Low Complexity Architecture of N-Path Mixers for Low Power Application
The complexity of harmonic rejection N-path mixer based receivers is studied in this paper. A solution to improve harmonic rejection without increasing the complexity is presented and compared with conventional LNA-first receivers. This solution is based on π-delayed driving signals that enable a N-...
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Published in | 2019 17th IEEE International New Circuits and Systems Conference (NEWCAS) pp. 1 - 4 |
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Main Authors | , , , , , |
Format | Conference Proceeding Journal Article |
Language | English |
Published |
IEEE
01.06.2019
Association for the Scientific Study of Consciousness |
Subjects | |
Online Access | Get full text |
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Summary: | The complexity of harmonic rejection N-path mixer based receivers is studied in this paper. A solution to improve harmonic rejection without increasing the complexity is presented and compared with conventional LNA-first receivers. This solution is based on π-delayed driving signals that enable a N-path mixer to present the same harmonic rejection than its 2N-path counterparts while reducing by 2 the frequency of operation and showing a reduced number of differential gain stages and switches. A 5-path mixer is thus proposed. It allows rejecting up to the 8 th harmonic with only 3 differential gain stages whereas only the 6 th harmonic would be rejected with conventional topologies having the same number of amplifier stages. |
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ISSN: | 1039-723X 1039-723X |
DOI: | 10.1109/NEWCAS44328.2019.8961234 |