my PCM1798DAC!!!

[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...

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.

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

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]

ha ha

!

 

[sky0841]

PCM1798DAC,PCB

top routing

 

[sky0841]

BOTTM ROUTING

BOTTM ROUTING

 

[sky0841]

silkscreen top

silkscreen top

 

[Adams_Leo]

hi, sky0841,good jod

 

[jobstens]

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.

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]

Rakk Dac Kit

The RAKK DAC kit can be ordered here http://www.kandkaudio.com

Cheers / Rich.

 

[freemusicboy]

i wei

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

 

[machinow]

Output

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