Please use this identifier to cite or link to this item:
https://doi.org/10.1109/TCSI.2008.2010592
DC Field | Value | |
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dc.title | A CMOS VGA with DC offset cancellation for direct-conversion receivers | |
dc.contributor.author | Zheng, Y. | |
dc.contributor.author | Yan, J. | |
dc.contributor.author | Xu, Y.P. | |
dc.date.accessioned | 2014-06-16T09:24:14Z | |
dc.date.available | 2014-06-16T09:24:14Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | Zheng, Y., Yan, J., Xu, Y.P. (2009). A CMOS VGA with DC offset cancellation for direct-conversion receivers. IEEE Transactions on Circuits and Systems I: Regular Papers 56 (1) : 103-113. ScholarBank@NUS Repository. https://doi.org/10.1109/TCSI.2008.2010592 | |
dc.identifier.issn | 10577122 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/53945 | |
dc.description.abstract | A CMOS dB-linear variable gain amplifier (VGA) with a novel I/Q tuning loop for dc-offset cancellation is presented. The CMOS dB-linear VGA provides a variable gain of 60 dB while maintaining its 3-dB bandwidth greater than 2.5 MHz. A novel exponential circuit is proposed to obtain the dB-linear gain control characteristics. Nonideal effects on dB linearity are analyzed and the methods for improvement are suggested. A varying-bandwidth LPF is employed to achieve fast settling. The chip is fabricated in a 0.35μm CMOS technology and the measurement results demonstrate the good dB linearity of the proposed VGA and show that the tuning loop can effectively remove dc offset and suppress I/Q mismatch effects simultaneously. © 2009 IEEE. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/TCSI.2008.2010592 | |
dc.source | Scopus | |
dc.subject | dB-linear variable-gain amplifier (VGA) | |
dc.subject | DB-linear VGA | |
dc.subject | DC offset | |
dc.subject | Dc offset | |
dc.subject | Direct conversion receiver | |
dc.subject | Direct-conversion receiver | |
dc.subject | I/Q tuning | |
dc.subject | Pre-distortion compensation | |
dc.type | Article | |
dc.contributor.department | ELECTRICAL & COMPUTER ENGINEERING | |
dc.description.doi | 10.1109/TCSI.2008.2010592 | |
dc.description.sourcetitle | IEEE Transactions on Circuits and Systems I: Regular Papers | |
dc.description.volume | 56 | |
dc.description.issue | 1 | |
dc.description.page | 103-113 | |
dc.identifier.isiut | 000263297800010 | |
Appears in Collections: | Staff Publications |
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