Replace op-amp in CD-player

[rmihai]

Hi,

I need your advise. I want to replace an op-amp Njm4580 in my cd-player and I don't know which would be the best solution.

This op-amp is having a single power suply.

http://www.ampslab.com/PDF/njm4580.pdf

From Analog Devices or Burr Brown, what it will the best?

Thanks a lot

 

[maxlorenz]

Hello:
Probably I know as little as you about this but I think you first have to tell us what kind of package outline is your 4580 and try to find a diagram of your output stage.

From here I suspect 4580 has different pin configuration than 2 of the most popular opamp for upgrade: AD825 and OPA627.

Hope this helps.

Mauricio

-----------------------------------------------------------------------------------
"DIY or DIE"

 

[drews]

4580 is a double op-amp and Opa627 and ad825 are single op-amp. You can use two opa627/ad825 for channel or replaced 4580 with Op275 (double op-amp).

 

[maxlorenz]

...so you'll have to use an adaptor module to fit two opamps, like this (type 2):

http://www.referenceaudiomods.com/M...reen=CTGY&Store_Code=RAM&Category_Code=OPAMPS

I'm concerned about pin configuration but here they say that type2 is good for NJM4560 replacement and I think 4560 has same pin configuration than 4580. Am I wrong?

Good luck

Mauricio

 

[maxlorenz]

Sorry:

I meant if you still want to use the single opamp versions

M