UM620N V1R0 Hardware Reference Design
2
2
Reference Circuit Using a Passive Antenna
When using a passive antenna, a low noise amplifier should be added between
the antenna and the RF_IN of the module in order to ensure the performance of
the system.
For the RF routing (antenna
LNA
RF_IN), note the 50 Ω impedance matching
The supply voltage for VBCKP is 1.7 V ~ 3.6 V
VCC 2.7 V~3.6V
VBC KP 1.7 V~3.6V
RF Short 50ohm Line
Active Low
Figure 2-1 Reference Circuit Using a Passive Antenna
