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On Wed, Oct 11, 2017 at 6:18 PM, Richard Wilbur richard.wilbur@gmail.com wrote:
Afterthought: If PADS does give impedance values, please include the values for each of the HDMI differential traces and a URL to images of the top and bottom layers of that layout.
they're all 89 ohms, single-line.
That way I'll be able to make recommendations and markup the picture to hopefully make everything clear.
appreciated... there's no differences: they're all 89 ohms. i'm assuming that's calculated from track width and board / layer widths.
capacitance is slightly different: the shorter traces (TX2) are 3.06pF, the longer ones (CK) are 3.55pF - i would imagine that the extra length results in a directly-proportionally larger capacitance?
l.