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kasunt 9th May 2012 09:24 AM

Digital, real time audio freq spectrum display
Hi guys,

Im trying to build an amp so i can chop it in to different frequencies using a dsPIC to display on a LCD or on a LED matrix.

The amp circuit uses a 56nF mica cap which is hard to find. Its using Microchip MCP6022 dual op-amp. Any ideas what I can use to substitute the 56nF cap ?? Im guessing micas are used to lessen the noise.

Thanks in advance.

nigel pearson 9th May 2012 10:38 AM

Try NPO / COG Ceramic . It should be fine .

kasunt 9th May 2012 10:55 AM

Awesome. Thanks a bunch :).

I'm looking at -> C1812C563J1GACTU Kemet | 399-5368-1-ND | DigiKey

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