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

Class D Switching Power Amplifiers and Power D/A conversion

Alientek D8 with i2s?
Alientek D8 with i2s?
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 18th October 2017, 10:16 PM   #1
the hound of sound is offline the hound of sound
diyAudio Member
 
Join Date: Oct 2016
Default Alientek D8 with i2s?

hello folks
my Alien has arrived and been dismantled.
I read a suggestion that it might be possible to disconnect
one of the inputs to these digital amps and co-opt it's i2s
lines.

as luck would have it the usb input to this amp goes
directly to a daughter board with an xmos chip and helpfully
labels its output pins!
they are GND, SPD, MCLK, SCLK & SDIN.
perusing the i2s spec it would seem reasonable to postulate that
SCLK is SCK and SDIN is SD (serial data).
which leaves SPD and MCLK as candidates for word select WS.
would anyone like to hazard an opinion as to whether it would be
electrically safe to try both?
is it even reasonable to assume the output of this daughter board
is i2s?!

it doesn't look possible to trace the lines to the STA326 chip - having only ever tried my hand once at making a simple pcb I imagine modern fabrication has hidden the lines in an internal
layer.
  Reply With Quote
Old 19th October 2017, 06:23 PM   #2
the hound of sound is offline the hound of sound
diyAudio Member
 
Join Date: Oct 2016
my bad - there were six lines in fact and the one I missed out
was LRCK. aka word select. sorted.

but the mysterious SPD.... anyone seen that acronym before?
  Reply With Quote

Reply


Alientek D8 with i2s?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FDA: Alientek D8 jean-paul Class D 64 22nd September 2019 04:00 PM


New To Site? Need Help?

All times are GMT. The time now is 09:01 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