NE570 replacement?

[Peter Snowberg]

Does anybody know of a good functional substitite (not pin-for-pin) for the NE570 compander?

Thanks!

I tried the search function, but it was not my friend today.

[MartyB]

Peter,

  I found SA570 or NE570N or NE572.

HTH
Marty

[johngreene]

I've been doing a lot of searching for this kind of chip lately for a project and all I've been able to find are:
http://www.magnachip.com/ENG/Products/Standard/MixedICs/Phone/GL6552.html
http://www.samsung.com/Products/Semiconductor/SystemLSI/Telephone/CordlessPhone/S1T8507C01/S1T8507C01.htm
http://www.freescale.com/files/archives/doc/data_sheet/MC33111.pdf?srch=1
http://www.lansdale.com/prdmot8.htm This company appears to make the MC33111 now.
http://www.mitsumi-components.com/english.html MM1100 MM1102 MM1077

SA8507     Silan
DBL5020    daewoo
BA7725      rohm
LA8632      Sanyo

edit: forgot about That Corporation. http://www.thatcorp.com/4301desc.html

--john

[puretube]

Philips got/had some up-to-date low power/voltage, smd audio-processor stuff...
SA572
SA571
SA5752
SA578
SA577
SA576
SA575

http://www.search.philips.com/search/search?q=compandor&s=semi&l=global&h=semi

[johngreene]

Philips got/had some up-to-date low power/voltage, smd audio-processor stuff...
SA572
SA571
SA5752
SA578
SA577
SA576
SA575

http://www.search.philips.com/search/search?q=compandor&s=semi&l=global&h=semi

On Semiconductor makes all of those now.

http://www.onsemi.com/PowerSolutions/parametrics.do?id=969

--john

[Mark Hammer]

Just in case some naive observers may not grasp the subtleties here, by "functional", you mean a chip that does the "same thing", more or less, but: a) does not have the same pinout, b) may require different signal conditioning at both input and/or output, and c) may require more or fewer external support components to accomplish what it does.

This is NOT the same as proposing that a pair of LF353 FET-input dual op-amps can sub for a TL074 quad bifet op-amp.

[Ethan]

http://www.toko.com/semiconductors/sgcompandor.html

I think the compander and expander are in different packages

[R.G.]

A single channel device is nice. But it's really bizzare - they have two part numbers, one a compressor and one an expandor, but the typical circuits show identical internal arrangements, only the external parts are hooked up differently.

[Peter Snowberg]

Thanks for the replies!

The PT2395 is still made so I was hoping to find a current make of compander to join with it. 

[Nasse]

  Small Bear does stock NE570  !!!

http://www.smallbearelec.com/Detail.bok?no=235

[johngreene]

You can order the whole family of NE570 devices from On Semiconductor. Just received my low-voltage 575s last week.

http://www.onsemi.com/PowerSolutions/parametrics.do?id=969

--john

[redeffect]

OK, lets get right to the point. Is the reason you want to use something different than the 570/571 an availability/ performance issue? Or; you "just want to do something different"? (I can relate to that...)
red

[Peter Snowberg]

Thank you Nasse. I was looking for a currently manufactured devices and thought all the NE570s out there were NOS parts by this point.

Big thanks again for the sources and substitutes.