RAKwireless RAK2245 - Digital Ios; Leds; Antenna RF Interface; Electrical Characteristics

9
RAK2245
9
RAK2245 User Manual V1.2
2.8 Digital IOs
There are two digital IO PINs, which give the user a interface to reset the GPS module
or set it into standby mode. They can be left open if you don't use them.
2.9 LEDs
3 x Green LED for indicating the status of PWR, TX, RX.
2.10
Antenna RF interface
The modules have two RF interfaces for LoRa antenna and GPS antenna over a
standard UFL connectors (Hirose U. FL-R-SMT) with a characteristic impedance of
50OHM. The RF ports supports both Tx and Rx, providing the antenna interface.
2.11
Electrical Characteristics
In the following different electrical characteristics of the RAK2245 are listed.
Furthermore details and other parameter ranges are available on request.
Note: Stress exceeding of one or more of the limiting values listed under "Absolute Maximum Ratings" may
cause permanent damage to the radio module.
2.11.1 Absolute Maximum Rating
Limiting values given below are in accordance with the Absolute Maximum
Rating System (IEC 134).
Parameter
Description
Min.
Typ.
Max.
Supply
Voltage(VDD)
Input DC voltage
-0.3V
5.0V
5.5V
Operating
Temperature
Temperature Range
-40°C
+85°C
RF Input
Power
-15dBm
Table 3 | Absolute Maximum Ratings
2.11.2 Maximum ESD
The table below lists the maximum ESD.