Well first what does LYK mean?
just for starters. I would say you need to investigate how your coefficients in your structure will react to finite UGB, gain and slew rate.
But for basics, you UGB should be 3 to 4 times you sampling frequency Fs. Your gain should be higher then your OSR, so 128, and your slew rate will be fine unless your UGB is lower then 3 to 4 due to other techniques of compensating for finite GBW within your loopfilter coefficients...
Hope this helps
Jgk