Design and implementation of sigma delta analog-to-digital converter
Oversampling Analog-to-Digital Converter based on high-order sigma-delta modulation provides an effective means of achieving high-resolution analog-to-digital conversion in VLSI technology. Its high-order noise shaping reduces the quantization noise in the signal band. This thesis includes the formu...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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2009
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| Online Access: | http://hdl.handle.net/10356/19550 |
| _version_ | 1826112124370288640 |
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| author | Ong, Chee Kian. |
| author2 | Ng, Lian Soon |
| author_facet | Ng, Lian Soon Ong, Chee Kian. |
| author_sort | Ong, Chee Kian. |
| collection | NTU |
| description | Oversampling Analog-to-Digital Converter based on high-order sigma-delta modulation provides an effective means of achieving high-resolution analog-to-digital conversion in VLSI technology. Its high-order noise shaping reduces the quantization noise in the signal band. This thesis includes the formulation of the equation for the minimum amplitude requirement of the first-order sigma delta modulator. This formula can predict the minimum amplitude of a sinewave required for the successful operation of a first-order modulator. The non-linear characteristic of the first-order modulator's noise is observed in conjunction with the finding of the minimum amplitude requirement. The non-linear characteristic of the first-order modulator's noise causes a cleft on the SNR graph of a multistage modulator when the implemented gains value of the modulator differ from the designed gains value. This has greatly affected the choice of architectures for implementation. |
| first_indexed | 2024-10-01T03:01:50Z |
| format | Thesis |
| id | ntu-10356/19550 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:01:50Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/195502023-07-04T15:25:49Z Design and implementation of sigma delta analog-to-digital converter Ong, Chee Kian. Ng, Lian Soon School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Oversampling Analog-to-Digital Converter based on high-order sigma-delta modulation provides an effective means of achieving high-resolution analog-to-digital conversion in VLSI technology. Its high-order noise shaping reduces the quantization noise in the signal band. This thesis includes the formulation of the equation for the minimum amplitude requirement of the first-order sigma delta modulator. This formula can predict the minimum amplitude of a sinewave required for the successful operation of a first-order modulator. The non-linear characteristic of the first-order modulator's noise is observed in conjunction with the finding of the minimum amplitude requirement. The non-linear characteristic of the first-order modulator's noise causes a cleft on the SNR graph of a multistage modulator when the implemented gains value of the modulator differ from the designed gains value. This has greatly affected the choice of architectures for implementation. Master of Engineering 2009-12-14T06:14:48Z 2009-12-14T06:14:48Z 1997 1997 Thesis http://hdl.handle.net/10356/19550 en NANYANG TECHNOLOGICAL UNIVERSITY 112 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits Ong, Chee Kian. Design and implementation of sigma delta analog-to-digital converter |
| title | Design and implementation of sigma delta analog-to-digital converter |
| title_full | Design and implementation of sigma delta analog-to-digital converter |
| title_fullStr | Design and implementation of sigma delta analog-to-digital converter |
| title_full_unstemmed | Design and implementation of sigma delta analog-to-digital converter |
| title_short | Design and implementation of sigma delta analog-to-digital converter |
| title_sort | design and implementation of sigma delta analog to digital converter |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits |
| url | http://hdl.handle.net/10356/19550 |
| work_keys_str_mv | AT ongcheekian designandimplementationofsigmadeltaanalogtodigitalconverter |