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Old 12th May 2004, 11:09 AM   #1
rjm is offline rjm  Japan
Richard Murdey
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Lightbulb USB DAC (in the cable!?)

x-pro

Its got the USB DAC chip built into the cable, powered from the USB bus. Only $20.

The opposite extreme is the cosecant from Wavelength Audio.

What I'd like is something in the middle. A kit board with the USB controlled and DAC chip(s), but DIY power supply and analog output stage.

Maybe get a cheapo commercial thing and rip the board out to do my own mods?


-rjm
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Old 12th May 2004, 12:00 PM   #2
MWP is offline MWP  Australia
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Why dont you just order a sample PCM2902 (or similar) from TI?
They are very easy to use.
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Old 12th May 2004, 02:04 PM   #3
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Richard Murdey
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So the samples come with an evaluation board do they? That wasn't clear from the web site. It looked to me like the evaluation kit cost $149 US.

Looks like the PCM2707 is a nice option to use with a separate DAC chip. For the built in DAC then the PCM2702 seems the way to go.

-rjm
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Old 12th May 2004, 05:06 PM   #4
MWP is offline MWP  Australia
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No, they dont come with an eval board.

But its not difficult to make up a board using somthing like vero-board (strip-board).
Wouldnt be pretty, but then again, neither would be the hack jobs you would have to do to other products.
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Old 13th May 2004, 03:42 AM   #5
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Default Here's a couple ideas

The first is a real product: the TwinDac Plus, also available as a kit
http://www.diy-systems.com/
click on "Electronics"

The other DAC is not available yet as far as I know, but the folks at Ack! dac are working on a USB version of their dac.

I have not heard either, but Bert at bd-designs is one of the few people whose opinion on equipment I trust.
Steve
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Old 13th May 2004, 08:19 AM   #6
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Richard Murdey
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Good it may be. Good it better be since it costs $2000 US!

I was rather thinking on something along the lines of this product:

DIY Eden USB DAC

But is seems (I can't read chinese) to be no longer available.

-rjm
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