SSM2302 source - connection considerations - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 11th August 2008, 06:33 PM   #1
Atilla is offline Atilla  Norway
diyAudio Member
 
Join Date: Jul 2008
Default SSM2302 source - connection considerations

I've got an OLPC XO1 that I've been thinking to convert into a temporary music station, streaming music over wifi. Mostly because it's small and fun and second - because it looks like it would fite nicely in a DIY project. Also - since it has no mechanical parts or power supply on-board there's little interference from side components which makes it a decent source for computer music. (How good is the AD1888 that's used inside is another question)

Now, the output stage of the OLPC sound system is this little IC here:
http://www.autex.spb.ru/pdf/ssm2302.pdf

1.4W into an 8ohm load, not too bad THD and SNR for such a device, although the THR graph fluctuates a lot when it comes to output power.

Since I want to try it out as input for my chipamp.com LM3886 circuits, yet to be assembled, I was wondering if there's anything I should keep in mind, given that I don't have a preamp stage. I mean - since the SSM2302amp won't see this as an 8ohm load, I don't want to have it operating in a mode which will totally cripple the sound.

I'm a bit confused when it comes to matching input and output impedances of different stages yet, my analog circuits knowledge is quite rusty. It's been a while since high school where I got to play with that sort of things.
  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
PC as source and SPDIF connection to the external DAC jarthel Digital Line Level 1 4th June 2009 03:31 PM
X amp considerations DiMenSioN Pass Labs 26 30th May 2007 10:21 PM
More MTM Considerations DonoMan Multi-Way 5 3rd March 2005 06:29 PM
filament source connection to DHT metebalci Tubes / Valves 7 17th April 2004 10:18 AM


New To Site? Need Help?

All times are GMT. The time now is 06:58 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