A 130nm CMOS tunable digital frequency divider for dual-band microwave radiometer

Author

Dermit, Davide ; Ducati, Fabio ; Balsamo, Domenico ; Lucchi, Paolo ; Borgarino, Mattia ; Jacquemod, Gilles

Author_Institution

Dept. of Inf. Eng., Univ. of Modena & Reggio Emilia, Modena, Italy

fYear

2009

fDate

13-16 Dec. 2009

Firstpage

203

Lastpage

206

Abstract

An inductorless, divide-by-256 fixed-modulus digital frequency divider with programmable input sensitivity, fabricated in 130 nm CMOS bulk process, is presented. Both the absence of inductors and the architecture used allow to obtain a small sized chip. The fabricated frequency divider exhibits two minima in sensitivity at 4.4 GHz and 6.25 GHz consuming about 5.4 mW from a 1.2 V voltage supply. The total active area of the frequency divider is 360 Ã— 115 Â¿m².

Keywords

CMOS integrated circuits; circuit tuning; frequency dividers; microwave devices; radiometry; CMOS bulk process; CMOS tunable digital frequency divider; divide-by-256 fixed-modulus digital frequency divider; dual-band microwave radiometer; frequency 4.4 GHz; frequency 6.25 GHz; inductorless digital frequency divider; programmable input sensitivity; size 130 nm; voltage 1.2 V; CMOS process; Clocks; Dual band; Frequency conversion; MOSFETs; Microwave devices; Microwave radiometry; Radiofrequency integrated circuits; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits, and Systems, 2009. ICECS 2009. 16th IEEE International Conference on

Conference_Location

Yasmine Hammamet

Print_ISBN

978-1-4244-5090-9

Electronic_ISBN

978-1-4244-5091-6

Type

conf

DOI

10.1109/ICECS.2009.5410975

Filename

5410975