Help with simulate sigma-delta modulator

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Denny Matthew

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I need a 3rd order single bit DSM. Can u please help me do that?
 

3rd order sigma-delta has various configurations. please study following texts:
"A Third-Order Sigma-Delta Modulator with Extended Dynamic Range" by:Williams
"Continuous-Time Sigma-Delta AD Conversion" By:Ortmanns
"Understanding Delta-Sigma Data Converters" By: Schreier.
are you going to do simulation or implementation?
 
Hi kappa_am,
I also design Sigma delta modulator (SDM) MASH 1-1-1 for fractional-n pll in Cadence,
Could you please give me some advices in simulate SDM power spectral density? Because SDM MASH 1-1-1 has 3 bits output and I do not know how to simulate its psd,
Thank you,
Irisaru
 
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