Title :
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
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 × 115 ¿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;
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
DOI :
10.1109/ICECS.2009.5410975
