[SI-LIST] Differential Signals with changed ground references
- From: "ryansatrom" <ryan.satrom@xxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Tue, 26 Feb 2008 16:36:20 -0000
I am currently trying to determine the performance of an interface
where the PCB ground planes and the device grounds are not tied
together (except on the very outside of the PCB).
I recognize this is a design flaw (I didn't design the PCB), and I also
recognize that this causes floating signals for all single-ended
signals.
However, my intuition tells me that the differential signals would
perform okay (ignoring any failures due to PDS - strictly from a signal
integrity perspective).
Am I correct in this assumption? Or would it be based on the device
design and how the device reads the differential inputs/outputs?
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