[Figure 1, callout 34]
The ZCU216 board provides a pair of SMAs (J6, J7) for differential AC coupled user MGT clock input into Zynq UltraScale+ RFSoC U1 GTY Bank 130. This differential signal pair is series-capacitor coupled. The P-side SMA J6 signal USER_SMA_MGT_CLOCK_P is connected to U1 MGTREFCLK1P pin M34, and the N-side SMA J7 signal USER_SMA_MGT_CLOCK_N is connected to U1 MGTREFCLK1N pin M35. The user SMA MGT clock differential signal amplitude must not exceed -0.5V (Min) to 1.30V (Max).
The detailed RFSoC connections for the feature described in this section are documented in the ZCU216 board XDC file, referenced in Xilinx Design Constraints.