Amanero Isolator/Reclocker GB - Page 45 - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

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 15th March 2013, 04:50 AM   #441
Account disabled at member's request
 
Join Date: Aug 2007
Acko - how about filling the uinused vias with solder - what dya think ?

For mkii, it'd be cool to add routing + pads for a 5x7 xo for rclk, and routing + pads for adp151 on the input side to allow 5v input. This'd make it more suitable for a wide range of DACs.

I'll be hoping to find time to test this next week - got 3 different isos - adum3440, iso7240 and NVE 715 to try, and 3 different xo's - 100 and 125 fox and 150 saw. Just too busy these days.

Anyone got theirs up and running yet ?
  Reply With Quote
Old 15th March 2013, 05:48 AM   #442
diyAudio Member
 
Join Date: Jul 2005
Location: North IL
Got my boards today! Gotta dust off the lighted magnifier.... Thanks Acko!
  Reply With Quote
Old 15th March 2013, 08:52 AM   #443
acko is offline acko  Australia
diyAudio Member
 
Join Date: Jan 2008
Location: Sydney, Australia
Quote:
Originally Posted by KlipschKid View Post
Acko - how about filling the uinused vias with solder - what dya think ?
The layout is such that the currents circulate mainly on the top gnd plane (as the IC pins) and returns to power gnd on the top side. The bottom ground plane acts more like a shield, stitched with vias to the top gnd plane-all for HF performance. So I am not sure if you would get any further benefits in solder linking the vias but no harm doing so.


Quote:
Originally Posted by KlipschKid View Post
For mkii, it'd be cool to add routing + pads for a 5x7 xo for rclk, and routing + pads for adp151 on the input side to allow 5v input. This'd make it more suitable for a wide range of DACs.
Will consider... added to wishlist
__________________
AckoDAC Project
  Reply With Quote
Old 15th March 2013, 09:30 AM   #444
palmito is offline palmito  United States
diyAudio Member
 
palmito's Avatar
 
Join Date: Dec 2010
Location: Florida,US
Default Got mine

My board arrived yesterday. Thanks much.
  Reply With Quote
Old 17th March 2013, 09:20 PM   #445
DQ828 is offline DQ828  Australia
diyAudio Member
 
DQ828's Avatar
 
Join Date: Mar 2010
Location: Lake Macquarie, East Coast Australia
Thanks for the answers on the FST3257G
  Reply With Quote
Old 18th March 2013, 12:27 AM   #446
diyAudio Member
 
Join Date: Feb 2009
Location: Brisbane, Australia
Mine arrived today I think mine nearly spent a week in my work's internal mail system

Thanks Acko!
  Reply With Quote
Old 18th March 2013, 11:04 AM   #447
shoom is offline shoom  Europe
diyAudio Member
 
Join Date: Jul 2010
Location: Worcestershire
Hi Acko
My board arrived safely this morning.
Great work
Thanks
  Reply With Quote
Old 20th March 2013, 03:01 AM   #448
diyAudio Member
 
Join Date: Oct 2007
Location: Hong Kong
Hi Acko,

Can i still get 1 PCB? Shipping options?

Many Thanks
  Reply With Quote
Old 20th March 2013, 11:03 AM   #449
acko is offline acko  Australia
diyAudio Member
 
Join Date: Jan 2008
Location: Sydney, Australia
Quote:
Originally Posted by acko View Post
Yes, RCK is the reference clock for the flip-flop. The quality of the regenerated output signals depend on this clock and also how cleanly the flip-flops switch. If you skimp on these the overall SQ may not be up to expectations.

RCK can be from a separate clock or tied to DAC MCLK. When used separately RCK is async w.r.t to the audio signals (I2S/DSD) and actually modulates the pulse width of the signals if you look at the timing/switching carefully. To minimize the effects RCK should be running higher that the max Fs, higher the better accuracy of the outputs. e.g. for 24.576MHz of typical transport clock, we are looking at ~50MHz minimum. 100MHz even better. Of course you could go higher if the Flip-flops can take it. The S01 ~200Mhz max but the PotatoChip version (S02) can be fried up to 600MHz! If also appears that XOs have better stability and lower phase noise at higher freqs and also there are some discussions on this SAW technology being better? ..

More App Notes ...
Attached Files
File Type: pdf App Notes - Sync Mode.pdf (36.7 KB, 191 views)
File Type: pdf App Notes - ASync Mode.pdf (35.9 KB, 166 views)
File Type: pdf App Notes - PSync Mode.pdf (24.9 KB, 168 views)
__________________
AckoDAC Project
  Reply With Quote
Old 20th March 2013, 11:10 AM   #450
acko is offline acko  Australia
diyAudio Member
 
Join Date: Jan 2008
Location: Sydney, Australia
Quote:
Originally Posted by bertchai View Post
Hi Acko,

Can i still get 1 PCB? Shipping options?

Many Thanks
Unfortunately the current batch is all sold out. But you can add your details to the waiting list for the next batch here...
__________________
AckoDAC Project
  Reply With Quote

Reply


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
DQ DAC 2, BIII SE, Tube-I-Zator, Arduino, Amanero Build DQ828 Digital Line Level 94 28th December 2013 09:29 PM
FS: F5X GB chassis and all GB parts Studley Swap Meet 6 21st May 2013 11:47 AM
Amanero 384 with Kernel Streaming/Wasapi win764bit stamatiski Digital Source 9 18th November 2012 02:23 AM
Conrad Heatsinks GB in GB/EU bremen nacht Parts 1 1st February 2006 08:48 PM


New To Site? Need Help?

All times are GMT. The time now is 09:00 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2