AC3 decoder IC? - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

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 December 2006, 07:18 PM   #1
ROBSCIX is offline ROBSCIX  Canada
diyAudio Member
 
Join Date: Oct 2004
Default AC3 decoder IC?

Hello, do you guys know of any good decoder IC's that accpet AC and/OR DTS and decode to discrete outputs. I would like to try and build a DAC for surround. Thx for any help you can give me thx..
BTW, I have lloked for some info on this topic but doesn't seem to be very much of it..thx for any help or info you can give
  Reply With Quote
Old 21st December 2006, 07:21 PM   #2
TNT is online now TNT  Sweden
diyAudio Member
 
TNT's Avatar
 
Join Date: Apr 2003
Location: Sweden
http://www.diyaudio.com/forums/showt...468#post667468

sorry
  Reply With Quote
Old 21st December 2006, 07:30 PM   #3
ROBSCIX is offline ROBSCIX  Canada
diyAudio Member
 
Join Date: Oct 2004
I was wondering about that. Licensing and such so getting a IC without building a few thousand units is probably a no go huh?
so a DIY surround sound DAC is out of the question?
  Reply With Quote
Old 21st December 2006, 08:47 PM   #4
diyAudio Member
 
theAnonymous1's Avatar
 
Join Date: Feb 2004
Location: Anonymityville
I have two DSP boards out of a motorola receiver that each contain a CS493263.

http://www.cirrus.com/en/pubs/proDat...CS493xx_F7.pdf

If you have the capability to desolder surface mount IC's you can have the boards, no charge.

Pic of the board......

http://i13.tinypic.com/2cdaf6b.jpg
  Reply With Quote
Old 21st December 2006, 09:12 PM   #5
ROBSCIX is offline ROBSCIX  Canada
diyAudio Member
 
Join Date: Oct 2004
These IC's are already programmed? I am not sure I should take them from you as I wouldn't want to take them if I can't use them. Is this why you have them? A guy said you could use a programmable DSP loaded with C code to do this....anybody have any ideas as to what type of DSP chip could hold and run "C" code? Does anybody know of the idea I am talking about?
I think the only way I could possibly get this idea off the ground is to find a chip and possibly proram it after I read and study up on the standard. Any help in this regard?
  Reply With Quote
Old 21st December 2006, 09:51 PM   #6
diyAudio Member
 
theAnonymous1's Avatar
 
Join Date: Feb 2004
Location: Anonymityville
Quote:
Originally posted by ROBSCIX
These IC's are already programmed? I am not sure I should take them from you as I wouldn't want to take them if I can't use them. Is this why you have them? A guy said you could use a programmable DSP loaded with C code to do this....anybody have any ideas as to what type of DSP chip could hold and run "C" code? Does anybody know of the idea I am talking about?
I think the only way I could possibly get this idea off the ground is to find a chip and possibly proram it after I read and study up on the standard. Any help in this regard?
All the info for the chip is in the link I provided.

I have no need for these boards; they came out of receivers that I stripped the amplifiers from.

If no one claims them they will eventually go in the garbage. If you want them all I ask for is shipping.
  Reply With Quote
Old 21st December 2006, 10:06 PM   #7
ROBSCIX is offline ROBSCIX  Canada
diyAudio Member
 
Join Date: Oct 2004
What I mean is I am not sure I can make use of them. Surface mount and all. I will let you know, I need to look over the Specs ok?
I need to understand what I am dealing with...
  Reply With Quote
Old 5th March 2007, 06:34 AM   #8
borg9 is offline borg9  Australia
diyAudio Member
 
Join Date: Jan 2007
I know this post is a bit late in the game concerning when the last post was made, but I am currenlty designing a home theater amp with works. toslink, spdif, ipod (fully controlled by remote) etc.

Enough of that, my point is im using the cirrus logic chips for my 5.1 decoding. a cs493263, cs8416 and some nordic i2s wireless modules for transmission.

I have aquired the chips required to do it, but i wanted to confirm some of my design ideas with an existing design. theAnonymous1, in your last post you have a motorolla board with these chips onboard. I just wanted to know what this boards original purpose was (eg, from a 5.1 HT amp) and if it were possible to get a few high res images of both sides of the board.

I realise by this time as your last post says it may be in the garbage, but any help you can provide is greatly appreciated.
  Reply With Quote
Old 6th March 2007, 06:34 AM   #9
borg9 is offline borg9  Australia
diyAudio Member
 
Join Date: Jan 2007
Well, it seems that there are some companies that are not as reliable as they claim... My deal has fallen through with my supplier. Not a good thing.

Once again, probably a bit late in the game but theAnonymous1, would you happen to have another one of the motrola boards laying around? if so, is there any change buying it off you, and of course, paying for it to be shipped to aus.

Thanks
  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
DIY 5.1 decoder pixie Digital Source 47 14th November 2011 05:32 PM
5.1 decoder soundNERD Digital Source 82 22nd September 2011 07:52 PM
DTS decoder on PC george a Everything Else 5 10th May 2006 01:17 PM
DIY DTS decoder Jared Digital Source 18 25th June 2003 07:26 PM
MP3 decoder Diogo Parts 0 23rd August 2002 03:18 PM


New To Site? Need Help?

All times are GMT. The time now is 08:44 PM.


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