I am a "new kid in town" and is task to look into the high-speed design area. I understand this is not an easy topics and I hope to get some expert guidances from all of you. I have to come out with design rules so as that designs
require such area can refer to. Have someone draft a set of high speed design rules that can share with me?
I have the following queries that that some of you might able to help me. They are:
1. How you identify high speed signal? By its rise time or by its operation?
2. Someone told me that all high speed signals have to be impedance controlled. Is this correct? If not, what signals should be impedance controlled.
3. I come across a so-called high-speed board which has many vias being punched on its fill (for both ground and power) along side the pads for inductors and capacitors. They are also found on very thick ground traces. What are
the purposes of such vias? Did they play a role in high speed?
I look forward to your reply.
Thanks and regards.
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