Residential College | false |
Status | 已發表Published |
NTF zero compensation technique for passive sigma-delta modulator | |
Hussain A.2; Sin S.-W.2; Seng-Pan U.2; Martins R.P.1,2 | |
2011-12-05 | |
Conference Name | 2011 Asia Pacific Conference on Postgraduate Research in Microelectronics & Electronics |
Source Publication | Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics |
Pages | 82-85 |
Conference Date | 6-7 Oct. 2011 |
Conference Place | Macau, China |
Abstract | A novel technique is proposed to compensate zeroes of Noise Transfer Function (NTF) for single loop low pass passive switched capacitor sigma-delta modulator (PSDM). PSDM uses switched capacitor (SC) integrator as a loop filter. Poles of loop filter are zeroes of NTF. The proposed technique for SC integrator shifts the poles of SC integrator from inside the unit circle to z=1 at DC. As a result zeroes of NTF for PSDM also get modified and shifts, which greatly improves the noise suppression and noise-shaping performance. Simulation results in simulink, shows that the technique of proposed SC integrator for 2 Order PSDM with 4-bit quantizer having oversampling ratio (OSR) = 32 improves 18dB SNDR over traditional SC integrator. © 2011 IEEE. |
DOI | 10.1109/PrimeAsia.2011.6075076 |
URL | View the original |
Language | 英語English |
Scopus ID | 2-s2.0-82455175766 |
Fulltext Access | |
Citation statistics | |
Document Type | Conference paper |
Collection | Faculty of Science and Technology DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING |
Affiliation | 1.Instituto Superior Técnico 2.Universidade de Macau |
First Author Affilication | University of Macau |
Recommended Citation GB/T 7714 | Hussain A.,Sin S.-W.,Seng-Pan U.,et al. NTF zero compensation technique for passive sigma-delta modulator[C], 2011, 82-85. |
APA | Hussain A.., Sin S.-W.., Seng-Pan U.., & Martins R.P. (2011). NTF zero compensation technique for passive sigma-delta modulator. Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, 82-85. |
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