Design and analysis of low power low phase noise VCO

被引：2

作者：

Dudulwar, P. ^{[1
]}

Shah, K. ^{[1
]}

Le, H. ^{[1
]}

Singh, J. ^{[1
]}

机构：

[1] Victoria Univ, Melbourne, Vic, Australia

来源：

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE MIXED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS | 2006年

关键词：

oscillators; radio frequency; integrated circuit design; phase noise; low power;

D O I：

10.1109/MIXDES.2006.1706579

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, a novel methodology to implement a LC tank voltage controlled oscillator (VCO) with lower phase noise is proposed and verified. A relationship between the phase noise, power consumption and the bias current is fully analysed to improve the performance of the VCO. The architecture of the VCO employs two current mirrors one at the top of the cross-coupled complementary VCO and the other at the tail end to balance the impedance and give the exact replica of the current in both the arms of current mirror circuit. The phase noise measured is -110.9 dBc/Hz at the offset frequency of 100KHz, -126.4 dBc/Hz at 600kHz and -140.5 dBc/Hz at 3MHz from the carrier frequency. The VCO consumes only 1.72mW of power at 2V supply. Results show that a 33% reduction in power consumption is achieved as compared to the VCO using a tail current mirror and 46.75% to the VCO without current mirrors.

引用

页码：256 / +

页数：2

共 9 条

[1]

CHENG Y, BSIM3V3 MANUAL

[2]

Hershenson M. D. M., 1999, 1999 IEEE/ACM International Conference on Computer-Aided Design. Digest of Technical Papers (Cat. No.99CH37051), P65, DOI 10.1109/ICCAD.1999.810623

[3]

Jia L, 2005, IEEE INT SYMP CIRC S, P376

[4]

LE H, 2006, J ANALOG INTEGRA JAN

[5]

Lee T.H., 1998, DESIGN CMOS RADIO FR

[6] Oscillator phase noise: A tutorial [J].

Lee, TH ;

Hajimiri, A .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2000, 35 (03) :326-336

[7]

ROFOURGAN A, 1996, IEEE INT SOL STAT CI

[8]

SHAH K, 2005, DESIGN TEST INTEGRAT

[9]

SHAH K, 2005, SPIE C MICR MEMS NAN

← 1 →