RGMII 125MHz(ECn_GTX_CLK125) clock rising/falling time are fail. We tried to remove LS1046A and add dummy load to measure timing that can meet spec. our design is 2.5V.
LS1046A RGMII AC timing specifications (LVDD = 2.5 /1.8 V)
Rise time (20%-80%) tRGTR — — 0.75 ns
Fall time (20%-80%) tRGTF — — 0.75 ns
Our measuement result:
Can we remove LS1046A to measure timing or do you have any comment?