ambiq micro Apollo4 Blue EVB Manual de início rápido - Página 15
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Apollo4 EVB Quick Start Guide
Figure 8 shows the USB load switch circuit producing the voltage supplied to VDDUSB33 and
VDDUSB0_9 through solder-bridges SB13 and SB11, respectively. These solder bridges are shorted by
default.
Figure 8. Apollo4 EVB USB Load Switch Circuit
Similarly, Figure 9 shows the load switch circuit producing the voltage supplied to the MIPI DPHY VDD18
supply through solder-bridge SB9. This solder bridge is also shorted by default.
Figure 9. Apollo4 EVB VDD18/MIPI Load Switch Circuit
QS-A4-4p1
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