1-GHz and 2.8-GHz CMOS injection-locked ring oscillator prescalers

Author

Betancourt-Zamora, R.J. ; Verma, S. ; Lee, T.H.

Author_Institution

Allen Center for Integrated Syst., Stanford Univ., CA, USA

fYear

2001

fDate

14-16 June 2001

Firstpage

47

Lastpage

50

Abstract

We implemented prescalers that can operate up to 2.8-GHz by exploiting the injection locking phenomena in differential CMOS ring oscillators. We tested a 5-stage, 1-GHz injection-locked modulo-8 prescaler fabricated in a 0.24-/spl mu/m CMOS technology that consumes 350 /spl mu/W of power and occupies 0.012 mm/sup 2/ of die area. The locking range is 20 MHz and the locked phase noise is -110 dBc/Hz @ 100 kHz. A 2.8-GHz, 3-stage, modulo-4 divider is also presented.

Keywords

CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; injection locked oscillators; low-power electronics; phase noise; prescalers; 0.24 micron; 1 GHz; 2.8 GHz; 350 muW; CMOS; die area; differential CMOS ring oscillators; injection-locked ring oscillator prescalers; locked phase noise; locking range; modulo-8 prescaler; CMOS technology; Frequency conversion; Frequency synthesizers; Injection-locked oscillators; Phase noise; Power dissipation; Radio frequency; Ring oscillators; Semiconductor device modeling; Tail;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits, 2001. Digest of Technical Papers. 2001 Symposium on

Conference_Location

Kyoto, Japan

Print_ISBN

4-89114-014-3

Type

conf

DOI

10.1109/VLSIC.2001.934191

Filename

934191