ETRI Journal
- Volume 29 Issue 6
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- Pages.835-837
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- 2007
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- 1225-6463(pISSN)
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- 2233-7326(eISSN)
Multi-bit Sigma-Delta Modulator for Low Distortion and High-Speed Operation
- Kim, Yi-Gyeong (IT Convergence & Components Laboratory, ETRI) ;
- Kwon, Jong-Kee (IT Convergence & Components Laboratory, ETRI)
- Received : 2007.06.28
- Published : 2007.12.31
Abstract
A multi-bit sigma-delta modulator architecture is described for low-distortion performance and a high-speed operation. The proposed architecture uses both a delayed code and a delayed differential code of analog-to-digital converter in the feedback path, thereby suppressing signal components in the integrators and relaxing the timing requirement of the analog-to-digital converter and the scrambler logic. Implemented by a 0.13