Re: DAB and 3.5mm CDC hardware update

Posted by mcaldwelva on Sep 15, 2016; 6:48pm
URL: http://bluesaab-forum.90.s1.nabble.com/DAB-and-3-5mm-CDC-hardware-update-tp609p677.html

Hey, I'm working with the 3.5mm module as well. According to the TI specs, we should be using non-polarized caps for C11-C14. But I've been using the caps that Seth specified for a little over a year now and they seem to work fine. I have been trying to hunt down some sporadic high-pitched noise. I don't think it's related to these at all, but I might try swapping them out to be sure.

I've also thought about replacing the 1044 regulator with an 1144 so I can turn off the drivers when they're not in use for a little power savings. Overall seems to be a very nicely designed board though.

The only real question I had was C8. Looking at the as-built, it appears to be reversed wrt to the board?