Re: ADF4351 MUX Pin
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Yes, I realise now why I wasn't seeing anything.
It seems the N divided output mustn't be selected when the chip invokes the annoying VCO band select / recal procedure. Since it does this when the final register is set, if I "update all registers" as my control software does that procedure will automatically occur, hence lock fail
If Reg 2 were updated alone, then no doubt it would work. But can't be bothered updating my control software to write to one register at a time :-(
(although, as the MUXOUT is set using option buttons and they have a click method, a single register write need only be a couple of lines of extra VB6 code ....)
On Fri, 12 Apr 2019 at 09:17, brian.flynn via Groups.Io <email@example.com> wrote: