[SI-LIST] Trace Width @ 3Gb/s
- From: "Rudy Sterner" <rsterner@xxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Mon, 10 Jun 2002 08:14:26 -0700
Hello,
We have some issues with a SerDes which we think
may be related to the trace width on the serial line. The
serial port is a differential pair passing data at 3 Gb/s.
The trace width is 4 mils. Length is approximately 5 inches.
The differential impedance is 100 Ohms. Other information
which may be of use is the board material is FR-4 with an
Er of 3.9. It is specified at this data rate.
My question is: Are the traces too narrow? Should I
expect better performance with 8-mil traces?
Thank You
Rudy Sterner
LSI Logic
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