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AKM4399 dac
AKM4399 dac
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Old 1st December 2011, 06:13 PM   #1
play458 is offline play458  Thailand
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Default AKM4399 dac

Has anyone done this project or not
In Thailand, there are groups that are going to this project.
Do you think it would be worth a try. Give me some advise.
I have not been listening.
esoteric k03
Thank you very much.
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File Type: jpg akm43991.JPG (83.5 KB, 1174 views)
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Old 4th December 2011, 08:00 PM   #2
jean-paul is offline jean-paul  Netherlands
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Since nobody seems to reply: I would go the ESS Sabre way.
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Old 6th December 2011, 02:27 PM   #3
play458 is offline play458  Thailand
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Thank you. You all to read.
But I wanted to try. AK4399
Now, I just started doing this project, and then some.
I need a little time.
I will be watching the same show.
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Old 15th December 2011, 02:45 PM   #4
play458 is offline play458  Thailand
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update my project
I'm waiting PCB
Thank you for visiting.
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File Type: jpg ak4001.JPG (52.5 KB, 1009 views)
File Type: jpg ak4002.JPG (54.5 KB, 987 views)
File Type: jpg ak4003.JPG (72.5 KB, 979 views)
File Type: jpg ak4004.JPG (63.7 KB, 270 views)
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Old 15th December 2011, 05:16 PM   #5
Ken Newton is offline Ken Newton  United States
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Given that the AK4399 produces a 2VRMS differential line-level output, I should think that perhaps the most critical stage will be your output buffer design and implementation. Particularly, should you want to produce a single-ended output from the AK4399 DAC's differential drive. An op-amp is probably the least risky solution to perform this function.

Should you want to stay away from op-amps then a transformer might immediately come to mind as the most elegant solution. However, while the AK4399 voltage outputs are rated to drive a 1k load, I believe that they also are only rated to drive up to 100pF of load capacitance. One meter of interconnect cable typically has more distributed capacitance than that, let alone including the input capacitance of the following component and the output transformer's parasitic winding capacitance. Which means that some form of active output buffer will most likely be necessary, even using an transformer.

Last edited by Ken Newton; 15th December 2011 at 05:25 PM.
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Old 16th December 2011, 07:02 AM   #6
Sergelisses is offline Sergelisses  France
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Quote:
Originally Posted by play458 View Post
update my project
I'm waiting PCB
Thank you for visiting.
Hello

Can you give us some details of your PCB

What is the blue PCB on the right picture ?

Thanks
Serge
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Old 16th December 2011, 04:19 PM   #7
play458 is offline play458  Thailand
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Hello Sergelisses
A friend of mine is designing PCB for akm4399 Will bring in next time.
I take it out of the blue pcb from playstation2 it is modchip ....It fits akm4399
Was used to test akm4399 Just that.
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Old 16th December 2011, 04:39 PM   #8
play458 is offline play458  Thailand
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็HELLO Ken Newton
Thanks for the suggestion I'm waiting PCB from my friend When it comes.
I will start to build AKM4399 My team has a lot of people.
We share the same job done.
Wait for a little one.Thank you for reading and commenting.
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Old 16th December 2011, 05:50 PM   #9
AAK is offline AAK  United States
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I was looking at adding the AKM4396 to the list of DACs I can use with my new SRC (WM8804 => SRC4192/SRCAD1896). I'll try the AKM4399 instead. Looks like a really nice DAC. Thanks!

http://www.diyaudio.com/forums/digit...-platform.html

Best Regards,

Al
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Old 16th December 2011, 06:31 PM   #10
Sergelisses is offline Sergelisses  France
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Quote:
Originally Posted by play458 View Post
Hello Sergelisses
A friend of mine is designing PCB for akm4399 Will bring in next time.
I take it out of the blue pcb from playstation2 it is modchip ....It fits akm4399
Was used to test akm4399 Just that.
Is it a PCB with just the AKM 4399 or with the SPDIF receiver ,power supply ....

Serge
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