Signalyst DSC1

[adiaz]

Is it essential to remove the crystals for slave mode on the xing?

 

[jeroen_d]

Yes, because the Xing cannot work in slave mode with the firmware that comes with it. It differs from Amanero in that. The DAC works with its own clock. It is an asynchronous connection. You can not let two clocks interfere.

 

[adiaz]

Ok, thanks!

 

[jeroen_d]

I am very content with how the DSD'it sounds but I have a problem when feeding DSD from HQPlayer. PCM from HQPlayer works perfect. But with DSD I get a very strong, audible noise floor. I will have to dig into this further. Maybe one of you can help. The DSD'it board 5V is coming from the Beaglebone power supply.

This problem it not new. Someone else is experiencing the exact same thing, but then not in combination with Xing U30 but with Beaglebone. See this post: https://www.diyaudio.com/community/threads/simple-dsd-src-for-beaglebone.358147/post-7345755

 

[Yasioo]

Hi everyone, I just finished DSC 2.6.2 and i have a noise from left channel .. some advaise?

 

[jeroen_d]

check al connections. if they are all good, then one of the input IC's broke down.

 

[savan]

Hi everyone, I just finished DSC 2.6.2 and i have a noise from left channel .. some advaise?

DSC have clasic pin to pin connection which is a bad design, I had that isues with CT7302PL which is in relation to pin to pin connection, solved all isues by replacing pin to pin with u-fl to u-fl , so fully coahial connection is need!!!

 

[ghitus]

Hi guys, which one of these input board should I prefer for DSC 2.6.2?

https://a.aliexpress.com/_EHaW71t
or
https://a.aliexpress.com/_Ez3wU1d

Thank you,

Gaetano.

 

[savan]

whatever you decide will be good, but if you had to choose, you would buy link no.2 picture 3 definitely. Even in my opinion link no.2 picture 2 is better than link no.1

 

[Yasioo]

Thanks guys I will check connections on the board, meanwile I build 3 of them I will check others

P.s All ic from mouser and farnell

 

[jeroen_d]

Hi guys, which one of these input board should I prefer for DSC 2.6.2?

https://a.aliexpress.com/_EHaW71t
or
https://a.aliexpress.com/_Ez3wU1d

Thank you,

Gaetano.

Both are not worth dsc 2.6.2 quality. Use Xing U30 to make your 2.6.2 really shine. https://nl.aliexpress.com/item/1005002676272661.html

 

[ghitus]

Thank you Jeroen, really awesome! Does it need a dedicated regulated PSU?

Gaetano.

 

[jeroen_d]

Not perse. If your streamer has a good power supply it is already very good on USB power. It has 3 separate onboard low noise power supplies for the clpd, cpu and clocks.

 

[ghitus]

I should use it with a i3 NUC using Daphile. By the way, how does the DSC go with Daphile? I would use it to obtain the DSD streaming...

Gaetano.

 

[jeroen_d]

Very good. Geosto is doing this.

With respect to power supply when using the standard NUC adapter, the Xing U30 could benefit a bit from having its own power supply. E.g. this one https://nl.aliexpress.com/item/1005....0.0.1a1c61d7SzUPfK&mp=1&gatewayAdapt=glo2nld

 

[ghitus]

Which is the feeding voltage of the xing U30?

 

[jeroen_d]

Same as USB 5V

 

[jeroen_d]

 

[savan]

I would look for an paraleled LT3045 regulator for booth DSC and U30, one with no external pnp and with absolut 4.7uF as their output capacitor, more info -> https://www.diyaudio.com/community/...ow-noise-vref-the-gled431.285346/post-4589769

The LT3042 wants its 4.7uF output capacitor to have just that value. Departing
in either direction creates noise peaks at high frequencies, but still with an absolute
value the others can only dream about.

 

[jeroen_d]

View attachment 1204000

In the picture you can see that L1 has been removed and that a jumper has been added. There I still use USB power. But if you remove the jumper connection you can give 5V to the right pin. And connect ground to the groundplane, just find a suitable spot.