User's Manual

5
4. Specification
Item
Value
Note
Min Typical Max
Frequency(MHZ)
902.20
915.0 927.80
Customizable
Temperature（℃）
-40
85
Power
Transmitting(mA)
700
770
Factory preset value
Receiving(mA)
38
Keep receiving
Transmitting Signal(dBm)
27.73 27.78 27.79
Factory preset value,
50kbps/h=1
TX Signal Offset(dB)
±0.5
Signal Stepping(dB)
0.75
When MCU+RF TXOM
pin output power is
below -4
RX Signal Offset(dB) ±0.5
Interface Type Stamp Hole 1.5mm gap
Communication Protocol SPI/UART/IIC
Size 28*22*3.1mm
Supported Standards
Wi-SUN
Electrostatic Grade ±1KV Contact discharge
RF Port Impedance (Ω) 50
Flash (W139 Only) 4Mbit
Only applicable for
W139
*
Based on input voltage 4V, temperature 25℃, relative humidity 20%
Software：WSLN200220V1