On Fri, 02 Sep 2005 12:22:52 GMT, "GrahamH" put
finger to keyboard and composed:

Does anyone have any info on this part UPC1237HA-NEC, or C1237HA ?
I am trying to diagnose a possible fault in the protection circuit of a
NAD320 integrated amplifier but I don't know what to make of this IC. Any
info gratefully recieved!

Graham

Surprisingly, NEC's website has a datasheet:
http://www.necel.com/nesdis/image/IC-1806A.pdf

This Japanese app note has a good application circuit:
http://www.necel.com/nesdis/image/IEP-730A.pdf


-- Franc Zabkar

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