For my final project I have to measure multiple signals up to 10MHz with a TMS320F2809 processor which is clocked at 100MHz.
I have the following layer stackup:
- Top Signal
- Bottom Signal
On the signal layers do I have to put a polygon plane? Is it a good idea to connect to the ground? Will it act as a capacitor between the trace and the ground polygon?
According the following description on the top and bottom layer should be routed only low frequency. Which range is low frequency)(1Hz up to ?)? I tried to follow that description, but when two IC was within 1cm range I routed on the layer where the ICs are.