I am trying to implement a delta-sigma modulator block diagram in Matlab Simulink but can't find a $1$-bit quantizer (which is required in the modulator) anywhere. Could anyone please tell me how to go about it?

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    $\begingroup$ floor(.5*(sign(x)+1)) $\endgroup$ – user28715 Aug 7 '17 at 13:37
  • $\begingroup$ why do you need the floor() function, @StanleyPawlukiewicz? $\endgroup$ – robert bristow-johnson Aug 8 '17 at 2:47
  • $\begingroup$ Sign(0)=0. Floor(.5)=0 $\endgroup$ – user28715 Aug 8 '17 at 5:58

You can see this example of Sigma-Delta A/D Conversion.


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