GodDAC - 192/24 USB DAC - Page 4

woodturner-fran · 9th September 2010, 07:23 AM

What about power supplies for the board? Would there be an easy way to use, for example battery power?

Sorry, I haven't any programming knowledge....

Fran

BizonGod · 9th September 2010, 07:35 AM

Board is powered by USB. OpAms by DCDC converter with CLC filter including
tantalum caps and large FC series electrolytic one. Every one chip on board is
well decoupled (each power pin of analog part has own 100n + 10uF or 47uF).
Of course, you can bypass DCDC and take power for analog part from external power
supply (-+10V, +5V)

BizonGod · 9th September 2010, 07:21 PM

Today opAmps arrived (except LME49710 - will be in week or 2)
Soon I will solder them, and make new photo.

carpenter · 10th September 2010, 08:59 AM

Interesting thread. BizonGod, you may find Nelson Pass' discrete DIY I/V converter valuable. The information is located in "Articles" which you can locate in the bar at the top of the page.

Noiseisgood · 13th September 2010, 05:43 AM

I am following this project with interest, I think its great!

Please keep the updates posted, very interesting reading Bizongod

Hacker · 14th November 2010, 11:02 PM

Quote:

Originally Posted by BizonGod

I have plans to make it open source (code, schematics, gerber files for PCB),
but I need confirmation from programmers that they will take part in software.

Code project web page started :
goddac - Project Hosting on Google Code
Soon I will place there all usefull examples to mix up

Hi,

I just came across your project while researching async USB audio. Very interesting.

I'm a long-time C and x86 asm programmer and reverse-engineer, almost exclusively in the security field (binary analysis, stack/heap overflows, shellcode development etc) although recently I've been working on some ARM reverse engineering projects on the iPad, particularly in the field of bypassing/disabling certain security mechanisms. I can't really say much more about that due to NDA issues.

Anyway, I'm game for getting involved in this project. Let me know what you need and I'll let you know if I can help. It sounds like a lot of fun

Cheers,
Carl

Sostenuto · 30th June 2011, 03:16 PM

Any updates on the project? I'd love to see the schematics.

9th September 2010, 07:23 AM	#31
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	What about power supplies for the board? Would there be an easy way to use, for example battery power? Sorry, I haven't any programming knowledge.... Fran __________________ Visit www.tirnahifi.org!!

9th September 2010, 07:21 PM	#33
BizonGod diyAudio Member Join Date: May 2006	Today opAmps arrived (except LME49710 - will be in week or 2) Soon I will solder them, and make new photo. __________________ GodDAC - http://code.google.com/p/goddac/

10th September 2010, 08:59 AM	#34
carpenter Paper mache horn fabricator diyAudio Member Join Date: Mar 2002 Location: Oregon City, Oregon	Interesting thread. BizonGod, you may find Nelson Pass' discrete DIY I/V converter valuable. The information is located in "Articles" which you can locate in the bar at the top of the page. __________________ I enjoy audio so much that I constructed a web site. I share my ideas at: www.inlowsound.com

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9th September 2010, 07:35 AM	#32
BizonGod diyAudio Member Join Date: May 2006	Board is powered by USB. OpAms by DCDC converter with CLC filter including tantalum caps and large FC series electrolytic one. Every one chip on board is well decoupled (each power pin of analog part has own 100n + 10uF or 47uF). Of course, you can bypass DCDC and take power for analog part from external power supply (-+10V, +5V)

13th September 2010, 05:43 AM	#35
Noiseisgood diyAudio Member Join Date: Mar 2009	I am following this project with interest, I think its great! Please keep the updates posted, very interesting reading Bizongod

30th June 2011, 03:16 PM	#37
Sostenuto diyAudio Member Join Date: May 2009	Any updates on the project? I'd love to see the schematics.

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