DIYstompboxes.com
Projects => IC-based Overdrive => Topic started by: mark123 on August 09, 2016, 07:56:09 AM
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There are a number of chips that carry the SCPA designation at the end such as ICL7660SCPA. What does it tell me? I was told that using one as a charge pump in an audio situation that I'd need the SCPA or I'd risk getting a high pitched whine at the output. I never questioned it and always went with the SCPA version.
Any idea what it means?
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In this particular case, it's the "S" that tells you the chip is capable of being wired up so that you avoid the whine (short pins 1 and 8). The other letters will tell you about packaging and other specs, none of which is whine-related and none of which will kill anyone. So not important. ;)
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Thanks for the info. :)
Best regards.
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You're welcome. (And welcome, too!) BTW, you might want to post in the main "Building your own stompbox (http://www.diystompboxes.com/smfforum/index.php?board=2.0)" forum. There's very little footfall on this project sub-board. :)
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Ah, sorry for the noob mistake. I'll figure out where to post one day. :)
Thanks so much for the assistance.