3 ms·

What frequency ranges does it start to become an issue? Cheap controllers can be on in the hundreds of MHz now.

• petsfed 3y ago
  >The limiting factor that will determine whether any resonances are excited is the size of the square region in a right-angle PCB trace. In particular, the lateral size of the region will be approximately equal to the quarter wavelength of the lowest order resonance, so this gives you a good baseline for estimating the fundamental resonance frequencies. The remaining harmonics will be approximately odd multiples of the fundamental frequency. If we allow a very generous trace width of 30 mils with an effective dielectric constant of 3.5, the lowest order frequency is 112 GHz! If we take this as a knee frequency for a digital signal, this is equivalent to a 3 ps rise time, which is well-below that for commercially available digital components. [0] That whole article addresses the myths surrounding right angle traces pretty effectively. 0. https://www.nwengineeringllc.com/article/right-angle-pcb-traces-its-time-to-kill-the-myths.php https://www.nwengineeringllc.com/article/right-angle-pcb-tra...