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
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 21st September 2019, 05:36 AM   #1551
nautibuoy is offline nautibuoy  United Kingdom
diyAudio Member
 
nautibuoy's Avatar
 
Join Date: Jan 2010
Location: Somerset, England
Quote:
Originally Posted by nautibuoy View Post
do you have a mechanical drawing of your isolator/reclocker board available? I particularly need to know the position of pin 1 of the output header in relation to pin 1 of the BBB P9 header.
I think I've managed to obtain the relative positions of the pins by opening ppy's gerbers in the free (for non-commercial use) GerberLogix tool (the installed version not the on-line gerber viewer) and using its 'centre to centre' measurement tool. From that I can work out the BBB mounting hole positions. I'll finish off and check the measurements later but if it works out I'll have a suitable mechanical drawing.
  Reply With Quote
Old 21st September 2019, 09:55 AM   #1552
Zoran is offline Zoran  Serbia
diyAudio Member
 
Join Date: Jan 2004
Location: Belgrade
Quote:
Originally Posted by gionag View Post
Made a simple but effective PSU for the DSC2.

CRC for the reclock (13200uf + 0.5ohm + 13200uf)
CRC for the analog output (13200uf + 0.5ohm + 13200uf)
5v Regulated for BBG (18800u + LM1084-5.0)

works like a charm.

Sound wise, to me, appear to sound as good as other more exotic solution.
so maybe. if someone needs a valid and quick psu this arrangement is worth a shot.

If someone trust me enough on that i can share pcbs or gerber.
Yes.
But is there any reason not to use CLC against resistor component?
__________________
###
  Reply With Quote
Old 21st September 2019, 11:47 AM   #1553
gionag is offline gionag  Italy
diyAudio Member
 
Join Date: Jun 2007
Quote:
Originally Posted by Zoran View Post
Yes.
But is there any reason not to use CLC against resistor component?
i have thought that is already enough this way.
cheaper, quicker.
from simulation the clc is slightly better... but in the end, this board already has loacal regulators on-board with very high PSRR.

My concern was just to give the lower impedance source possibile rather to reducing ripple. (While containing costs).
  Reply With Quote
Old 21st September 2019, 11:58 AM   #1554
lindamar is offline lindamar  Spain
diyAudio Member
 
lindamar's Avatar
 
Join Date: Jan 2008
Location: SPAIN / ESPAÑA (European Union)
Quote:
Originally Posted by gionag View Post
Made a simple but effective PSU for the DSC2.

CRC for the reclock (13200uf + 0.5ohm + 13200uf)
CRC for the analog output (13200uf + 0.5ohm + 13200uf)
5v Regulated for BBG (18800u + LM1084-5.0)

works like a charm.

Sound wise, to me, appear to sound as good as other more exotic solution.
so maybe. if someone needs a valid and quick psu this arrangement is worth a shot.

If someone trust me enough on that i can share pcbs or gerber.
In Gionag we trust

In you don’t mind to share...I’d be interested (pcb and/or gerber)

Cheers,
Pepe
  Reply With Quote
Old 21st September 2019, 12:06 PM   #1555
gionag is offline gionag  Italy
diyAudio Member
 
Join Date: Jun 2007
Quote:
Originally Posted by lindamar View Post
In Gionag we trust
Please, don't
  Reply With Quote
Old 21st September 2019, 04:25 PM   #1556
randytsuch is offline randytsuch
diyAudio Member
 
Join Date: Jan 2003
Location: LA
Quote:
Originally Posted by nautibuoy View Post
I think I've managed to obtain the relative positions of the pins by opening ppy's gerbers in the free (for non-commercial use) GerberLogix tool (the installed version not the on-line gerber viewer) and using its 'centre to centre' measurement tool. From that I can work out the BBB mounting hole positions. I'll finish off and check the measurements later but if it works out I'll have a suitable mechanical drawing.
The interface connectors used on Pi's and BB boards will be a tenth of an inch apart or 0.1 inch.
__________________
My system is here
http://randytsuch-audio.blogspot.com/2005/10/my-system.html
  Reply With Quote
Old 21st September 2019, 05:38 PM   #1557
nautibuoy is offline nautibuoy  United Kingdom
diyAudio Member
 
nautibuoy's Avatar
 
Join Date: Jan 2010
Location: Somerset, England
Quote:
Originally Posted by randytsuch View Post
The interface connectors used on Pi's and BB boards will be a tenth of an inch apart or 0.1 inch.
Yes, that's a given - it's the relative position of pin1 of the reclocker output header I needed. I plan to stack the reclocker/BBB compo under a DAC board so needed to deduce the position of the holes for the different board stand-offs. All done and checked now though.
  Reply With Quote
Old Yesterday, 07:36 AM   #1558
Zoran is offline Zoran  Serbia
diyAudio Member
 
Join Date: Jan 2004
Location: Belgrade
Quote:
Originally Posted by gionag View Post
i have thought that is already enough this way.
cheaper, quicker.
from simulation the clc is slightly better... but in the end, this board already has loacal regulators on-board with very high PSRR.

My concern was just to give the lower impedance source possibile rather to reducing ripple. (While containing costs).
Maybe to try some shunt end with say additional 120% of consumption?
I have similar experiences with no-feedback, simple, old-school power supplies. Somehow sounds better?
__________________
###
  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 05:48 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki