The XRF4-RFBB provides power for four dual-channel TX slices, four dual-channel RX slices, and one dual-channel FB slice. The platform provides enough power to support a pre-driver stage and possibly a driver stage. The final stage power amplifier (PA) might still require external DC bias feed. The three power rails supplied to the RF slice are a user-configurable supply of 6-12 V, 5 V, and 3.3 V.
The following tables show the maximum current specifications for the RX, FB, and TX RF slice slots.
| Voltage Rail | Maximum Current (A) |
|---|---|
| 3.3 V | 0.250 |
| 5 V | 1.00 |
| VDD (6 V to 12 V) | 0.40 |
| Voltage Rail | Maximum Current (A) |
|---|---|
| 3.3 V | 0.250 |
| 5 V | 2.00 |
| VDD (6 V to 12 V) | 0.85 |