This is about a chip noone knows about. It creates a 5 led vu meter from an AC/DC Input. It is a Single Inline Package. Chip code is B1432N. I use it all the time and feel spark-fun should sell it.
Sorry, can you provide a link to a datasheet please? I looked on google, and while the search for “b1432n” did have some hits, they ended up empty. Some of them had the word “obsolete” in them.
Even so, I was thinking about using a uC to make a VU meter with AC input (capacitively coupled).
it sure sounds like no one knows about it. literally.
National Semiconductor makes the LM3914/15/16 dot/bar driver chips with 10 outputs.