sigma delta

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2nd order sigma delta modulator

by Krishna Sankar on April 8, 2007

In a previous post, the variance of the in-band quantization noise for a first order sigma delta modulator was derived. Taking it one step furhter, let us find the variance of the quantization noise filtered [...]

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Sigma delta modulation

by Krishna Sankar on April 3, 2007

In an earlier post, it was mentioned that delta modulator without the quantizer is identical to convolving an input sequence with . Let us first try to validate that thought using a small MATLAB example [...]

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