4558DD Datasheet

Kinger · 15th July 2005, 04:45 PM

Does anyone know where I can find a datasheet for a JRC 4558DD chip?

carlosfm · 15th July 2005, 06:22 PM

http://www.google.pt/search?hl=pt-PT...esquisar&meta=

mateo88 · 15th July 2005, 06:27 PM

here

Edit: sorry, my crappy dialup connection decided to be dumb while uploading the file. I think the file is too large anyway, though. Just do a google search like Carlos suggested, and it comes up quickly.

slackman · 15th July 2005, 06:31 PM

and anotherone...

OpAmp

mic

Fixup · 16th July 2005, 06:03 AM

A tip for finding datasheets:

www.digikey.com
www.newark.com
www.mouser.com

You search most parts there and usually datasheets applied.

AnthonyPT · 17th July 2005, 06:02 AM

Hi

Wonder what is the attraction of the Jrc 4558
Ics? Always thought they were 741 style clones and
as old as the hills. I have three in a nice C22 Aiwa
micro preamp and was planning on replacing them with
B&B or other more modern Ics. Am I missing something?

AnthonyPT

slackman · 17th July 2005, 11:01 AM

Yes,
you're right - old as the rocks.
If they're used in audio signals better to replace them with 2-op chips (opa 2132 or opa 2134 or linears).

i think kinger is in search of an replacement...

carlosfm · 17th July 2005, 02:30 PM

Quote:

Originally posted by AnthonyPT
Wonder what is the attraction of the Jrc 4558
Ics?

Kinger asked for the JRC/NJM 4558 datasheet, that's all.
I don't think there's any attraction here.
It's hard to pick a worse op-amp than the 4558.

AnthonyPT · 19th July 2005, 05:32 AM

Hi,

Yes Carlos, like you I believe Jrc4558 ICs
should be left to non-audio applications these
days where they do not defile our ears! It was
just that the S Korean master of miniaturisation,
Sijosae (Jeoing Seob Shin) used them in a cough
lozenge box size headphone amp if I recall correctly.
Perhaps he was experimenting with what
was at hand in his tool box ! Perhaps he was
just making a hearing aid for a poor friend in the North!

So what IC replacement in your opinion would make
a circuit with 4558s to sound acceptable
in the 21st century with minimal other circuit
changes?

regards

AnthonyPT

carlosfm · 19th July 2005, 03:51 PM

Quote:

Originally posted by AnthonyPT
So what IC replacement in your opinion would make
a circuit with 4558s to sound acceptable
in the 21st century with minimal other circuit
changes?

regards

AnthonyPT

In what kind of circuit?
I've seen 4558s as I/V on CDPs, you know...

The recommendation may depend of where do you want to replace that op-amp.

15th July 2005, 04:45 PM	#1
Kinger diyAudio Member Join Date: Jul 2005 Location: Lincolnshire, England	4558DD Datasheet Does anyone know where I can find a datasheet for a JRC 4558DD chip?

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15th July 2005, 06:22 PM	#2
carlosfm Banned Join Date: Mar 2003 Location: Lisbon, Portugal	http://www.google.pt/search?hl=pt-PT...esquisar&meta=

15th July 2005, 06:31 PM	#4
slackman diyAudio Member Join Date: Mar 2005 Location: Germany, lower saxonny (Bremervörde)	and anotherone... OpAmp mic

16th July 2005, 06:03 AM	#5
Fixup diyAudio Member Join Date: Feb 2005 Location: N. Calif.	A tip for finding datasheets: www.digikey.com www.newark.com www.mouser.com You search most parts there and usually datasheets applied.

17th July 2005, 06:02 AM	#6
AnthonyPT diyAudio Member Join Date: Oct 2004	Hi Wonder what is the attraction of the Jrc 4558 Ics? Always thought they were 741 style clones and as old as the hills. I have three in a nice C22 Aiwa micro preamp and was planning on replacing them with B&B or other more modern Ics. Am I missing something? AnthonyPT

17th July 2005, 11:01 AM	#7
slackman diyAudio Member Join Date: Mar 2005 Location: Germany, lower saxonny (Bremervörde)	Yes, you're right - old as the rocks. If they're used in audio signals better to replace them with 2-op chips (opa 2132 or opa 2134 or linears). i think kinger is in search of an replacement...

19th July 2005, 05:32 AM	#9
AnthonyPT diyAudio Member Join Date: Oct 2004	Hi, Yes Carlos, like you I believe Jrc4558 ICs should be left to non-audio applications these days where they do not defile our ears! It was just that the S Korean master of miniaturisation, Sijosae (Jeoing Seob Shin) used them in a cough lozenge box size headphone amp if I recall correctly. Perhaps he was experimenting with what was at hand in his tool box ! Perhaps he was just making a hearing aid for a poor friend in the North! So what IC replacement in your opinion would make a circuit with 4558s to sound acceptable in the 21st century with minimal other circuit changes? regards AnthonyPT

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