Soekris' DAC implementations

[TNT]

The important part is:
- Have you removed the USB HUB?
- Are you using Amanero's latest CPLD ver 1080 & CPU ver 1080 firmware?

Shorting those 2 pins... USB out, USB in...

Looking for device
Please erase the device.

I'm unlucky...

 

[deanoUK]

Shorting those 2 pins... USB out, USB in...

Looking for device
Please erase the device.

I'm unlucky...

Not sure what you shorted (!!??) - you have to complete this procedure
to the letter.

 

[TNT]

Yes I have follow it. I cant seem to be able to erease the flash whne following the inststruction. Shorting = contact betwen pads.

So I do it for 1 second (and many other durations...)
Go and iintiate update and get the answer - Please erase the device which I intepret as the pad shorting did not succeed...


//

 

[RollE2k]

When the computer detects the device after erasing, you shouldn't install the Amanero driver, but the ATMEL driver - which is included in the OEMtool folder, then you can flash. And when it's flashed, you should change back to the Amanero driver.

 

[TNT]

Do you mean that I have to follow the instruction :-D

//

 

[RollE2k]

Yeah, but i cant complain - did the same mistake myself. I always try the "without manual"-way myself first, haha.

 

[TNT]

Thanks for staying with me

Now I will install my opto receiver instead. Then turn back to the USB challenge...

//

 

[Tyimo]

Hi!
I'm not a DAC expert like most of you here in this thread, so I would like to ask:

Can someone explain to me simply and clearly how to be connected this DAC to a "USB to Spdif" converter ?
(It is a CM6631 converter. I have a Spdif out RCA connector in the converter and a coax cable to the DAC)

If I use +/-DC, which pin is + and - ind the power input connector?

There will be example schematics in the manual.

Where is this manual???
I got the board, but without any detailed user guide, or manual.....

Thanks in advance!

Tyimo

 

[Stixx]

I got the board, but without any detailed user guide, or manual.....

As has been said in the Vendors Area thread Soren is working hard to finish the manual... should be just a matter of days .
Also check the thread for some possible information on how to connect things.

 

[Tyimo]

Thanks!

Up to 24 bit / 384 Khz input from SPDIF, I2S and USB (via USB to I2S interface board), with isolation on the I2S interface.

I thought it will be "plug and play" with a normal spdif coax source....

 

[ristar]

Thanks!

I thought it will be "plug and play" with a normal spdif coax source....

I don't believe the board was ever positioned as such. At the same time, the pictures of the board clearly show that there are no such connectors installed on the board.

For connecting your spdif connection to the DAC you can follow the diagram drawn out by Soren (link on first post).. use SPDIF1

 

[rredline]

Can someone explain to me simply and clearly how to be connected this DAC to a "USB to Spdif" converter ?
(It is a CM6631 converter. I have a Spdif out RCA connector in the converter and a coax cable to the DAC)

Based on the info provided by Soekris, SPDIF input should be like this?
(Edited, added trafo and resistor)

 

[RollE2k]

No - according to instructions earlier you should put cap and pulse-transformer in between the input and the board - to keep the isolation!.

 

[Tyimo]

I don't believe the board was ever positioned as such. At the same time, the pictures of the board clearly show that there are no such connectors installed on the board.

Yes of course! I knew that I have to make myself the connection.

 

[Tyimo]

Based on the info provided by Soekris, SPDIF input should be like this:

Thanks, but I was afraid of this:

No - according to instructions earlier you should put cap and pulse-transformer in between the input and the board - to keep the isolation!.

 

[iTiberius]

Based on the info provided by Soekris, SPDIF input should be like this:

That must be balanced s/pdif input. I suggest you to use s/pdif2

Regards,
Tibi

 

[RollE2k]

It's actually really simple. One 0,1uF cap on signal. Then connect to the primary of a pulse transformer like the DA103C. Then secondary connected to the spdif1 + and - pins. So its actually only two more components.

 

[RollE2k]

That must be balanced s/pdif input. I suggest you to use s/pdif2

Regards,
Tibi

Spdif2 is for optical (Torx) reciever output directly only as far as i have understand it at least.

 

[ristar]

That must be balanced s/pdif input. I suggest you to use s/pdif2

Regards,
Tibi

Soren's post to help with connections

 

[Tyimo]

I suggest you to use s/pdif2

Hi Tibi!
I am beginner in DAC them. So, please tell me how to connect my spdif Coax cable to tis connector: the inside "hot" wire to the spdif2 pin and what about the ground?