Is there a usb dac out there that does not need a pc

tinears02 · 13th March 2008, 03:33 AM

ie the dac itself contains a microcontroller
so that it can be a master. The input would be
a bunch of uncompressed wav files from say,
a usb thumb drive. This external thumb drive
would be slaved to the usb dac - a transportless
digital source with the possibility of minimal
transport induced jitter. A really low jitter clock
can then be used.

Does such a kit or project exist?

Or can the std usb receiver chips from TI etc be
used with some simple glue logic and clock to
accomplish this?

TIA
tinears

abzug · 13th March 2008, 07:27 AM

There are USB DACs that are master of the flow control and so are jitter immune, but they still rely on PC and won't work with the miniature USB drives.

Archwn · 20th March 2008, 08:14 PM

some say pcm29xx can be used with out a pc. i will not going to believe this until i have tried it myself.

tinears02 · 21st March 2008, 05:33 AM

here...

Playback sound files controlled by a Pic

SD card is fine too.

tinears02

13th March 2008, 03:33 AM	#1
tinears02 diyAudio Member Join Date: Sep 2003 Location: earth	Is there a usb dac out there that does not need a pc ie the dac itself contains a microcontroller so that it can be a master. The input would be a bunch of uncompressed wav files from say, a usb thumb drive. This external thumb drive would be slaved to the usb dac - a transportless digital source with the possibility of minimal transport induced jitter. A really low jitter clock can then be used. Does such a kit or project exist? Or can the std usb receiver chips from TI etc be used with some simple glue logic and clock to accomplish this? TIA tinears

21st March 2008, 05:33 AM	#4
tinears02 diyAudio Member Join Date: Sep 2003 Location: earth	a similar request here... Playback sound files controlled by a Pic SD card is fine too. tinears02

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13th March 2008, 07:27 AM	#2
abzug Account Disabled Join Date: Jan 2006 Location: whereisit	There are USB DACs that are master of the flow control and so are jitter immune, but they still rely on PC and won't work with the miniature USB drives.

20th March 2008, 08:14 PM	#3
Archwn diyAudio Member Join Date: Oct 2006	some say pcm29xx can be used with out a pc. i will not going to believe this until i have tried it myself.