finerain22
Newbie level 6
I'm disigning a classic socond order sigma-delta modulator(CIFB structure), wiht osr=128, fs=64K,ENOB=13bits. How to determine the op gain for the first integrators?
Should the dc error at the output of the first integrators should be smaller than 1/2 LSB?
Or we can other ristrictions to determine the gain spec on the first integrators?
Another problem following, how to determine the gain requirement on the second integrator?
Thanks!
Should the dc error at the output of the first integrators should be smaller than 1/2 LSB?
Or we can other ristrictions to determine the gain spec on the first integrators?
Another problem following, how to determine the gain requirement on the second integrator?
Thanks!