Title :
A 1.4GHz Upconversion Mixer Design Using the gm/ID Method Suitable for a Multi-Band Analog Interface
Author :
Cortes, Fernando Paixão ; Bampi, Sergio
Author_Institution :
Univ. Fed. do Rio Grande do Sul, Porto Alegre
Abstract :
This paper addresses the analysis and design of an upconversion mixer suitable for a multi-band analog interface for CMOS SOCs. This block must relocate an input signal from 3 different frequency bands (FM, VHF/UHF and CDMA/GSM) to a fixed IF frequency of 1.4 GHz. The mixer architecture is based on a Gilbert Cell and multi-tanh linearization technique, providing the required gain and linearity for different input frequencies. The mixer was designed in 0.18 mum CMOS process using the gm/ID design method. A 5bB gain, 12dB noise figure, and 1.5dBm IIP3 were obtained under different input frequencies.
Keywords :
CMOS integrated circuits; UHF integrated circuits; UHF mixers; integrated circuit design; linearisation techniques; system-on-chip; CMOS technology; Gilbert cell; frequency 1.4 GHz; gain 5 dB; multi-tanh linearization; multiband analog interface; noise figure 12 dB; system-on-chip; upconversion mixer design; CMOS process; Design methodology; Frequency conversion; Frequency synthesizers; Gain; Linearity; MOS devices; Mixers; Noise figure; Signal processing;
Conference_Titel :
Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-1377-5
Electronic_ISBN :
978-1-4244-1378-2
DOI :
10.1109/ICECS.2007.4511261
