[Chip solution]：SX1262
[Communication distance]： 16km
[Product size]：24*38.5mm
[Product weight]：5.1g±0.1g
[Introduction]：E22-900M33S is independently developed based on the new generation LoRa radio frequency chip SX1262 produced by Semtech in the United States. It has a maximum power of 2W and is suitable for 868/915MHz patch-type LoRa wireless modules. It uses an industrial-grade high-precision 32MHz crystal oscillator. Compared with the previous generation LoRa transceiver, the anti-interference performance and communication distance have been improved, further widening the gap with products with FSK and GFSK modulation methods. This product can cover an ultra-wide applicable frequency range of 850 to 930MHz and is backward compatible with SX1278 and SX1276. Since this module is a pure radio frequency transceiver module, it needs to use an MCU driver or a dedicated SPI debugging tool.
| Main parameters | Performance | Remark | |
| Minimum value | Maximum value | ||
| Supply voltage (V) | 3.3 | 5.5 | Exceeding 5.5V will permanently burn the module |
| Blocking power (dBm) | - | 10 | Less likely to be burned if used at close range |
| Working temperature (℃) | -40 | 85 | Industrial grade |
| Main parameters | Performance | Remark | |||
| Minimum value | Typical value | Maximum value | |||
| Supply voltage (V) | 3.3 | 5 | 5.5 | ≥5.0V guaranteed output power | |
| Communication level (V) | - | 3.3 | - | Using 5V TTL risks burning out | |
| Working temperature (℃) | -40 | - | 85 | Industrial grade design | |
| Working frequency band (MHz) | 850 | 868/915 | 930 | Support ISM band | |
| Power consumption | Emission current (mA) | - | 1200 | - | ±100mA(33dBm&5V) |
| Receive current (mA) | - | 15 | - | - | |
| Sleep current (uA) | - | 2 | - | Software shutdown | |
| Maximum transmit power (dBm) | 32.5 | 33 | 33.5 | The output power of the RF chip cannot be greater than 9dBm | |
| Receiving sensitivity (dBm) | -134 | -135 | -136 | LoRaSF9 | |
| Main parameters | Description | Remark |
| reference distance | 16km | Sunny and open space, antenna gain 5dBi, antenna height 2.5 meters, air rate 0.3kbps |
| FIFO | 256Byte | Maximum length of a single send |
| Crystal frequency | 32MHz | - |
| Modulation | LoRa(recommended) | - |
| Packaging method | SMD type | - |
| Interface mode | 2.54mm | stamp hole |
| Communication Interface | SPI | 0～10Mbps |
| Dimensions | 38.5*24mm | - |
| Antenna interface | Stamp hole/IPEX | Equivalent impedance is about 50Ω |
| weight | 5.1g | ±0.1g |
