roadbuster
Junior Member level 3
I am trying to design a sigma-delta DAC. On page 40 of **broken link removed**, a figure of the in-band noise for various types of samplers is shown:
I understand that these spectrums are for ADCs. Do the same spectrums apply to DACs? That is, if I use a simple, oversampled DAC, will the quantization noise be spread between DC and Fs/2? Similarly, if I use a first-order sigma-delta DAC, is the quantization noise suppressed like in the figure?
As well, can anyone explain the math behind how oversampling spreads the quantization noise over a larger bandwidth?
Thank you for any help.