Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 2011, 02:02 PM   #1
diyAudio Member
 
enregistree's Avatar
 
Join Date: Dec 2010
Location: Prague
Default cirrus CS3511 current production Tripath

While Tripath ICs are still available, Tripath as company went bankrupt years ago so no longer develops new designs. Intellectual property has been sold to Cirrus and they finally used it and produced new IC, CS3511. It has been here for nearly two years, and specification looks like it is descendant of ta2020 and ta2024 but in 32L QFN (6 X 6 mm) package.

There are some changes like differential input, 4 gain settings and RI, RF resistors are now part of the chip,

The datasheet might be useful even for ta2020 designs as there is more info than in Tripath datasheets and I think most of it apply for tripath chips as well.

Why we don't hear much about this IC might be caused by availability of "old" tripath ICs in large quantity (or even being still produced). But new cirrus chip looks worth trying & is stocked by mouser and digikey. The latter has also evaluation board.

While ta2020 can be found mostly in budget gear, I see it's potential when driving high efficieny speakers or in smaller room systems. So does same apply for this cyrrus?
  Reply With Quote
Old 16th March 2011, 08:01 AM   #2
luka is offline luka  Slovenia
diyAudio Member
 
luka's Avatar
 
Join Date: Sep 2005
Location: in Slovenia :)
Send a message via Skype™ to luka
and why do you think this has anything from tripath? coz of the modulator or what?
__________________
home page @ http://www.classdaudio.tk/ @ 24/7 all year long
I FEEL SLOVENIA
  Reply With Quote
Old 16th March 2011, 11:42 AM   #3
diyAudio Member
 
enregistree's Avatar
 
Join Date: Dec 2010
Location: Prague
Quote:
Originally Posted by luka View Post
and why do you think this has anything from tripath? coz of the modulator or what?
Mainly because design features look so similar. Some portions of cirrus datasheet are actualy exact copy of tripath's.

Search for example "The frequency of the switching pattern is spread spectrum in nature and typically varies between 100kHz and 1MHz," and "is that it does not require large multi-pole filters to achieve excellent performance in listening tests." - cirrus p. 16, tripath TA2020 p. 11.
  Reply With Quote
Old 16th March 2011, 12:04 PM   #4
luka is offline luka  Slovenia
diyAudio Member
 
luka's Avatar
 
Join Date: Sep 2005
Location: in Slovenia :)
Send a message via Skype™ to luka
oh yes, this part make it the same for sure yes!
__________________
home page @ http://www.classdaudio.tk/ @ 24/7 all year long
I FEEL SLOVENIA
  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
Best current production 2a3 feket663 Tubes / Valves 6 9th May 2010 02:34 PM
best current production el34 katopis Tubes / Valves 7 7th June 2008 02:49 PM
List of current production types mashaffer Tubes / Valves 3 15th December 2007 05:20 PM
Current production EL34 Klimon Tubes / Valves 1 12th January 2007 07:54 PM
Current production rectifiers Tim Wyatt Tubes / Valves 6 10th September 2004 03:27 AM


New To Site? Need Help?

All times are GMT. The time now is 01:57 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