|6th January 2015, 11:46 PM||#51|
Join Date: Feb 2006
I'm thinking of building a single rail amp with the TDA7264 and I winder if the experts here could help answer a few questions?
There is no single supply application note in the data sheet, but there is one for the TDA7265 which seems like basically the same amp with external feedback. Since there will be DC on the output the feedback network is tied to ground via a capacitor in that application. However the network is internal on the TDA7264 so I can't do that, does this rule out running single rail?
The data sheet says +/- 22v supply Max. If running single rail am I limited to a single +22v or can I double it as presumably the internal ciruitry is running biased to the supply mid point (I guess this is automatically handled inside the IC because the application doesn't show any bias network on the input).
Actually one final question. I'm looking at this amp as an alternative to my TDA7492 class D board because I've found this has noticeable third harmonic above about 1khz making my good tweeter somewhat wasted. It seems a common aspect of all low cost class D chips. Can anybody comment on if the TDA7264 is better in this regard? I expect it is given class A/B design. I know the TDA7294 is nice.
Last edited by Tenson; 6th January 2015 at 11:49 PM.
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Cd frequency responce ?||woody||Everything Else||16||17th January 2008 03:22 AM|
|BiB - responce ripple reduction ?||Empee||Full Range||48||10th December 2007 05:35 PM|
|Responce - spelling rant||joe carrow||Everything Else||73||26th May 2007 01:57 PM|
|FE206E, improving the freq. responce||Flemming J P||Full Range||3||27th October 2004 07:55 AM|
|New To Site?||Need Help?|