I have been using the 4351 for some time now and it has been working fine, but recently I have been having problems with the lock detect. I cant seem to ever get the LD led to come on. As a test, I changed "LD Pin Mode" to high in the provided software and the LD led will still not turn on. Am I correct in assuming I should expect the led to come on?
Also, I am looking to power the eval board directly with 3.3V. Can this voltage be applied directly to the red test points labeled AVDD and VOUT?
Message was edited by: Tyler Nagy I wanted to add to this post saying that I used the MUXOUT to view the digital lock and it was in-fact high. Perhaps I damaged the LD pin somehow?