RE: USB 2.0 Compliance

Computer Audio Asylum

Music servers and other computer based digital audio technologies.

In Reply to: RE: USB 2.0 Compliance posted by Thorsten on April 22, 2015 at 00:15:21:

Thanks very much for the informative reply Thorsten - much appreciated!

I did some more digging, including reviewing the the USB 2.0 compliance documents and found the current specification, which of course, is exactly has you have quoted.

I also suspected, but was not at all sure, of current having little to not effect on impedance - they are two different systems in the same connector.

There is one renderer/ music player manufacturer's web page that states they use a "dedicated USB Audio Class 2.0 output", which is marked as providing 5V at 0.2A... I am guessing their USB implementation does not comply with appropriate standards. Interesting.

Thanks again Thorsten.

Cheers,
91.

"Confusion of goals and perfection of means seems to characterise our age." Albert Einstein

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Follow Ups Full Thread

Topic - USB 2.0 Compliance - 91derlust 20:28:11 04/21/15 (2)

RE: USB 2.0 Compliance - Thorsten 00:15:21 04/22/15 (1)

RE: USB 2.0 Compliance - 91derlust 02:10:04 04/22/15 (0)

Follow Ups

RE: USB 2.0 Compliance - 91derlust 02:10:04 04/22/15 (0)

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