Replacement for NJM4580

EE · 28th August 2009, 06:10 PM

In my amp there is a NJM4580 from JRC, one half being used as DC servo and the other as an input buffer for the amp. It is dead because of its zener supplynow being a short to the positive rail.

I cannot source any NJM4580. Is there a suitable replacement which can do both functions equally well? NE5532 (which I have plenty) maybe?

Regards

Nrik · 28th August 2009, 07:25 PM

If you really want NJM4558 then go to the scrapyard and pick up any ghettoblaster or cheap stereo.

Or You could just use your NE5532 and then you will experience much better sound quality.
But change the similar one in the other channel.

tiefbassuebertr · 28th August 2009, 07:27 PM

you can use a wide range of dual op amps
I would try the follow: OP-275 (Analog Devices), OPA-2132, OPA2604 and NE5532 (last three from TI)
please go also to
http://www.diyaudio.com/forums/showt...?postid=448316
Datasheet NJM4580:
http://akizukidenshi.com/download/NJM4580.pdf
Datasheet OP-275:
http://www.analog.com/static/importe...eets/OP275.pdf

28th August 2009, 06:10 PM	#1
EE diyAudio Member Join Date: Oct 2003	Replacement for NJM4580 In my amp there is a NJM4580 from JRC, one half being used as DC servo and the other as an input buffer for the amp. It is dead because of its zener supplynow being a short to the positive rail. I cannot source any NJM4580. Is there a suitable replacement which can do both functions equally well? NE5532 (which I have plenty) maybe? Regards

28th August 2009, 07:25 PM	#2
Nrik diyAudio Member Join Date: Feb 2005 Location: Copenhagen	If you really want NJM4558 then go to the scrapyard and pick up any ghettoblaster or cheap stereo. Or You could just use your NE5532 and then you will experience much better sound quality. But change the similar one in the other channel. __________________ STOP - Hammertime!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
NJM4580 to OPA2228, which one exactly?	minnie	Parts	2	8th November 2008 12:14 AM
JRC NJM4580 (or Behringer UB802) as headphone amp ?	percy	Headphone Systems	7	24th February 2006 05:39 AM
where can I get a SSOP8 NJM4580 ?	ashok	Parts	5	22nd February 2006 10:38 AM
How to upgrade CDP head phone amp (NJM4580)	DIAR	Chip Amps	7	30th July 2004 01:23 AM
NJM4580 SIP op amp... where to buy in USA?	Stephen D	Solid State	2	6th April 2004 07:37 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

28th August 2009, 07:27 PM	#3
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	you can use a wide range of dual op amps I would try the follow: OP-275 (Analog Devices), OPA-2132, OPA2604 and NE5532 (last three from TI) please go also to http://www.diyaudio.com/forums/showt...?postid=448316 Datasheet NJM4580: http://akizukidenshi.com/download/NJM4580.pdf Datasheet OP-275: http://www.analog.com/static/importe...eets/OP275.pdf

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)