|20th March 2008, 03:33 PM||#12|
Join Date: Jan 2007
Blog Entries: 3
Andrew, the PGA is capable driving 600 Ohm.
But I presume Dxs question is different and I can't answer that.
From my opinion most of the Gainclone buffering is technically unjustified and maybe driven by the pleasant extra distortion most of the buffer circuits may provide.
|22nd March 2008, 09:55 AM||#13|
Concerning the LM4562 unity gain problem;
It seems there is no problem on unity gain without a resistor on NFB line..
And this is the last situation of my circuit;
As you can see, RC circuits fixed...
Do you have any additional advice?
And my "question" is still actual: do I need a buffer before LM3875?
PS: R5 is still 20K
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