Make a DIY USB audio DAC in a day

Subject: General Tech | August 28, 2013 - 01:06 PM |
Tagged: usb audio, ti, DIY, burr-brown

Perfect for a beginner electronics project or just a way for someone with experience to quickly put together a working audio DAC this project that Hack a Day linked to will give you seriously decent sound.  While the components are all labelled Texas Instruments they are in fact from Burr-Brown as TI purchased the maker of high end DACs a long time ago.  The PCM1794A is a 132dB SNR 24-bit 192kHz DAC which outperforms the DAC found in many stereos and the OPA4134 OpAmp is nothing to sneer at either.  Unless you can etch your own boards you will have to order one and wait a bit before putting this project together but it sounds like it will be work it

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"The on-board +3.3V and -5V voltages are generated by inductor-less power supplies. As [Jan-Erik] mentions in his write-up, the ‘high-end’ was put between single quotes because the PCB is single sided and uses through hole passive components. The board was designed using Kicad, etched by himself and put in a machined enclosure. All the production files can be downloaded from his website so you may produce it within a day."

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Tech Talk

Source: Hack a Day

August 28, 2013 | 06:02 PM - Posted by willmore (not verified)

What if I can design and etch my own boards, though?

August 28, 2013 | 07:26 PM - Posted by Jeremy Hellstrom

then do it now!

August 30, 2013 | 09:52 PM - Posted by willmore (not verified)

I'd be glad to give it a shot if PCPER wants to organize some kind of group buy to make it practical.

August 28, 2013 | 06:58 PM - Posted by Brash

Can we have a link please Jezza???

Thanks mate!

August 28, 2013 | 07:28 PM - Posted by Jeremy Hellstrom

Fixed.  If I manage to forget, the link to the source is always at the very bottom of the post

August 29, 2013 | 02:03 AM - Posted by Brash

Ahh thanks, that'll teach more for not reading to the end...the very end.

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