Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Signalyst DSC1
Signalyst DSC1
Signalyst DSC1 Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 8th March 2018, 12:01 AM   #601
kuribo is offline kuribo
diyAudio Member
 
Join Date: Jan 2002
Ability to chain these together for a 4 way active system would be nice....
  Reply With Quote
Old 8th March 2018, 12:15 AM   #602
Lo_Tse is offline Lo_Tse  Canada
diyAudio Member
 
Join Date: Dec 2006
Quote:
Originally Posted by ppy View Post
Thank you. The period of tests, the search for the optimal design and components is complete.
I'm working on the final release. But I would like to hear from everyone who is interested in DSC - How do you want to see it?
Before the final release, I am ready to discuss your proposals.
Pavel,

Congratulation!! Job well done. I just saw on CA that you have solved the problem with XMOS too.

I think the board should be "as general and as simple" as possible such that it would appeal to a large group of DYers. Different people want to hook it up differently e.g. output stages, isolated/unisolated USB to IIS etc. The originally idea of Signalyst for the DSC 1 was an open design and people can make whatever changes as see fits. I personally like the transformer output stage that you implemented earlier, simple and effective. My 2 cents. I am sure other people will have different views.

Regards,
  Reply With Quote
Old 8th March 2018, 03:18 AM   #603
luchoh is offline luchoh  United States
diyAudio Member
 
Join Date: Jan 2006
Location: Florida
Signalyst DSC1
Default BBB/Hermes/Cronus Success

Quote:
Originally Posted by ppy View Post
barrows luchoh, thank you. I will review your suggestions and answer later.


Can this solution help you?
The DSC1 DAC as a way to understand how a simple DSD DAC actually works - Page 4 - DAC - Digital to Analog Conversion - Computer Audiophile
It is enough to replace two inverters with 74LVC1G04 at 74LVC1G34.
In the final version, this will be fixed.
@ppy: hats off to you! That was it.
Perhaps I'lll look into replacing the inverters. Especially if it would work with the rest of the DACs I have.

The good news: I realized that BBB Botic driver has the option to invert the phase. So I connected my BBB->Hermes->Cronus -> BCK.DSDL/DSDR ->DSC2.6 and pin 10 to pin7 to provide DSDEN. Same noise as before.
Then I changed
Code:
/sys/module/snd_soc_botic/parameters/dai_format
contents from the default 16385 to 17409.

Boom! Perfect sound. There are of course pops from the DSD start as the mute is not operational, but I'll deal with this later - for now I'm quite happy.

Thank you Pavel for your help and continuing support!

Last edited by luchoh; 8th March 2018 at 03:25 AM.
  Reply With Quote
Old 8th March 2018, 05:35 AM   #604
ppy is offline ppy  Russian Federation
diyAudio Member
 
ppy's Avatar
 
Join Date: Aug 2015
Location: Russia
Quote:
Originally Posted by Lo_Tse View Post
I think the board should be "as general and as simple" as possible such that it would appeal to a large group of DYers. Different people want to hook it up differently e.g. output stages, isolated/unisolated USB to IIS etc. The originally idea of Signalyst for the DSC 1 was an open design and people can make whatever changes as see fits.
  1. The project will be licensed Open Hardware
    Full documentation and gerber for self-production will be available.
  2. The official name will be DSC2. I agreed this name with the author of DSC1.
  3. The output PCB will be replaceable as in v2.5. There will be places for installing transformers from different manufacturers. But while those Chinese transformers that I installed, I like the most in sound.
  4. The list will be supplemented .....

Dear friends, thank you for helping make the project convenient for everyone. I will comment on your wishes. I have a definite opinion after a large number of tests.
  Reply With Quote
Old 8th March 2018, 06:24 AM   #605
mcluxun is online now mcluxun  United States
diyAudio Member
 
Join Date: Nov 2010
Quote:
Originally Posted by ppy View Post
  1. The project will be licensed Open Hardware
    Full documentation and gerber for self-production will be available.
  2. The official name will be DSC2. I agreed this name with the author of DSC1.
  3. The output PCB will be replaceable as in v2.5. There will be places for installing transformers from different manufacturers. But while those Chinese transformers that I installed, I like the most in sound.
  4. The list will be supplemented .....

