Experience with this DIY DAC ?

[McCrackers]

What do you mean, that you connected the cap pluses together, or you used the left for feed and the right for out?

Correct. I took the input from the left cap's + with output to right cap"s + with ground at old 1117 ground pin location.

I will try same setup with ground at left cap's "-" instead.

 

[FOXYE]

What transformers recommended for this dac?

 

[Ryssen]

You obviously have a different board. Both my boards have ferrite beads after the regs.

Yes,that must be the case,can you post a picture of your board?

 

[Ryssen]

Where can I find Snow48_6 that is mentioned in post http://www.diyaudio.com/forums/digital-line-level/137976-experience-diy-dac-254.html#post2174307

 

[McCrackers]

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[McCrackers]

Where can I find Snow48_6 that is mentioned in post http://www.diyaudio.com/forums/digital-line-level/137976-experience-diy-dac-254.html#post2174307

http://myworld.ebay.ca/snow48_6/

 

[Ryssen]

Yes I have those on my board to,I just loocked at the schema....I messauerd 3,3v on them on my board.So if you have removed the old regs,that would be the point to connect the new one..

 

[McCrackers]

Yes I have those on my board to,I just loocked at the schema....I messauerd 3,3v on them on my board.So if you have removed the old regs,that would be the point to connect the new one..

That brings me back to my previous question - If you connect input to the lytics on the left and output to the FBs aren't bypassing the the lytics on the right?

 

[Ryssen]

The FBs are connected to the e-lyts to the right if thats what you mean.

 

[Ryssen]

Just like to tell that Gigawork on ebay sells the DIR9001 for 30$,just ordered one..

 

[piero7]

Just like to tell that Gigawork on ebay sells the DIR9001 for 30$,just ordered one..

raindrop sell dir9001 for 20$

 

[Ryssen]

Is he on ebay to?The 30$ was with free shipping to me, so it might be the same in the end.

 

[McCrackers]

Report back how its going..

It's working fine now. For some reason it wasn't working with output going to lytics like with 5V regs. I was getting 0V at chip.
Finally tried Bill's suggestion with output to FBs and bingo.

 

[Bill Fuss]

That's good news, cant imagine why it wouldn't work going to the caps.

Anyone have a 4398 daughter board they don't need. My spare is toast.

 

[McCrackers]

I don't know either. Maybe it was something else that I overlooked.
I'll check I might be able to dig up a spare 4398 somewhere.

 

[stokessd]

The cs4398 is like $10 at digikey. As of last week they had plenty in stock.

 

[Bill Fuss]

I'm old and have terrible eyesight. I doubt that I could pull it off. It is an option, none the less though.

 

[jeffjazz]

Is this what you need?
CS4398, CS4398-CZ, Soldered on SOIC-to-DIP Adapter PCB - eBay (item 110524920995 end time May-26-10 07:46:12 PDT)

 

[Bill Fuss]

Thanks Jeff, I'll see if the pinouts can work with the board we have.

 

[Ryssen]

It's working fine now. For some reason it wasn't working with output going to lytics like with 5V regs. I was getting 0V at chip.
Finally tried Bill's suggestion with output to FBs and bingo.

I am powering the 3,3v lines with a shunt regulator now,it´s working fine.
I did 2 feed them before the ferrite beds.Removed the old regs.