E21-900G30S Built in LNA low noise amplifier
[Interface]：Stamp hole
[Frequency]：850～931MHz
[Power]：30dBm
[Distance]：5km
[Size]：27.5*18mm
[Introduction]：E21-900G30S is a pure hardware RF mid-power amplifier (PA) launched by Chengdu Ebyte Company, with a maximum output power of 1W, covering a frequency range of 850 ~ 931MHz. The module has a built-in LNA low-noise amplifier, which greatly improves wireless communication. Communication distance.
| Pin number | Pin name | Pin direction | Pin usage |
|---|---|---|---|
| 1 | VCC | Enter | Power supply, range 4.75～5.5V (5V is recommended, ceramic filter capacitor is recommended to be added externally) |
| 2 | GND | Enter | Ground wire, connected to the power reference ground |
| 3 | TX_EN | Enter | RF switch pin control; when transmitting, TX_EN is high and RX_EN is low |
| 4 | RX_EN | Enter | RF switch pin control; when receiving, RX_EN is high and TX_EN is low |
| 5 | GND | Input/ Output | Ground wire, RF reference ground |
| 6 | PIN | Input/ Output | Sending mode: RF signal input, receiving mode: RF signal output, impedance 50ohm |
| 7 | GND | Input/ Output | Ground wire, RF reference ground |
| 8 | GND | Input/ Output | Ground wire, RF reference ground |
| 9 | ANT | Input/ Output | Sending mode: RF signal output, receiving mode: RF signal input, impedance 50ohm |
| 10 | GND | Input/ Output | Ground wire, RF reference ground |