I was merely offering a clarification that while I -- could -- offer some useful information about this specific topic, no matter what it is that I post here, someone will criticize me for whatever it is that I comment on.....just as you have done here!!! So.....I'm right!!!
Of course. That's what I do usually. It seems that many ignore this possibility, though, and have mixed results with ground pour.
As long as your posts contain a dose of bragging, self-advertising and/or whining, it is not likely to change.
Of course. When you scratch a wound, it itches.
Typical sulking. The solution is controlling your posts. You have been given enough tips to know what to post and what not.
It may not be enough to separate grounds with a simple "cut" in the ground pours, depending what you are dealing with, some stronger medicine may be needed. D/A converters come to mind, for layout concerns in this respect. There should be a wealth of reference material on this, at least for relevant eval boards.
Of course. My comment was in the context of standard "baseband" audio. As soon as high-speed logic or RF are mixed with audio, a whole lot of constraints are added.
I designed probably 80 DA, currently doing an SPDIF right now, but that's the first one in 21 years. I worked on the UAC/UAC2 protocol (USB Audio Class) mostly on Asynchronous part of that. I have 32 products of the year awards in 14 countries. I never put separate grounds on a DA, now for higher end products I do isolate so say differential output to 10K:10K transformer to usually a tube gain stage and out single ended. I think so far this year we shipped like 12K*5 so ~60K USB dacs this year.
And.....here's how you do just that!!!.....
