In AD9172 how to correctly turn MSB shuffling on and off? On datasheet page 102, the address 0x15 [5:4] MSB shuffling control. What do these 2 bits do? What bits should I set to control the MSB shuffling? How many mode of MSB shuffling does it has?
Excellent questions.... And apologies for the short hand description in the Rev0 of the datasheet - it is a work-in-progress. I will write back as soon as I know.
In case it helps to determine the correct setting, with MSB shuffle enabled the DAC output would trade-off better SFDR for worse NSD. "By how much" is relative.
We'll have it fixed on the next datasheet revision.
MSB shuffle control. Set =1 to enable shuffling the MSBs, or set =0 to disable MSB shuffle and use the default (static) thermometer encoding instead.
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