Some of the PCB layer diagrams look pretty cool: https://www.imx6rex.com/wp-content/uploads/2016/02/OpenRex-L...
Anyone know why they are designed this way? Very wiggly traces.
Anyone know why they are designed this way? Very wiggly traces.
Differential pairs carry polar opposite signals so that any noise can be canceled out by comparing the two. While parallel bus traces need to be routed to 1/20-1/40th of a wavelength, the differential pairs need to be routed to within 20mils of each other with impedance controlled traces (which depends on distance to each other and other traces as well as material variability, hence the tight routing).