DAC 2496 (AK4393) DAC KIT With CS8416+AK4393+5532 - Page 46 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 6th August 2011, 06:06 PM   #451
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
Default Final BOM (really?)

You can find attached my final BOM for the MINI2496 DAC.

A note on reading it...

The suggested parts are indicated in bold, under each supplier's row you can find the same part or an alternate one.

But remember the best part is alway the one in bold, the alternates are possibly worse.

The only exceptions are out of production parts, also indicated in bold in the 'Notes' row, such Rikens or Blackgates.

On AK4396 resistors: the right value is 2.4K but PRPs are not available in such value, if you buy alternates remember to buy 2.4K ones...


Enjoy...
Attached Files
File Type: pdf MINI2496 BOM.pdf (11.6 KB, 395 views)
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch"

Last edited by ClaveFremen; 6th August 2011 at 06:13 PM.
  Reply With Quote
Old 6th August 2011, 07:31 PM   #452
diyAudio Member
 
Join Date: Jun 2011
God job :-)


BTW. I think the output level is a little higher than normal. Compared to my cd and dvd player. Is it possible to lower the output level a bit ?

Last edited by Silver84; 6th August 2011 at 07:35 PM.
  Reply With Quote
Old 6th August 2011, 07:48 PM   #453
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
I've cleaned some old stuff...
Attached Files
File Type: pdf MINI2496 BOM.pdf (11.2 KB, 303 views)
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch"

Last edited by ClaveFremen; 6th August 2011 at 07:52 PM. Reason: Wrong attachment
  Reply With Quote
Old 7th August 2011, 07:42 AM   #454
diyAudio Member
 
Join Date: May 2011
Hello,

I need your help with some trouble I've run into with my AK4396 DAC.

I use Foobar2000+WASAPI output in Windows 7 x64 to send the music bit-perfectly to the DAC through the digital output of my on-board Realtek ALC892.
If I set the volume level to 100% (to achieve bit-perfect playback) the DAC is clipping. The top and the bottom of the analogue signal is simply missing. Obviously, if I lower the volume to about -5.93 dB (~80%) the clipping stops.
This problem also occurs using Windows mixer's digital output + Windows Media Player.

Is there a problem with the DAC itself, or with the Windows 7 x64's output system?

Thank you for your time and generous help in advance:
Jeff
  Reply With Quote
Old 7th August 2011, 09:39 AM   #455
erin is offline erin  Australia
diyAudio Member
 
Join Date: Nov 2006
Location: http://www.makeitpossible.com/
Interesting. I'm 99% sure the problem lies with the computer software.
The output stage of the DAC runs on +/-12 Volts so, with a 2 volt output there is no way the op-amp could be clipping. It must be your software. Try ASIO4ALL instead of wasapi and see if the problem persists. Thinking some more about it, perhaps your realtek driver has a problem? I presume you are using the SPDIF header on your motherboard?

does the DAC clip when you use a DVD/CD player as a SPDIF source?

Last edited by erin; 7th August 2011 at 09:44 AM.
  Reply With Quote
Old 7th August 2011, 12:22 PM   #456
diyAudio Member
 
Join Date: May 2011
I am using the S/PDIF header on the motherboard, of course.
However, in the past few hours I've tried out some other setups as well, but the result is always the same: the signal coming from the DAC's output is clipped.
The sources I've tried:
- ALC892 + Windows 7 x64 + WASAPI + foobar2000
- ALC892 + Windows 7 x64 + ASIO + foobar2000
- PCM2902 DIY soundcard + Windows 7 x64 + WASAPI + foobar2000
- ALC892 + Ubuntu 10.10 + ALSA + VLC & Rhythmbox
- Old Thomson DVD player

Here's a link to the test file I've used: 2shared - download 440Hz-15sec-44100Hz-16bit.wav

Thanks:
Jeff
  Reply With Quote
Old 7th August 2011, 07:06 PM   #457
diyAudio Member
 
Join Date: Oct 2005
Just finished my AK4396 kit build. Didn't bother wiring up the -V side of the board as I'm not using the stock opamp output stage. Using Tamura TD-1 output transformers so tapping the balanced signal straight off the AK4396. As I'm using an off-board 12VDC PSU (currently SMPS but SLA battery to follow) I replaced the 7812 with another MC7809CT.

Sounds great so far.
Attached Images
File Type: jpg 100_1123.jpg (934.8 KB, 992 views)
File Type: jpg 100_1124.jpg (933.4 KB, 892 views)
File Type: jpg 100_1125.jpg (924.6 KB, 837 views)
File Type: jpg 100_1126.jpg (854.0 KB, 758 views)
File Type: jpg 100_1127.jpg (870.1 KB, 682 views)
File Type: jpg 100_1128.jpg (889.8 KB, 179 views)
  Reply With Quote
Old 7th August 2011, 07:11 PM   #458
diyAudio Member
 
Join Date: Oct 2005
The photos above show the 96K LED (top) illuminating with either a 96K or 88.2K signal. Power LED is centre right, error bottom and no audio centre left.
  Reply With Quote
Old 7th August 2011, 07:25 PM   #459
diyAudio Member
 
Join Date: Jun 2011
Quote:
Originally Posted by sharpi31 View Post
The photos above show the 96K LED (top) illuminating with either a 96K or 88.2K signal. Power LED is centre right, error bottom and no audio centre left.
Looking nice :-)
Do you think the MC78/79xx regulator is a upgrade to the sound ? If yes, in what way then ?
  Reply With Quote
Old 7th August 2011, 07:29 PM   #460
diyAudio Member
 
Join Date: Oct 2005
I've read that they have the lowest noise of commonly available 78** regulators, so use them by default, but haven't done a direct comparison with anything else. I suspect the difference to sound quality will be dependant on external factors (how tolerant the components downstream are to noise etc.). Certainly no complaints.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
AK4393 burn... CIMONE Digital Line Level 5 24th June 2011 02:12 PM
AK4393 to CS4223? CIMONE Digital Line Level 0 13th December 2009 02:30 PM
AK4393 Serial Configuration Problem Aoxomox Digital Line Level 0 20th March 2009 05:25 PM
AK4393, CS8413 and CS8414 Data Sheets Blue_Max Digital Source 0 23rd December 2004 01:37 PM


New To Site? Need Help?

All times are GMT. The time now is 08:39 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2