I'm facing a dilemma on how to route correctly in order to minimize noise on a data signal line. In the example bellow there is a 2-layer flexible PCB (which is very thin). The copper layer is 1OZ and the routing is 5mil. Red is Top layer and blue is bottom layer.
The blue wires are connected to LEDS which turn on or off many times a second, max current is 10mA. The red is 3.3V 30Mhz data signal with no error correction or protection in the protocol, just plain data. I have no doubts that there will be errors and this is fine, I just want minimum errors.
What would be the correct way to route the data signal (red) in order to minimize the noise the blue routes generate on it? The examples below just show the principle, I can't really 'go around'.
This is a very limited design in space so I have no room for LVDS. I can only make the routes thinker or double them.