[ezkcdude]

Quote:

Originally Posted by multibit16 /img/forum/go_quote.gif Crystal arrived this morning Its now fitted, as soon as BNC plug is connected for the spdif that offset is gone, both channels now measure 0.1/0.2mV DC. Dac is currently running in, so far the sound is quite good. BTW I built the PCM1794 version

Sweet! You're the first guy besides myself to have actually completed a working version of the ezdac! Congratulations!

Did you use AD1896 or SRC4192? Also, what op amps? Also, if you get a chance, can you send me a higher resolution pic? I'd like to post it on my website.

 

[multibit16]

I used the AD1896, next thing I want to do is change the AD8610 op-amps to THS4031. try some different spdif input coupling caps.

I'll send you a picture although you'll have to excuse the poor quality of my camera

I'll also send another picture once its been put in a case

 

[multibit16]

In its temp case

Any luck with yours yet jürgen?

 

[t52]

Quote:

Originally Posted by multibit16 /img/forum/go_quote.gif Any luck with yours yet jürgen?

nope, i couldn't source 0805 100r resistors locally, conrad just had 1206 ones which i have in stock anyway. so i will have to wait until i place an order somewhere :/

 

[ezkcdude]

Quote:

Originally Posted by t52 /img/forum/go_quote.gif nope, i couldn't source 0805 100r resistors locally, conrad just had 1206 ones which i have in stock anyway. so i will have to wait until i place an order somewhere :/

Do you have any 0805 resistors? Some other values besides 100R could work. Anything close really.

 

[t52]

Quote:

Originally Posted by ezkcdude /img/forum/go_quote.gif Do you have any 0805 resistors? Some other values besides 100R could work. Anything close really.

no, actually i don't have any 0805 resistors, because i use 1206 where possible out of convenience reasons... i tried to mount a 1206 sideways but it's still to big...

 

[Aguirre]

How does the ezdac compare to an AlienDac if they are both being fed from a computer over usb?

 

[ezkcdude]

Quote:

Originally Posted by Aguirre /img/forum/go_quote.gif How does the ezdac compare to an AlienDac if they are both being fed from a computer over usb?

The EZDAC is SPDIF only (for now, anyway). Maybe my next project should be to design the EZDAC with a USB interface (DIR9001?). Whaddyall think? Although, it wouldn't be able to run on computer power alone.

 

[multibit16]

Quote:

Originally Posted by t52 /img/forum/go_quote.gif nope, i couldn't source 0805 100r resistors locally, conrad just had 1206 ones which i have in stock anyway. so i will have to wait until i place an order somewhere :/

Hi jürgen,

I have a few 0.1% tol 100R Minimelf resistors spare, they are the 0102 size same as 0805, actually better than thick film 0805
If your struggling I can try and post you some FOC if you like

 

[multibit16]

Quote:

Originally Posted by ezkcdude /img/forum/go_quote.gif The EZDAC is SPDIF only (for now, anyway). Maybe my next project should be to design the EZDAC with a USB interface (DIR9001?). Whaddyall think? Although, it wouldn't be able to run on computer power alone.

I'm sure there would be interest in it Evan

may as well stick a headphone amp in there too

 

[t52]

Quote:

Originally Posted by ezkcdude /img/forum/go_quote.gif The EZDAC is SPDIF only (for now, anyway). Maybe my next project should be to design the EZDAC with a USB interface (DIR9001?). Whaddyall think? Although, it wouldn't be able to run on computer power alone.

afaik the dir9001 is NOT a usb receiver. for <=48kHz i'd recommend the pcm2707 in i2s mode.

 

[t52]

Quote:

Originally Posted by multibit16 /img/forum/go_quote.gif Hi jürgen, I have a few 0.1% tol 100R Minimelf resistors spare, they are the 0102 size same as 0805, actually better than thick film 0805 If your struggling I can try and post you some FOC if you like

that would be extremely cool as i don't plan to place an order soon. lately i source 99% of my components at my local electronics store... should i drop you a pm with my address?

 

[multibit16]

Quote:

Originally Posted by t52 /img/forum/go_quote.gif that would be extremely cool as i don't plan to place an order soon. lately i source 99% of my components at my local electronics store... should i drop you a pm with my address?

No problem jürgen

yes PM me your full name and address and I'll stick some in the post, how many do you need?
I may not be able to get to the Post office until saturday but will let you know as soon as I've posted them

 

[ezkcdude]

Quote:

Originally Posted by t52 /img/forum/go_quote.gif afaik the dir9001 is NOT a usb receiver. for <=48kHz i'd recommend the pcm2707 in i2s mode.

Yeah, you're right. I don't know why I thought it was

.

 

[ezkcdude]

Quote:

Originally Posted by t52 /img/forum/go_quote.gif i'd recommend the pcm2707 in i2s mode.

Yep, seems to be the way to go. Thanks, Juergen.