V-Chip Microsystems VT-SX1278-433M User Manual - General Characteristics
COPYRIGHT @ 2016 Shenzhen V-CHIP MICROSYSTEMS Co. Ltd v1.0.0
VT-SX1278-433M
General Characteristics
Test operating conditions:Ta=25°C,VCC=3.3V if nothing else stated.
Parameter
Type
Condition/Note
Operating supply voltage
DC 1.8~3.7V
Central frequency
433MHz
Can be programmable to other frequency in bands
410~525MHz
Frequency accuracy
±10KHz
Modulation format
FSK/OOK/LORA
Programmable
Transmit power
-2~+20dBm
Programmable
TX current consumption
<140mA
Po=20dBm
Receiver sensitivity
-110dBm
@LoRa,SF=12,BW=7.8kHz
RX current consumption
<14mA
Sleep State current consumption
<1uA
Refer to IC operation states
Data rate
0.018kbps~300kbps
Programmable
Spurious emissions and harmonics < -30dBm
TX power +20dBm.
Communication distance
>3000m
0.8kBaud data rata, +20dBm output power.
Antenna impedance
50ohm
Operating temperature
-20~+85 °C
Storage temperature range
-50~+125°C
Dimension
20.5×15.5×2.0mm
See more in PCB description
Note:
1. The module transmission data rate will affect Transmission distance ,the higher the data rate , the closer the
distance, and the lower the receiving sensitivity.
2. The supply voltage to the module will affect TX power, in the operating supply voltage range, the lower the
voltage, the lower the TX power.
3. The module central frequency will change as the operating temperature change, use it under suggest temperature,
the module can work well.
4. The antenna will strongly affect the communication distance, please select matched antenna and connect it
correctly.
5. The module mount will affect the communication distance.