A wide-band mixer for WCDMA/CDMA2000 in 90nm digital CMOS process

Author

Peng, Solti ; Chen, Chien-Chung ; Bellaouar, Abdellatif

Author_Institution

Texas Instrum. Inc., Dallas, TX, USA

fYear

2005

Firstpage

179

Lastpage

182

Abstract

A wide-band mixer with high linearity and insensitive to process and temperature variations, intended for used in WCDMA and CDMA2000 receivers, is implemented in a 90 nm digital CMOS process. The measurement data consistently show greater than 7 dBm of IIP3 and 52 dBm of IIP2 in both low and high frequency bands. In the low frequency band, the variation of IIP3 and IIP2 over the temperature range from -20°C to 80°C is only 0.2 dB and 2.2 dB respectively. The whole mixer for I/Q, including LO divider and LO buffer, consumes less than 8 mA in the low band and 13 mA in the high bands.

Keywords

3G mobile communication; CMOS integrated circuits; UHF integrated circuits; UHF mixers; radio receivers; -20 to 80 degC; 13 mA; 1800 MHz; 1900 MHz; 2100 MHz; 8 mA; 800 MHz; 90 nm; CDMA2000; I/Q mixer; IIP2; IIP3; LO buffer; LO divider; WCDMA receivers; conversion gain; digital CMOS process; high linearity mixer; process/temperature variation insensitivity; wide-band mixer; CMOS process; Filters; Frequency; Impedance; Linearity; Mixers; Multiaccess communication; Noise figure; Transceivers; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE

ISSN

1529-2517

Print_ISBN

0-7803-8983-2

Type

conf

DOI

10.1109/RFIC.2005.1489623

Filename

1489623