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my PCM1798DAC!!! - Click HERE for Original Thread
sky0841
myPCM1798DAC,
Nisbeth
Where?:xeye:


/U.
Elso Kwak
quote:
Originally posted by Nisbeth
Where?:xeye:


/U.

Link does not work (404 Error)
:bawling:
digi01
Hi Nisbeth;) what about my mini tube PCB boards?

help sky0841 upload him projects.
digi01
:hot: second
X.G.
quote:
Originally posted by Elso Kwak


Link does not work (404 Error)
:bawling:

Don't cry:D. .....Cause only the member of the Chinese forum can view the posts.

let me try to paste the Pics of the PCM1798 DAC in that forum.;)
sky0841
!
X.G.
quote:
Originally posted by digi01
Hi Nisbeth;) what about my mini tube PCB boards?

help sky0841 upload him projects.


oh....

we are doing the same work;)
sky0841
(xiao gui to?)


Still there is slice of more diagrams to treat to up spread
Bas Horneman
Hallo sky0841,

Welcome to this forum!

How does your DAC sound?

I also have a DAC based on the PCM1794 and will listen to it soon...I hope.

Regards,
Bas
sky0841
Invite DIGI01 brothers to help me to say
I do not understand English
digi01
thanks for sky0841 share his projects,this is the dac sch file.pdf version.
the dac based on the cs8414 and pcm1798 chips,use class a power supply.audio grade parts.the sound is fine,clear and nature.
Bas Horneman
It seems to me..that the PDF has been censored by the Chinese Government...because it is empty?;)

Regards,
Bas
digi01
Bas Horneman,I use adobe acrobat 5.0 pdfwriter print the protel sch file in pdf.I can see all parts.try update you software versions.

kind regards
-digi
Bas Horneman
I have version 6....will try 5.

[edit] Just tried it with 5...I get an error..say I have to install Chinese Language Support Package. Will try to download that.

Regards,
Bas
Bas Horneman
Just so that you don't have to install 10mb of Chinese language support for acrobat here are pics of schematics in pdf.
Bas Horneman
..
digi01
thank you Bas Horneman.wish your PCM1794 DAC born soon:")

hearty cheers
-digi
Nisbeth
Thanks Bas! :)

Sky0841: Nice project, can we see the PCB layout as well?


/U.


PS: Digi01, I am afraid it'll be a while before I get around to building the MJ but the boards sure make it easier:D
Bas Horneman
.
capslock
Bas, do you have 1-2 extra 1794 you'd want to sell? They've never been available as samples, and I'd hate to order from Digikey for just this item.

Have you already designed a PCB? I have made a .brd file for AD1854 with an on board ECL master clock that I can send you. The design can be changed to PCM1974 quite easily, just exchange a couple of connections, leave out the I/V convertors and drop in another regulator.


Regards,

Eric
Bas Horneman
Hallo Eric,

I'm sorry I "misled"...you

I got the RAKK DAC kit...







Have not listened to it yet...can you believe it? Battery psu.

Don't have cd player at the moment. (Might try my dvd player tonight)

Cheers,
Bas
meta
Hey sky0841

Nice work :)

Can u confirm that these pins are left floating for ur 1798 dac:

DEM, MUTE, ZERO


Cheers
sky0841
!
sky0841
top routing
sky0841
BOTTM ROUTING
sky0841
silkscreen top
Adams_Leo
hi, sky0841,good jod
jobstens
quote:
Originally posted by digi01
thanks for sky0841 share his projects,this is the dac sch file.pdf version.
the dac based on the cs8414 and pcm1798 chips,use class a power supply.audio grade parts.the sound is fine,clear and nature.

quote:
Originally posted by Bas Horneman
It seems to me..that the PDF has been censored by the Chinese Government...because it is empty?;)

Regards,
Bas


converted with xpdf & ps2pdf now it should work ...


Regards

Jobstens
emuman100
Is there really a need for all that capacitance in the power supply? I think we are definately going a bit overboard. My power supply for my DAC uses LM317 and LM337 with the capacitance reccomended in their datasheets. Sounds excellent.
emuman100
BTW, your DAC looks really damn good. I really want to make use of these PCM1716's I have here. Where does one purchase a RAKK DAC kit? This DAC kit seems to be very very cool to assemble and use, but a full kit at $245USD is out of my spending range, despite how cheap it is. I am still happy with the DAC I built designed by jwb. I love that damn thing. :)
richv
The RAKK DAC kit can be ordered here http://www.kandkaudio.com

Cheers / Rich.
freemusicboy
i will get the DAC soon .but in guangdon China

what a happy time!!!!
digi01
optimize ver#3 pic view:) the board size is 180mm*200mm

btw,xiaolong=sky0841


yours digi:D
machinow
I think that adding 10-100 ohms output resistance /after the opamp OPA627/ is necessary and will give great advantages for the stability of the OPAMP OPA627, in spite of the output interconnect. I would never forget such output resistor!
Regards
peranders
digi01, please get in contact with me. Your email doesn't seems to be working.

(The thing I wanted to tell you was to fix your code for the Gainclone webring The ring itself is here)
digi01
thank you peranders,because my site shift DNS lately.
I will contact you by mail;)


regards
-digi
xiaolong
If my English is very good,
I can face the friends introduction once this DAC
Mess of is, my English is badly,
The DIGI01 is my friend, and let him help me to introduce
chillysalsa
does anyone have info on where to buy the boards for the 1798 DAC pictured above?

The silkscreen says - www.ngtop.com, that is all in chinese so no help to me...

Any info appreciated!
digi01
the board is not available.

I have 1PCB left.drop me a mail,if you are still interested:)

Z
kimschips
To Sky0841

How do you connect a toslink or a coax to your Dac?

Is it possible to replace PCM1798 with PCM1794 and how can I connect a external clock?

What about using cs8416 instead off cs8414 for use with DVD audio?

Thanks
Kim

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