Ebyte E21-230G37S 37dBm 20km RF Gain Power Amplifier PA High Power 230MHz 433MHz Power Amplifier PA Wireless Module

E21-230G37S Power amplifier PA module second harmonic and power Long-distance communication LNA low noise amplifier [Communication interface]：stamp hole [Transmitting power]：37dBm [Communication distance]： 20km [Receive gain]：15dBm [Introduction]：E21-230G37S is a pure hardware RF medium power amplifier (PA) with a maximum output power of 37dBm and a frequency range of 220 to 236MHz. It has a built-in LNA low noise amplifier and uses high-quality PA chips + unique design solutions to greatly improve PA working efficiency and enable continuous data transmission at an ambient temperature of -40 to +85 degrees. It has built-in filters, limiters, and low noise coefficients to improve the receiving channel's receiving sensitivity and extend the communication distance. Main parameters performance Remark minimum value Typical value maximum value Power supply voltage(V) 4.5 5 5.5 ≥ 4.7V guaranteed output power PA control voltage (V) 7 7.5 8 It is recommended to use 7.5V to ensure the best performance Working temperature (℃) -40 25 +85 Industrial grade design Working frequency band (MHEz) 220 - 236 The default frequency band is 230MHz, Power consumption Emission current (mA) 1200 1300 1400 Instantaneous power 37dBm (power supply voltage 5V, PA voltage 7.5V test) Receive current (mA) 6.5 8 -100dBm input current 8mA Sleep current (uA) 3.0 T/RX_EN = or Maximum transmit power (dBm) 36 37 38 The input power of the front stage is greater than 17dEm to ensure full power output. Receive gain (dBm) 14 1 5 17 -100dBm input Transmission gain (dB) 30 32 34 前级输入 5dBm 模The front-end input 5dBm module can stably output 37dBm. Main parameters describe Remark reference distance 20Km In a clear and open environment, the antenna gain is 5dBi, the antenna height is 2 meters, and the air rate is 2.4kbps. Packaging method SMD type / Interface mode 1.5mm stamp hole Overall dimensions 45*30mm l RF input and output interface stamp hole Equivalent impedance is about 50 Ω Main parameters performance Remark minimum value maximum value Power supply voltage(V) 4.5 5.5 Exceeding 6V will permanently burn the module PA drive voltage (V) 7 8 Default 7.5V power supply can output full power Blocking power (dBm) - 10dbm High-power modules are more likely to be burned when used at close range Working temperature (℃ ) -40 +85 Industrial grade