Injection locking LC dividers for low power quadrature generation

Author

Mazzanti, A. ; Uggetti, P. ; Rossi, P. ; Svelto, F.

Author_Institution

Dipatimento di Ingegneria dell´´Informazione, Universita di Modena e Reggio Emilia, Italy

fYear

2003

fDate

21-24 Sept. 2003

Firstpage

563

Lastpage

566

Abstract

The trade off between phase noise and quadrature accuracy, typical of coupled voltage controlled oscillators, is broken if injection locking dividers are used for I and Q generation. Based on the general behavioral modeling of regenerative frequency dividers, this paper derives analytical expressions for locking band and phase deviation from quadrature. An injection locking quadrature generator, embedded in a 0.18 μm CMOS direct conversion receiver, shows 24% frequency locking range while drawing 4 mA. The phase deviation from quadrature measured on down-converted signals is 0.8°.

Keywords

CMOS integrated circuits; frequency dividers; injection locked oscillators; low-power electronics; phase noise; 0.18 micron; 4 mA; CMOS direct conversion receiver; I/Q generation; coupled voltage controlled oscillators; frequency locking range; injection locking LC dividers; injection locking frequency dividers; locking band; low power quadrature generation; phase noise; quadrature accuracy; quadrature phase deviation; regenerative frequency dividers; CMOS technology; Capacitance; Energy consumption; Frequency conversion; Injection-locked oscillators; Phase measurement; Phase noise; Power generation; Semiconductor device modeling; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 2003. Proceedings of the IEEE 2003

Print_ISBN

0-7803-7842-3

Type

conf

DOI

10.1109/CICC.2003.1249461

Filename

1249461