In my job I am using a CM2009 IC between precise VGA controller and VGA output connector. It is really described during the datasheet for this IC that I can use EMI filters on HSYNC, VSYNC and DDC channels correct after IC and prior to VGA connector. Although there aren't https://andreiljea.blogprodesign.com/52953807/an-unbiased-view-of-emc-vs-emi-filter