OpAmp Advice Needed Please Guys

FNQ · 1st March 2011, 11:09 AM

Hi folks. I was advised to replace the two OpAmps in my Pioneer PDS802 with two of the high quality LM4562 which are DIL 4 pins per side. They arrived today and with enormous enthusiasm I took off the cover and searched for the two OpAmps to remove. After many checks in every little nook and crannie, I did not find any OpAmps of that configuration. What I DID find were two "Single line" ic's labelled NJM5532SD.
Could you please tell me if I am supposed to somehow adapt the LM4562 to replace the 5532SD's or have I ordered completely incorrect items.
If incorrect, could a member please let me know what is the best IC to buy for replacement of the 5532SD's.
I have just earlier today completed replacement of ALL electrolytics and using the analogue out-which is my preference-I got better impression of dynamics and noticeably increase in same given volume as set before the re-cap job. So I am definitely going thru with the works (as funds permit over time that is!!) Thanks guys..

Mooly · 1st March 2011, 11:15 AM

The 5532 is a common dual opamp, the LM4562 it's successor really. As long as the package is correct (DIL or SMD) then it's a straight swap.

Mooly · 1st March 2011, 11:17 AM

Just re reading your post... you say SIL (Single in line). If so they won't fit.
Do they look like this ?
Google Image Result for http://www.donberg.ie/pics/b/ba_15218n.jpg

FNQ · 1st March 2011, 11:33 AM

Mooly the link you gave shows the configuration of what is fitted in the player-all pins in one line.
The LM4562 has 4 pins per side and is about 1/4 of an inch or so long.
So question is Can I get a LM4562 in the same configuration as the IC on your link?

Mooly · 1st March 2011, 11:41 AM

My data sheet suggests not.

tbh the SIL package is a bit rare these days. If you are into making PCB's it's easy to etch some adapters or buy some (check the connections are correct first and they are for dual opamps). Found these.
Parts & kits

You could even hard wire them if needs be I guess.

Minion · 1st March 2011, 11:58 PM

You can easilly do an adapter , even on strip board .... I did some 2 single opamp to one dual opamp boards a few years ago and they worked well ....

FNQ · 2nd March 2011, 04:01 AM

Minion yeah I think I will do a hardwire. But tell me this if you will..The LM4562 has pins 1 to 8 ......yet the 5532SD has NINE pins..????

Mooly · 06:34 AM

The nine pin package has pins 1 and 9 internally connected.

Look at the data sheets here (the packages) and make sure you understand

Imagine cutting off pin 1 and then renumbering all the remaining pins 1 to 8 (rather than the original 2 to 9)

Your 9 pin here (scroll down to the block diagram)
http://www.datasheetcatalog.org/data...nic/AN6551.pdf

Standard dual opamp 8 pin dil,
http://www.datasheetcatalog.org/data...A_SA5532_3.pdf

Edit... You may need to physically link with wire 1 and 9 on the PCB if circuit continuity depended on the "wire" in the opamp. A quick look at the PCB should confimr whether that's needed.

FNQ · 2nd March 2011, 07:34 AM

Ah Mooly you are a lifesaver mate. I looked at the diagrams per your links and "By Jove I think I've got it".... Many thanks for yur gr8 help. Cheers

Mooly · 2nd March 2011, 07:37 AM

That's good.
Do you know how you will fit them ?

1st March 2011, 11:09 AM	#1
FNQ diyAudio Member Join Date: Feb 2010	OpAmp Advice Needed Please Guys Hi folks. I was advised to replace the two OpAmps in my Pioneer PDS802 with two of the high quality LM4562 which are DIL 4 pins per side. They arrived today and with enormous enthusiasm I took off the cover and searched for the two OpAmps to remove. After many checks in every little nook and crannie, I did not find any OpAmps of that configuration. What I DID find were two "Single line" ic's labelled NJM5532SD. Could you please tell me if I am supposed to somehow adapt the LM4562 to replace the 5532SD's or have I ordered completely incorrect items. If incorrect, could a member please let me know what is the best IC to buy for replacement of the 5532SD's. I have just earlier today completed replacement of ALL electrolytics and using the analogue out-which is my preference-I got better impression of dynamics and noticeably increase in same given volume as set before the re-cap job. So I am definitely going thru with the works (as funds permit over time that is!!) Thanks guys..

1st March 2011, 11:15 AM	#2
Mooly diyAudio Member Join Date: Sep 2007	The 5532 is a common dual opamp, the LM4562 it's successor really. As long as the package is correct (DIL or SMD) then it's a straight swap. __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*

1st March 2011, 11:17 AM	#3
Mooly diyAudio Member Join Date: Sep 2007	Just re reading your post... you say SIL (Single in line). If so they won't fit. Do they look like this ? Google Image Result for http://www.donberg.ie/pics/b/ba_15218n.jpg __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*

1st March 2011, 11:41 AM	#5
Mooly diyAudio Member Join Date: Sep 2007	My data sheet suggests not. tbh the SIL package is a bit rare these days. If you are into making PCB's it's easy to etch some adapters or buy some (check the connections are correct first and they are for dual opamps). Found these. Parts & kits You could even hard wire them if needs be I guess. __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*

2nd March 2011, 06:31 AM	#8
Mooly diyAudio Member Join Date: Sep 2007	The nine pin package has pins 1 and 9 internally connected. Look at the data sheets here (the packages) and make sure you understand Imagine cutting off pin 1 and then renumbering all the remaining pins 1 to 8 (rather than the original 2 to 9) Your 9 pin here (scroll down to the block diagram) http://www.datasheetcatalog.org/data...nic/AN6551.pdf Standard dual opamp 8 pin dil, http://www.datasheetcatalog.org/data...A_SA5532_3.pdf Edit... You may need to physically link with wire 1 and 9 on the PCB if circuit continuity depended on the "wire" in the opamp. A quick look at the PCB should confimr whether that's needed. __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.* Last edited by Mooly; 2nd March 2011 at 06:34 AM.


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1st March 2011, 11:33 AM	#4
FNQ diyAudio Member Join Date: Feb 2010	Mooly the link you gave shows the configuration of what is fitted in the player-all pins in one line. The LM4562 has 4 pins per side and is about 1/4 of an inch or so long. So question is Can I get a LM4562 in the same configuration as the IC on your link?

1st March 2011, 11:58 PM	#6
Minion diyAudio Member Join Date: May 2006	You can easilly do an adapter , even on strip board .... I did some 2 single opamp to one dual opamp boards a few years ago and they worked well ....

2nd March 2011, 04:01 AM	#7
FNQ diyAudio Member Join Date: Feb 2010	Minion yeah I think I will do a hardwire. But tell me this if you will..The LM4562 has pins 1 to 8 ......yet the 5532SD has NINE pins..????

2nd March 2011, 07:34 AM	#9
FNQ diyAudio Member Join Date: Feb 2010	Ah Mooly you are a lifesaver mate. I looked at the diagrams per your links and "By Jove I think I've got it".... Many thanks for yur gr8 help. Cheers

2nd March 2011, 07:37 AM	#10
Mooly diyAudio Member Join Date: Sep 2007	That's good. Do you know how you will fit them ? __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*

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