We previously quickly discussed signal reflection in our PCB Transmission Line series. This is an in-depth article about this very important topic that PCB designers should master. The first thing to remember is that reflections in transmission lines occur due to impedance discontinuity.
For PCB designers and engineers, optimization is key. Optimization of time, cost, and even effort. Sierra strives to provide customers with high-quality PCBs and excellent service. This includes best practice tips for designers. When designing your next circuit board, you need to watch out for some crucial cost drivers.
Controlled impedance is not science fiction… Especially when you know how to calculate your controlled impedance traces. But, do you? Open our free Impedance Calculator – which will help you answer some of the following questions – and get ready to take the quiz!
During DesignCon 2018, Sierra interviewed Heidi Barnes, Senior Applications Engineer at Keysight Technologies. We asked her questions about power integrity, capacitors, and impedance.
During DesignCon 2018, we met with Gustavo Blando, Senior Principal Engineer at Oracle. We discussed material characterization, transmission lines, differential pairs, how placing vias can reduce crosstalk… among other things!
After establishing what a PCB transmission line is and talking about signal speed and propagation delay, and the critical length, the controlled impedance, and the rise/fall time of a PCB transmission line, we discussed impedance discontinuity and signal reflection. Today, we are going to explain how to analyze a PCB transmission line using quantities, such as voltages and currents, and line parameters, such as resistance, inductance, capacitance, and conductance.
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