “A Low-Noise Four-Stage Voltage-Controlled Ring Oscillator in Deep-Submicrometer” IEEE Transactions on Circuits And Systems—Ii: Express Briefs, Vol. 60, No. 2, Pp.71-75, February 2013.
 William Shing Tak Yan “A 900-Mhz CMOS Low-Phase-Noise Voltage-Controlled Ring Oscillator” IEEE transactions on circuits and systems—ii: analog and digital signal processing, vol. 48, no. 2, February 2001
 JubayerJalil, Manum Bin Ibne Reaz, Labonnah Farzana Rahman,“A 2.45 GHz CMOS Voltage Controlled Ring Oscillator for Active Transponder”, Published in Intelligent and Advance systems(ICIAS) 2012th International Conference,pp.807-810.
 Z. Z. Chen T. C. Lee, “The design and analysis of dual-delay-path ring oscillators,”IEEE Trans. Circuits Syst. I, Reg. Papers, vol. 58, no.3,pp. 470–478, Mar. 2011.
 Yuping Toh, John A. McNeill “Single-Ended to Differential Converter for Multiple-Stage Single-Ended Ring Oscillators” Published in IEEE Journal Of Solid-State Circuits, Vol. 38, No. 1, January 2003. Pp 141-145.
 Wancheng Zhang, Nan-Jian Wu , Tamotsu Hashizume and Seiya Kasai, “Novel Hybrid Voltage Controlled Ring Oscillators Using Single Electron and MOS Transistors”, Published in Nanotechnology, IEEE Transactions on volume 6,issue 2, March 2007,Pp 146-157.
 Y. A. Eken and J. P. Uyemura, “A 5.9-GHz voltage-controlled ring oscillator in 0.18-?m CMOS,”IEEE J. Solid-State Circuits, vol. 39, no. 1,pp. 230–233, Jan. 2004.
 J. Choi and K. Lim J. Laskar, “A ring VCO with wide and linear tuning characteristics for a cognitive radio system,” in Proc. IEEE Radio Freq. Integra. Circuits Symp., 2008, pp. 395–398.
Phase noise, ring oscillator, voltage controlled oscillator (VCO)