Titlebook: Look-Ahead Based Sigma-Delta Modulation; Erwin Janssen,Arthur van Roermund Book 2011 Springer Science+Business Media B.V. 2011 Analog Circ

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https://doi.org/10.1007/978-94-007-1387-1Analog Circuit Design; Data Converters; Digital Circuit Design; Sigma Delta Modulators

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Noise-Shaping Quantizer Model,ng solution, and the selection function determines the output symbol. In the case of a normal sigma-delta modulator the cost function is implemented by the loop-filter and the selection function by the quantizer. This generalization of the sigma-delta modulator structure will enable to addition of look-ahead functionality in the next chapter.

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Book 2011come to a solution for the above mentioned specific issues arising from 1-bit sigma-delta modulation for SA-CD. In order to achieve this objective an analysis is made of the possibilities for improving the performance of digital noise-shaping look-ahead solutions. On the basis of the insights obtain

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Pruned Tree Sigma-Delta Modulation for SA-CD,has only a minimal impact on the SNR, while the distortion and the noise-modulation performance of the converter are strongly reduced, resulting in the ideal sigma-delta converter for high-end audio applications.

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