Differential pairs generally carry differential or semi-differential signals, such as high-speed digital serial interfaces including LVDS differential LVPECL, Hypertransport, Ethernet over twisted pair, Serial Digital Interface, RS-422, RS-485, USB, Serial ATA, TMDS, FireWire, and HDMI etc . or else high quality and / or high frequency analog signals ( e . g ., video signals, balanced audio signals, etc . ).
