AnsweredAssumed Answered

ad9361 filter design wizard: Fstop always limited to <= Data_rate / 2

Question asked by obenj on Aug 21, 2015
Latest reply on Sep 17, 2015 by dpu

Could the ad9361 filter wizard be modified to allow Fstop (and Fpass) to be greater than data_rate / 2 in the case that FIR interpolation rate is 2x or 4x? The if statement at ad936x-filter-wizard/AD9361_Filter_Wizard.m at master · analogdevicesinc/ad936x-filter-wizard · GitHub currently locks the wizard from producing half-band or quarter-band filters when FIR interpolation is 2x or 4x respectively. By this I mean setting the FIR corner frequency equal the data-rate.

 

Thanks.

Outcomes