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ADF4350 intermittent Lock Detect

Question asked by dorongam on Nov 27, 2013
Latest reply on Dec 22, 2013 by dorongam

I made a frequency sweep from 1.9GHz to 3.5GHz at 2.5MHz steps every 1 Second and monitored the Digital Lock Detect (DLD).

I found that the DLD was intermittent and in some frequencies the synthesizer frequency was locked but the DLD signal was low.

when I re-sent the programming it was ok.

Please advise why the DLD is intermittent?