I am using AD9375 interfaced with Xilinx Mpsoc +XCZU11EG.
In DAC output, (DDS and NCO)I getting spurs around my Output frequency ( where delta is around 25kHz and 50kHz) which is degrading my SFDR . RBW - 100Hz,
My sampling rate is 245.76MSPS and device clock is 122.88MHz and single shot SYSREF -> 0.96MHz
I have checked my clock output, i got exact frequency what i need which is attached below without spurs.
Then i checked all my Regulators OUTPUT. In 25KHz , i am getting around -80dBm. (too Less)
Kindly let me know why this is 25kHz ( Delta Tone) is there near to the output frequency