Intuitive Stack-up Planning & Impedance Control
How do you intuitively engineer good impedance controlled PCB stack-up and routing plans for each new design which meet all of their specific impedance control design requirements?
- Always force the design into the same one or two because they worked in the past?
- Buy a very expensive and complex tool like Polar?
- Hire some “expert” to do it?
Can you intuitively visualize and understand what it’s doing and how to reliably use it?
How do you efficiently approach gathering the raw data to make the final choices?
As signal speeds increase the shortcomings of materials (like FR-4) become critical. Dielectric constants aren’t constant resulting in dispersion. Loss increases and is frequency dependent resulting in signal degradation over longer runs. Gathering information on lots of materials, tabulating all the information at various frequencies along with the specific thicknesses available, selecting optimal materials and adjusting stack-ups to compensate can be very time consuming and error-prone.
In this Webinar Nine Dot Connects’ Sr. Principle EE Jeff Condit will show you intuitively how various elements of a PCB’s structure and routing affect the electromagnetic fields and in turn the couplings, energies, and characteristic impedances of traces on it. Practical suggestions, methods, alternatives and solutions will be discussed.
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