Title :
An IP2 Improvement Technique for Zero-IF Down-Converters
Author :
Darabi, Hooman ; Kim, Hea Joung ; Chiu, Janice ; Ibrahim, Brima ; Serrano, Louie
Author_Institution :
Broadcom, Irvine, CA
Abstract :
An IP2 calibration circuit to improve the 2nd-order nonlinearity of mixers in zero or low-IF receivers is presented. The circuit allows the mixers to be optimized independently, and has negligible impact on receiver noise figure, area, and power consumption. A prototype transceiver including the calibration circuitry in 0.13mum CMOS is fabricated. An average IIP2 improvement of 18dB is measured
Keywords :
CMOS integrated circuits; frequency convertors; mixers (circuits); transceivers; 0.13 micron; IP2 calibration circuit; IP2 improvement technique; low-IF receivers; prototype transceiver; second-order nonlinearity; zero-IF down-converters; Automatic control; Baseband; Calibration; Circuit testing; Costs; Filters; Production facilities; Radio frequency; Switches; Voltage control;
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0079-1
DOI :
10.1109/ISSCC.2006.1696243
