Music Main board for diyer

[acvtre]

Is there the possibility to have a "clean" usb output in order to avoid galvanic isolators or stuff like this when using a usb dac?

[marce]

Is it a double sided placement boards?

[castleeric]

Hi,
This board design for output i2s and spdif only. Seprating DA module may get better analogue. I change the layout to ver1.1 adding one pic-e and pic for testing. It is still testing. If it is good and stable I will sale it for sure, but not too much 1 manufacrtue batch 0.5k pices.

Regards,

Eric

Originally Posted by kp93300

Hi
I am interested to know more about the board.
You can hook up a spdif/ i2s enabled dac to the board to get analogue out to an amp ?
Are there being tested now ?
ARe you offering a group buy or for for sale ?

cheers

kp93300

[castleeric]

Originally Posted by castleeric

Hi,
This board design for output i2s and spdif only. Seprating DA module may get better analogue. I change the layout to ver1.1 adding one pic-e and pic for testing. It is still testing. If it is good and stable I will sale it for sure, but not too much 1 manufacrtue batch 0.5k pices.

Regards,

Eric

[castleeric]

Originally Posted by acvtre

Is there the possibility to have a "clean" usb output in order to avoid galvanic isolators or stuff like this when using a usb dac?

Hi,

It is not esay get "clean USB", Cause noise leak by GND awlays, and it is almost impossible for me to isolate power supply and GND of south_bridge from other chip . But I have idependent power supply and GND for IS2 and SPDIF chip on this board.

This board may use USB DAC if OS can drive it.

regards,

Eric

[castleeric]

Originally Posted by marce

Is it a double sided placement boards?

Hi,

Yes, It is double side. I put capacitor, inductor, XO in the other side for EMI issue.

Regards,

Eric