FR4 Propagation Delay
FR4 is the most common plastic laminate grade used on PCBs because of its versatile properties. When you need to calculate the propagation delay of a circuit on your PCB, you need to first know the propagation delay. To calculate propagation velocity, divide the speed of light by the square root of the dielectric constant. The dielectric constant of FR4 is generally right around 4. Now to calculate propagation delay, you will divide the distance of your wire by the square root of the speed of light.
Handling all of the intricacies of PCB design can obviously be tricky business. That makes routing connections on your FR4-laminated board a breeze while making sure your circuits function properly, then consider joining CircuitMaker.
CircuitMaker is a free online EDA community that can help you:
Quickly route connections with a user-guided routing automation technology
Access component libraries and see real-time costs at the item-level
Adapt tested reference designs so you don’t have to start from scratch
Create project release documents to send to fabrication and manufacturing
Interested in seeing how easy it can be to design a PCB? Join CircuitMaker now.