User's Manual

Sensor RF module 2AA (US) User Manual
Group (signal)
Min
Typ
Max
Unit
Supply voltage (VDD and VDD1)
3.2
3.3
3.6
V
Supply current
40
mA
Ground (GND)
Connect closely to system ground
Digital I/O signaling voltage
3.0
3.3
3.6
V
Digital I/O (I2C_SCL, I2C_SDA,
READY)
7. Requirements for assembly
● Make sure that no metal objects in the enclosure are closer than 1 cm from the antenna
● Do not put any other PCB above or below the antenna area closer than 1 cm
● Use 3.3V CMOS digital signaling for digital interface pins
● Do not remove any of the shield boxes assembled around the RF circuitry
● Do not draw more than 40 mA from VDD and VDD1 in total
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