A New Noise Shaping Approach for Sigma-Delta Modulators Using Two-Stage Feed-Forward Delays and Hybrid MASH-EFM
Sigma-delta modulators use a noise-shaping technique to curtail the noise power in the band of interest during digital-to-analog conversion. Error feedback modulator employs an efficient noise transfer function for time varying inputs than any other sigma-delta modulators. However, the efficiency of...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/3/740 |
| _version_ | 1797624742112395264 |
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| author | Khalid Ijaz Muhammad Adnan Waqas Tariq Toor Muhammad Asim Butt Muhammad Idrees Usman Ali Izaz Hassan Yazeed Yasin Ghadi Fuad A. Awwad Mohamed R. Abonazel Syed Rehan Ashraf |
| author_facet | Khalid Ijaz Muhammad Adnan Waqas Tariq Toor Muhammad Asim Butt Muhammad Idrees Usman Ali Izaz Hassan Yazeed Yasin Ghadi Fuad A. Awwad Mohamed R. Abonazel Syed Rehan Ashraf |
| author_sort | Khalid Ijaz |
| collection | DOAJ |
| description | Sigma-delta modulators use a noise-shaping technique to curtail the noise power in the band of interest during digital-to-analog conversion. Error feedback modulator employs an efficient noise transfer function for time varying inputs than any other sigma-delta modulators. However, the efficiency of the conventional noise transfer function degrades and the quantizer saturation issue provokes when the input signal reaches to full scale. This work proposes a new noise transfer function which is a combination of transfer functions of two-stage Feed-forward delays and a novel Hybrid multi-stage noise shaping-error feedback sigma-delta modulator. The noise transfer function of two-stage Feed-forward delays mitigates the concern of quantizer saturation. The noise transfer function offered by the Hybrid multi-stage noise shaping-error feedback architecture provides sustainable solutions to limit cycles and idle tones. The simulation concludes that the proposed noise-shaping approach obtains comparatively high signal-to-quantization noise ratio than the conventional error feedback modulators. Other performance parameters like spurious-free dynamic range, effective number of bits and signal-to-noise plus distortion ratio are also significantly improved. |
| first_indexed | 2024-03-11T09:46:50Z |
| format | Article |
| id | doaj.art-47d4036a73074cfbac45d1428f4de974 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T09:46:50Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-47d4036a73074cfbac45d1428f4de9742023-11-16T16:30:48ZengMDPI AGElectronics2079-92922023-02-0112374010.3390/electronics12030740A New Noise Shaping Approach for Sigma-Delta Modulators Using Two-Stage Feed-Forward Delays and Hybrid MASH-EFMKhalid Ijaz0Muhammad Adnan1Waqas Tariq Toor2Muhammad Asim Butt3Muhammad Idrees4Usman Ali5Izaz Hassan6Yazeed Yasin Ghadi7Fuad A. Awwad8Mohamed R. Abonazel9Syed Rehan Ashraf10Department of Electrical Engineering, University of Management and Technology, Lahore 54770, PakistanDepartment of Computer Science, University of Management and Technology, Lahore 54770, PakistanDepartment of Electrical Engineering, University of Engineering and Technology Lahore, Lahore 39161, PakistanDepartment of Electrical Engineering, University of Management and Technology, Lahore 54770, PakistanDepartment of Computer Science, University of Engineering and Technology Lahore, Lahore 39161, PakistanDepartment of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 03063, Republic of KoreaDepartment of Software Engineering, University of Science and Technology, Bannu 28100, PakistanDepartment of Computer Science, Al-Ain University, Al Ain P.O. Box 64141, United Arab EmiratesDepartment of Quantitative Analysis, College of Business Administration, King Saud University, P.O. Box 71115, Riyadh 11587, Saudi ArabiaDepartment of Applied Statistics and Econometrics, Faculty of Graduate Studies for Statistical Research, Cairo University, Giza 12613, EgyptDepartment of Industrial Engineering, University of Management and Technology, Lahore 54770, PakistanSigma-delta modulators use a noise-shaping technique to curtail the noise power in the band of interest during digital-to-analog conversion. Error feedback modulator employs an efficient noise transfer function for time varying inputs than any other sigma-delta modulators. However, the efficiency of the conventional noise transfer function degrades and the quantizer saturation issue provokes when the input signal reaches to full scale. This work proposes a new noise transfer function which is a combination of transfer functions of two-stage Feed-forward delays and a novel Hybrid multi-stage noise shaping-error feedback sigma-delta modulator. The noise transfer function of two-stage Feed-forward delays mitigates the concern of quantizer saturation. The noise transfer function offered by the Hybrid multi-stage noise shaping-error feedback architecture provides sustainable solutions to limit cycles and idle tones. The simulation concludes that the proposed noise-shaping approach obtains comparatively high signal-to-quantization noise ratio than the conventional error feedback modulators. Other performance parameters like spurious-free dynamic range, effective number of bits and signal-to-noise plus distortion ratio are also significantly improved.https://www.mdpi.com/2079-9292/12/3/740sigma-delta modulationdigital-to-analog converternoise shapingquantization error feedback modulator |
| spellingShingle | Khalid Ijaz Muhammad Adnan Waqas Tariq Toor Muhammad Asim Butt Muhammad Idrees Usman Ali Izaz Hassan Yazeed Yasin Ghadi Fuad A. Awwad Mohamed R. Abonazel Syed Rehan Ashraf A New Noise Shaping Approach for Sigma-Delta Modulators Using Two-Stage Feed-Forward Delays and Hybrid MASH-EFM Electronics sigma-delta modulation digital-to-analog converter noise shaping quantization error feedback modulator |
| title | A New Noise Shaping Approach for Sigma-Delta Modulators Using Two-Stage Feed-Forward Delays and Hybrid MASH-EFM |
| title_full | A New Noise Shaping Approach for Sigma-Delta Modulators Using Two-Stage Feed-Forward Delays and Hybrid MASH-EFM |
| title_fullStr | A New Noise Shaping Approach for Sigma-Delta Modulators Using Two-Stage Feed-Forward Delays and Hybrid MASH-EFM |
| title_full_unstemmed | A New Noise Shaping Approach for Sigma-Delta Modulators Using Two-Stage Feed-Forward Delays and Hybrid MASH-EFM |
| title_short | A New Noise Shaping Approach for Sigma-Delta Modulators Using Two-Stage Feed-Forward Delays and Hybrid MASH-EFM |
| title_sort | new noise shaping approach for sigma delta modulators using two stage feed forward delays and hybrid mash efm |
| topic | sigma-delta modulation digital-to-analog converter noise shaping quantization error feedback modulator |
| url | https://www.mdpi.com/2079-9292/12/3/740 |
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