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AD6676 NCO post tuning

Question asked by Itamar_Mazaki on Jun 5, 2018
Latest reply on Jun 8, 2018 by THA


I am using the ad6676 and would like to use different IF and ddc center frequencies during runtime. 

The idea is to use only one lane, wide IF, ie. 160MHz, large decimation value (so a narrow ddc) and center it somewhere in the IF passband during runtime - after the calibration phase.

I want to calibrate the ad6676 using profiles, but be able to tune the ddc quickly using the currenly chosen profile.

(I have tried to change the values of the MIX_tuning registers in order to accomplish that, but they do not seem to make an effect.)

Could you please help me accomplish that goal?