This card routes the RF signals to nine RF slice connections to support up to four receive (RX), one feedback (FB), and four transmit (TX) slices. The baseboard provides power and signal conditioning for these RF slices. It contains the Kria K26 SOM which acts as the RF system controller for the baseboard and RF slices (see the Kria K26 SOM Data Sheet (DS987). The baseboard and SOM assembly are mounted on a sheet metal tray along with the RF slices. The entire assembly mounts to a ZCU670 or ZCU208 evaluation board.
Figure 1. XRF4 Baseboard (XRF4-RFBB)