A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators
In evaluating Continuous-Time Sigma Delta (ΣΔ) Modulators, the generation of highly accurate results requires long simulation time due to the nonlinear nature of the system....
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2010
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| Online Access: | https://hdl.handle.net/10356/91743 http://hdl.handle.net/10220/6367 http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5403962&queryText%3DA+Circuit+Based+Behavioral+Modeling+of+Continuous-Time+Sigma+Delta+Modulators%26openedRefinements%3D*%26searchField%3DSearch+All http://www.isic2009.org/ |
| _version_ | 1826120035132768256 |
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| author | Leow, Yoon Hwee Zhang, Fan Teh, Li Lian Siek, Liter |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Leow, Yoon Hwee Zhang, Fan Teh, Li Lian Siek, Liter |
| author_sort | Leow, Yoon Hwee |
| collection | NTU |
| description | In evaluating Continuous-Time Sigma Delta (ΣΔ)
Modulators, the generation of highly accurate results requires
long simulation time due to the nonlinear nature of the system. In
most cases, a compromise has to be made to trade off precision
for speed [2]. This paper presents a circuit-based high level model
implemented in the MATLAB SIMULINK environment so as to
achieve a faster speed of simulation. Designed in a differential
manner, the model provides good visualization of the actual
circuit at the early stage of design. To maintain simulation
accuracy, circuit nonidealities such as system clock jitter,
integrator noise, opamp finite gain, bandwidth and slew rate as
well as the digital to analog converter (DAC) mismatches are
included in the model. For demonstration purpose, a 4th order CT
ΣΔ modulator with NRZ (Non-Return to Zero) architecture is
implemented. With the proposed models, key design
specifications for the functional building blocks are derived. |
| first_indexed | 2024-10-01T05:09:56Z |
| format | Conference Paper |
| id | ntu-10356/91743 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:09:56Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | ntu-10356/917432019-12-06T18:11:13Z A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators Leow, Yoon Hwee Zhang, Fan Teh, Li Lian Siek, Liter School of Electrical and Electronic Engineering IEEE International Symposium on Integrated Circuits (12th : 2009 : Singapore) DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits In evaluating Continuous-Time Sigma Delta (ΣΔ) Modulators, the generation of highly accurate results requires long simulation time due to the nonlinear nature of the system. In most cases, a compromise has to be made to trade off precision for speed [2]. This paper presents a circuit-based high level model implemented in the MATLAB SIMULINK environment so as to achieve a faster speed of simulation. Designed in a differential manner, the model provides good visualization of the actual circuit at the early stage of design. To maintain simulation accuracy, circuit nonidealities such as system clock jitter, integrator noise, opamp finite gain, bandwidth and slew rate as well as the digital to analog converter (DAC) mismatches are included in the model. For demonstration purpose, a 4th order CT ΣΔ modulator with NRZ (Non-Return to Zero) architecture is implemented. With the proposed models, key design specifications for the functional building blocks are derived. Published version 2010-08-30T07:39:33Z 2019-12-06T18:11:13Z 2010-08-30T07:39:33Z 2019-12-06T18:11:13Z 2009 2009 Conference Paper Leow, Y. H., Zhang, F., Teh, L. L., & Siek, L. (2009). A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators. In proceedings of the 12th International Symposium on Integrated Circuits: Singapore, (pp.109-112). https://hdl.handle.net/10356/91743 http://hdl.handle.net/10220/6367 http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5403962&queryText%3DA+Circuit+Based+Behavioral+Modeling+of+Continuous-Time+Sigma+Delta+Modulators%26openedRefinements%3D*%26searchField%3DSearch+All http://www.isic2009.org/ en © 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. 4 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Leow, Yoon Hwee Zhang, Fan Teh, Li Lian Siek, Liter A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators |
| title | A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators |
| title_full | A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators |
| title_fullStr | A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators |
| title_full_unstemmed | A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators |
| title_short | A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators |
| title_sort | circuit based behavioral modeling of continuous time sigma delta modulators |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits |
| url | https://hdl.handle.net/10356/91743 http://hdl.handle.net/10220/6367 http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5403962&queryText%3DA+Circuit+Based+Behavioral+Modeling+of+Continuous-Time+Sigma+Delta+Modulators%26openedRefinements%3D*%26searchField%3DSearch+All http://www.isic2009.org/ |
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