What is Characteristic impedance?
The ratio of voltage to current seen by a wave traveling along a transmission line, set by trace width and layer spacing. Changes along the path cause reflections.
Field: I/O Interfaces & Buses
Characteristic impedance in the explanations
Wherever the characteristic impedance changes, at connectors, vias or mismatched terminations, part of the signal reflects back and overlaps later bits, distorting the waveform.
Why are high-speed signal traces designed so that their cha…High-speed signals require matched trace lengths and characteristic impedance, so each product needs its own design.
What is the printed circuit board called that attaches to t…
Questions that mention Characteristic impedance (2)
- Why are high-speed signal traces designed so that their characteristic impedance matches the transmit and receive circuits?
- What is the printed circuit board called that attaches to the tester's test head, carries the IC socket and peripheral components and routes signals to the IC for each product?
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