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The Designer's Guide Community Forum › Design › Mixed-Signal Design › loop filter arichitecture in sigma-delta  ADC
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loop filter arichitecture in sigma-delta  ADC (Read 2855 times)
darrenxyz
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taiwan
loop filter arichitecture in sigma-delta  ADC
Jun 21st, 2007, 8:43pm  
in sigma delta ADC design,
simulink provide four architecture: cifb,crfb ciff,crff,
how to choose one of them?
do anyone have literature which have detailed analysis about the architecture?
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Berti
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Re: loop filter arichitecture in sigma-delta  
Reply #1 - Jun 21st, 2007, 10:31pm  
The loop filters are described in R.Schreiers books "Delta-Sigma Data Converters" or
"Understanding Delta-Sigma Data Converters". Or just download Schreiers matlab toolbox
from the matlab-exchange server, where the attached PDF will provide you with the necessary
information.

cifb : cascaded-integrator feedback form
crfb : cascaded-resonator feedback form
ciff : cascaded-integrator feedforward form
crff : cascaded-integrator feedforward form
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