1.5 V 10-12.5 GHz integrated CMOS oscillators

Author

Ting-Ping Liu

Author_Institution

Bell Labs., Lucent Technol., Holmdel, NJ, USA

fYear

1999

fDate

17-19 June 1999

Firstpage

55

Lastpage

56

Abstract

As both wireless and optical communications systems move towards high-data-rate applications, high-frequency low-phase-noise oscillators are important building blocks in the receiver and transmitter design. CMOS oscillators with integrated inductors are therefore well suited for such applications. This paper describes two integrated CMOS LC oscillators designed for operation over 10 GHz. The first one is based on the ring-coupled quadrature VCO configuration with wide tuning range, while the other is a 4-stage ring oscillator using inductive load. Fabricated in a 0.25-/spl mu/m CMOS technology, both oscillators can operate from a single supply voltage as low as 1.5 V. The highest operating frequencies for the quadrature VCO and ring oscillator are 11 and 12.55 GHz, respectively.

Keywords

CMOS analogue integrated circuits; MMIC oscillators; low-power electronics; voltage-controlled oscillators; 0.25 micron; 1.5 V; 10 to 12.5 GHz; CMOS LC oscillator; inductive load; integrated inductor; ring oscillator; ring-coupled quadrature VCO; tuning range; CMOS technology; Inductors; Optical design; Optical fiber communication; Optical receivers; Optical transmitters; Ring oscillators; Tuning; Voltage-controlled oscillators; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits, 1999. Digest of Technical Papers. 1999 Symposium on

Conference_Location

Kyoto, Japan

Print_ISBN

4-930813-95-6

Type

conf

DOI

10.1109/VLSIC.1999.797234

Filename

797234