My latest project - DAC + headphone amp - Page 3

jleaman · 20th June 2005, 06:59 PM

The link is not working. Can you send them to me too ?

itsparks at uniserve . com

tobias_svensk · 20th June 2005, 08:08 PM

For those who think they have a problem with downloading the files (i thought so too at first) here is the schematics anyway (hope it's ok gmarsh)
http://www.ettnet.se/~tobias/diy/sch.png

jleaman · 21st June 2005, 05:24 AM

I want the eagle files.

PLZ

Porksoda · 21st June 2005, 09:36 AM

So am I correct in my guess that each input is in a different format, and you simply switch what format it is decoding?

gmarsh · 21st June 2005, 11:53 AM

since people seem to be having trouble with rapidshare, i've split up the file and i'm posting it in this thread.

This file contains the main Eagle .brd/.sch files, the AVR microcontroller code and the front panel designs.

You'll need Eagle Hobby or better to edit the files; the schematic has two pages and the board is 160x100mm 4-layer. To compile the AVR software, you'll need avr-gcc - Google for "winavr" if you're using a Windows machine. And the front panels are designed using the software from http://frontpanelexpress.com

gmarsh · 21st June 2005, 11:54 AM

here's the libraries required for Eagle; an AVR library which contains the Mega8 part and a "hpaparts.lbr" library which contains several parts used in this design.

gmarsh · 21st June 2005, 11:55 AM

First half of the gerbers - four copper layers and drill files.

gmarsh · 21st June 2005, 11:56 AM

and the second half of the gerbers - solder mask, silkscreen, fab drawing and build instructions.

Enjoy.

KimBOlesen · 19th April 2006, 10:02 AM

Hi

Nice project ! How many MHz is the crystal? Will it accept 44.1khz and 48Khz input? This project seems to be perfect for my digital room correction PC... only need to replace the I/V stage.

Best regards

Kim Olesen

gmarsh · 20th April 2006, 12:44 PM

Quote:

Originally posted by KimBOlesen
Hi

Nice project ! How many MHz is the crystal? Will it accept 44.1khz and 48Khz input? This project seems to be perfect for my digital room correction PC... only need to replace the I/V stage.

Best regards

Kim Olesen

The crystal is 29.4912MHz. I'm using the 'CB3LV' series from CTS Corp, available from Digikey.

Acceptable input range is 32 to 192KHz.

20th June 2005, 06:59 PM	#21
jleaman diyAudio Member Join Date: Apr 2002 Location: Nanaimo	The link is not working. Can you send them to me too ? itsparks at uniserve . com __________________ Baby Danika, Born January 20th 1:54am.. http://itsparks.dyndns.orgMix a LittleUntangle&Opendns.org Perfect..

21st June 2005, 05:24 AM	#23
jleaman diyAudio Member Join Date: Apr 2002 Location: Nanaimo	I want the eagle files. PLZ __________________ Baby Danika, Born January 20th 1:54am.. http://itsparks.dyndns.orgMix a LittleUntangle&Opendns.org Perfect..

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20th June 2005, 08:08 PM	#22
tobias_svensk diyAudio Member Join Date: Jan 2004 Location: Hudiksvall	For those who think they have a problem with downloading the files (i thought so too at first) here is the schematics anyway (hope it's ok gmarsh) http://www.ettnet.se/~tobias/diy/sch.png

21st June 2005, 09:36 AM	#24
Porksoda diyAudio Member Join Date: May 2005 Location: New York	So am I correct in my guess that each input is in a different format, and you simply switch what format it is decoding?

19th April 2006, 10:02 AM	#29
KimBOlesen diyAudio Member Join Date: Aug 2005	Hi Nice project ! How many MHz is the crystal? Will it accept 44.1khz and 48Khz input? This project seems to be perfect for my digital room correction PC... only need to replace the I/V stage. Best regards Kim Olesen

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