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DP83867CR: XFMR

Part Number: DP83867CR

Tool/software:

Hi team,

As shown in the figure, it is necessary to connect an XFMR (transformer) to the switch, since the switch requires an XFMR.
The TI DP83867 should also require an XFMR.
Do we need to use two XFMRs, or is one XFMR sufficient? thanks!

Jeff