I have problem for setting ADF4351 PLL to wanted 3031.25MHz frequency (with reference freq=30.72MHz and channel spacing (step)=360kHz. It would result in very large variation of output frequency. (3031.16047....MHz)
But when I try ADF4355-2 PLL software under the same condition, I can get the wanted 3031.25MHz frequency by 3031.250000002MHz.
could ADI advise if it's device issue or software tool issue?