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you are wrong ! 1/f noise is low frequecy noise, how can it be filtered by digital filter?
as you said, chopper tech must be used, then 1/f noise can be filtered by the following digital filter.
In the design of single loop 3 ordersc sigma delta modulator ,how to eliminate the 1/f noise of the first intergator beside the chopper theck ?
Also ,due to the suppress of the noise tranfer founction in low frequency , the cap of second and third integrator can be very small, but how to...
the picture is in the attachment , how to settle the input common voltage of the ota
in the picture .In my opinion, it seems can't settle the input common voltage of the ota ?
in some papers ,they concerns the phase margin when gain is 0 dB, but when when the loopgain is not come to 0, the phase margin is not enough, is this not important?
hi, every one, i am modeling the second order modulator , how to model the 1 bit quantizer ,just replace it with a comparator , can i get some model examples?
thank you all.
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