NEO-M8P - Hardware Integration Manual
UBX-15028081 - R05
Early Production Information
Design
Page 14 of 27
Figure 8: Active antenna design, external supply from VCC_RF (for exact pin orientation see the
NEO-M8P Data Sheet
The L,C passive component values and recommended types are given in Appendix A.1. If the
VCC_RF
voltage does
not match with the supply voltage of the active antenna, use a filtered external supply as shown in Figure 9. To
ensure that the maximum DC input voltage at the LNA input is not exceeded use a DC blocking capacitor (value
C).
Active antenna design powered from external supply
Figure 9: Active antenna design, direct external supply (for exact pin orientation see the
NEO-M8P Data Sheet
The circuit shown in Figure 9 works with all u-blox M8 modules, also with modules without
VCC_RF
output.
