OLD THREAD DAC End by Andrea Ciuffoli

[Ekkeri]

I've got something equivalent:
DA101C MURATA POWER SOLUTIONS Farnell code 1362398 $5.25

I don't think that it's equivalent..

Both are 1:1 transformers, but that's about it.. Still looking. Tried to contact SC, but they really isn't that helpful.

 

[Ekkeri]

Well, I looked it a bit closer and not sure anymore that it's worth the hassle. I think I will go for the S22083.

 

[apelizzo]

I don't think that it's equivalent..

Both are 1:1 transformers, but that's about it.. Still looking. Tried to contact SC, but they really isn't that helpful.

What specifications are you trying to meet with the transformer?
The Murata transformer has been designed for digital audio according to AES/EBU standards if I'm not wrong. In that sense it is equivalent, it does the same job and it fits on the board. Perhaps you are digging deeper into these transformers. Very interesting to know.
Please let me know.

 

[adamus]

google ' spdif murata da101c' and you will see a lot of people have used them for spdif transfer, but we shall have to see. They are pretty cheap so if they dont work well then we can always change. They conform to the required specs.

 

[quanghao]

Hi all!
Please, be advised that I will be on holiday for Chinese new year ( Tet of Vietnam) for 2 weeks from tomorrow. I will have limited access to internet. Therfore, there would be some delay to your questions or queries.
Happy New Year to all

http://www.fcvn.org/tet.htm

http://www.adoptvietnam.org/vietnamese/tet-hanoi.htm

 

[CustomHT]

Hi all!
Please, be advised that I will be on holiday for Chinese new year ( Tet of Vietnam) for 2 weeks from tomorrow. I will have limited access to internet. Therfore, there would be some delay to your questions or queries.
Happy New Year to all

Tet Vietnamese New Year

Tet, Vietnamese New Year in Hanoi

Any chance your able to post those PCB's I ordered before you go on holidays? would be a huge help..

Thanks

 

[quanghao]

Any chance your able to post those PCB's I ordered before you go on holidays? would be a huge help..

Thanks

I was sent all pCb at 28-1-2010, and some Member like it, I was sent!
tomorow, and to day... on week later I can Sent them because, the post office do not work!
Im very sorry! Please waite me!
thank you very much!

 

[CustomHT]

I was sent all pCb at 28-1-2010, and some Member like it, I was sent!
tomorow, and to day... on week later I can Sent them because, the post office do not work!
Im very sorry! Please waite me!
thank you very much!

Ok I'm a little confused..

So your saying those 2 pcb's I ordered yesterday wont be sent for 2 weeks?

 

[Jeffrey Davison]

Received the boards today ... THANKS!

JD

 

[fredlock]

Got mine too. Thanks Quanghao and audiodesign for sharing this project.

Now it's time to collect parts. I'm having a hard time finding a seller for the AD1865N-K. There's some sellers on ebay but I'm a bit in doubt if it's authentic. Any seller here in the US?

 

[erwincantona]

Received the boards today ... THANKS!

JD

Congratulation....
Mine hasn't arrived in Indonesia.

 

[NICKEL]

Ad1865n-k

Here's a US flea bay seller! - connectors_usa
Silk screening is unlike other images I've seen.
The seller is top rated though.

AD1865N-K AD1865 18bit Audio DAC upgrade Audionote IC - eBay (item 180465366327 end time Mar-06-10 01:50:05 PST)

I'll probably buy

 

[fredlock]

Thanks Nickel. I think I don't have any choice. I'll give it a shot.

Cheers,

Fred

 

[EUVL]

Why not get yourselves organised for a Group Buy from Digikey. Then you know for sure.

See:
http://www.diyaudio.com/forums/group-buys/136518-european-gb-ad1865nk-digikey.html

(Our is already closed successfully.)


Patrick

 

[defec]

Quanghao, I received my boards today also. They look fantastic. Thanks again.

 

[apelizzo]

Choke or Resistor

I noticed on BOM of DAC board, R1 to R7 is 10R or Choke 120uH

Why the choke was an option?

 

[hotzman]

Hi,
Which are preferred OS-CON? SA, SH or SP series?
47 uF/16V
- Farnell order code 9188673 SA series,
- Farnell order code 9189335 SH series,
- Farnell order code 1217615 SP series,
220 uF/10V
- Farnell order code 9189521 SA series,
- Farnell order code 9189289 SH series,
In data specification SP series is for audio aplications.
Thank you!

 

[apelizzo]

Hi,
Which are preferred OS-CON? SA, SH or SP series?
47 uF/16V
- Farnell order code 9188673 SA series,
- Farnell order code 9189335 SH series,
- Farnell order code 1217615 SP series,
220 uF/10V
- Farnell order code 9189521 SA series,
- Farnell order code 9189289 SH series,
In data specification SP series is for audio aplications.
Thank you!

I would say SP first, then SH and SA.

Unfortunately Farnell caps are very expensive

These are great for the 220uF position. 180uF is OK too
10pcs OSCON Sanyo OS-CON 180µF/20V - eBay (item 370326599813 end time Feb-26-10 08:01:42 PST)

or these:

http://cgi.ebay.com/8pcs-270uf-16v-...emQQptZLH_DefaultDomain_0?hash=item48395f48ec

For the 47uF these also are OK to use:
SANYO OSCON SA Series 47uF 16V 16SA47M (lot of 15) - eBay (item 150405820199 end time Feb-14-10 21:04:10 PST)

 

[hotzman]

Thank you Apelizzo!

 

[ernesternest]

Ad1865n-k

Hi,

I started a GB for the needed AD1865N-K from Digikey. If you are interested, please go to the GB: http://www.diyaudio.com/forums/group-buys/161225-onother-european-ad1865n-k-gb.html#post2084362

Regards Ernst