Dear friends, thank you for helping make the project convenient for everyone. I will comment on your wishes. I have a definite opinion after a large number of tests.
Great news thanks ppy
  Reply With Quote
Old 8th March 2018, 07:02 AM   #606
nautibuoy is online now nautibuoy  United Kingdom
diyAudio Member
 
nautibuoy's Avatar
 
Join Date: Jan 2010
Location: Somerset, England
Quote:
Originally Posted by barrows View Post
I believe DSC style designs require the DSDON and MUTE signals from the Amanero, since the TPA Hermes/Cronus has no provisions for those signals it will not work.
I'm working on a PCB that is essentially a TPA Hermes Amanero but with isolated outputs for DSDON and Mute. There's a little more to it as TPA Hermes/Cronus repurposes the Amanero Mute output for clock select but I believe that's solvable.

Happy to share when I polish off the initial board layout.

Last edited by nautibuoy; 8th March 2018 at 07:06 AM.
  Reply With Quote
Old 8th March 2018, 01:10 PM   #607
Lo_Tse is offline Lo_Tse  Canada
diyAudio Member
 
Join Date: Dec 2006
Quote:
Originally Posted by ppy View Post
  1. The project will be licensed Open Hardware
    Full documentation and gerber for self-production will be available.
  2. The official name will be DSC2. I agreed this name with the author of DSC1.
  3. The output PCB will be replaceable as in v2.5. There will be places for installing transformers from different manufacturers. But while those Chinese transformers that I installed, I like the most in sound.
  4. The list will be supplemented .....

Dear friends, thank you for helping make the project convenient for everyone. I will comment on your wishes. I have a definite opinion after a large number of tests.
Thank you for all your effort! Looking forward to your comments.

Regards,
  Reply With Quote
Old 8th March 2018, 01:36 PM   #608
TNT is offline TNT  Sweden
diyAudio Member
 
Join Date: Apr 2003
Location: Sweden
Quote:
Originally Posted by barrows View Post
Pavel: I wish for isolation between USB interface and DSC. Also, I would prefer the USB interface operated in slave mode, and the DAC PCB had a (better) XO on board, with a dedicated low noise LDO (LT-3045, etc). Then the clock could go back to USB interface through the isolators.
Also I would like to see pretty good current drive out of this, to drive amp input stages directly (or perhaps passive attenuators for some) as HQPlayer can control level, and very soon it appears more DSD capable VC are coming to other software players. Also at least 3.0 V out for 0dB signals.
I might like pre-mounted ICs as well, soldering SMD resistors by hand is no problem, but the ICs can be a little tricky for me.
+1
__________________
More distortion to the people!
  Reply With Quote
Old 8th March 2018, 07:00 PM   #609
nautibuoy is online now nautibuoy  United Kingdom
diyAudio Member
 
nautibuoy's Avatar
 
Join Date: Jan 2010
Location: Somerset, England
This is the PCB I'm working on - as yet unfinished as I have to sort out the power supplies to the isolators and it needs a careful check but you should get the idea.

The aim is to use a TPA cronus for clocking so the board is essentially a variant of the TPA Hermes but with the additional (isolated) connections for Mute and DSDon.

Click the image to open in full size.

Last edited by nautibuoy; 8th March 2018 at 07:02 PM.
  Reply With Quote
Old 8th March 2018, 08:08 PM   #610
a333bt is offline a333bt  Slovenia
diyAudio Member
 
Join Date: Jun 2004
Location: Vodice
Quote:
Originally Posted by Lo_Tse View Post
Pavel,

Congratulation!! Job well done. I just saw on CA that you have solved the problem with XMOS too.

I think the board should be "as general and as simple" as possible such that it would appeal to a large group of DYers. Different people want to hook it up differently e.g. output stages, isolated/unisolated USB to IIS etc. The originally idea of Signalyst for the DSC 1 was an open design and people can make whatever changes as see fits. I personally like the transformer output stage that you implemented earlier, simple and effective. My 2 cents. I am sure other people will have different views.

Regards,
1+
  Reply With Quote

Reply


Signalyst DSC1Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


New To Site? Need Help?

All times are GMT. The time now is 07:28 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki