Power Distribution
As indicated, LimeSDR XTRX board may be powered via USB port (5V) or Mini PCIe edge connector (3.3V). The power delivery network consists of different power rails/voltages, filters and power sequences. LimeSDR XTRX board power distribution block diagram is presented in Figure 9.
Figure 9. LimeSDR XTRX v1.3 board power distribution block diagram