Re: Chinese ADF4351 signal source
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I just took delivery of an ADF5355 synth (against all my principles, from China) and it had the same really poor 25MHz CXO on board. I tried it, before doing the mod and it was unbelievably off freq - some 1000 ppm.
After converting for external 10MHz source (which is not really optimum frequency for that chip, but does work if you enable the ref-doubler) seems to work fine, but will benefit from the DC supply decoupling mods.
On Sat, 26 Dec 2020 at 11:54, Andy Talbot <andy.g4jnt@...> wrote: