unicore UM620N, Reference Design

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1
1 Reference Circuit Using an Active Antenna
 The supply voltage for VCC is 2.7 V ~ 3.6 V
 Ground all GND pins of the module
 Connect the RF_IN signal to the antenna; note the 50 Ω impedance matching
 Feed the antenna with external power supply
 The supply voltage for VBCKP is 1.7 V ~ 3.6 V
Active Low
VCC 2.7 V~3.6V
VBCK P 1. 7 V~3.6V
RF Short 50ohm Line
Figure 1-1 Reference Circuit Using an Active Antenna