SabreSD ENET_REF_CLK AC coupling

[mahi]

Hi community,

is there another reason for AC coupling at the ENET_REF_CLK input in SabreSD-design than adjusting the voltage levels?

In my design I want to use 2.5V for all the Ethernet-related stuff (NVCC_ENET, NVCC_RGMII and VDDIO of the PHY) so connecting ENET_REF_CLK directly (only with a series resistor at the PHY's output) should be OK - or did I miss something?

Best regards,

Martin

[igorpadykov · Accepted solution]

HI Martin

I agree with you: with the same voltage for all the Ethernet-related stuff

connecting ENET_REF_CLK directly is OK.

Best regards

igor

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