With clock rates getting faster and faster any impedance variations in a circuit layout can cause problems such as reflections on a transmission line. These reflections can degrade signal margins and cause timing errors, potentially causing failures. So it is very important to know how your PCB may effect the impedance of your circuit.
Product: CSA8000B, CSA8000, TDS8000, TDS8000B, CSA8200, TDS8200
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