![]() ![]() All are important in getting PCB layouts accurately designed for signal integrity before fabrication and eventual bring up at the bench. Years of study have led to application of solid PCB layout techniques for good grounding schemes, careful arrangement of layer stackup, material selection and impedance control, via placement, and termination circuits. Staring at schematics to determine high-speed signal design considerations is complicated. Signal integrity simulators feel like a big unpeeled onion to me. Along with intuitive tools, each step leads to the next and pretty soon you’re sending commands from your smart phone to your food processor before you get home. It would be nice if all of life were so simple, and I suppose it is if you can just break each task into a simple series of steps. You pick up an onion, a knife, and get going. Sometimes the biggest onion can’t be peeled.
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