Simulation of the ideal DAC in Cadence

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moisiad

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Hi

I am simulating in Spectre the ideal 8bit DAC from the AhdlLib. What seems strange is that from the DFT analysis the SFDR is about 60db. It is to small for the ideal case. Have you ever come up with this case?

Thanks
 

how much is the idea?
be careful that it is only 8 bit.
 

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