liusupeng
Advanced Member level 4
for simple first order sigma delta adc model, which one of the above is correct?
for (a), the transfer function is Y=X+(1-{Z}^{-1 } )Q.
and for (b), the transfer function is Y={Z}^{ -1}X+(1-{Z}^{-1 })Q.
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It is also interesting to note that both structures are used in second order sigma delta modelling.