Digitally Assisted Analog and RF Circuits

Kenichi OKADA  

IEICE TRANSACTIONS on Electronics   Vol.E98-C   No.6   pp.461-470
Publication Date: 2015/06/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E98.C.461
Type of Manuscript: INVITED PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
CMOS,  wireless,  reconfigurable,  RF,  analog,  Digital assistance,  

Full Text: FreePDF(2.3MB)

In this paper, the importance and perspective for the digitally-assisted analog and RF circuits are discussed, especially related to wireless transceivers. Digital calibration techniques for compensating I/Q mismatch, IM2, and LO impairments in cellular, 2.4 GHz WiFi, and 60 GHz WiGig transceivers are introduced with detailed analysis and circuit implementations. Future technology directions such as the shift from digitally-assisted analog circuit to digitally-designed analog circuit will also be discussed.