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E28-2G4M27S
Product Introduction: Semtech's SX1280 RF chip includes various physical layers and modulation methods, such as LORA, FLRC, GFSK. The special modulati
Product details
| RF parameters | Parameter values |
Remarks |
| operating frequency band |
2400~2500 MHz | Support ISM frequency band |
| transmit power | 27 dBm | Maximum power (approximately 500mW) |
| receiver sensitivity | -132 dBm |
Airspeed 595kbps |
| air rate |
LoRa(bps)：0.595k~253.9k FLRC(bps)：260k~1.3M GFSK(bps)：125k~2M |
User programmable customization |
| measured distance | 8000 meters | Clear and spacious, antenna gain 5dBi, antenna height 2.5 meters, airspeed 1kbps |
| Hardware specifications | Parameter values |
Remarks |
| size |
26.5 * 15 mm | - |
| antenna form | IPEX/PCB | Equivalent impedance is about 50 Ω |
| communication interface | SPI |
0～10Mbps |
| packaging method | patch | - |
| Electrical parameters | minimum | typical value | maximum | unit | condition |
| power supply voltage |
2.5 | 3.3 | 3.6 | V | ≥ 3.3V ensures output power |
| Communication level | - | 3.3 | - | V | There is a risk of burning out when using 5V TTL |
| Emission Current | - | 580 | - | mA | Instantaneous power consumption |
| Receiving Current | - |
14.5 | - |
mA |
- |
| quiescent current | - | 2.0 | - | μA | Software shutdown |
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Operating Temperature |
-40 | - |
+85 | ℃ | Industrial-grade design |
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Operating Humidity |
10 | 60 |
90 | % | - |
|
Storage temperature |
-40 | 20 |
+125 | ℃ | - |
| serial number |
pin | Pin direction |
Remarks |
| 1 | VCC | - | Power supply, range 2.5~3.6V (it is recommended to add ceramic filter capacitors externally) |
| 2 | GND | - | Ground wire, connected to the power reference ground |
| 3 | MISO_TX |
output |
SPI data output pin; Can also be used as a transmitter pin for UART (see SX1280 manual for details) |
| 4 | MOSI_RX |
input |
SPI data input pin; Can also be used as a receive pin for UART (see SX1280 manual for details) |
| 5 | SCK_RTSN |
input |
SPI clock input pin; It can also be used for UART request transmission pin (see SX1280 manual for details) |
| 6 | NSS_CTS | input | Module chip selection pin, used to start an SPI communication; It can also be used to clear the transmission pin of UART (see SX1280 manual for details) |
| 7 | GND | - | Ground wire, connected to the power reference ground |
| 8 | RX_EN | input | LNA control pin, high level effective |
| 9 | TX_EN | input | PA control pin, high level active |
| 10 | GND | - | Ground wire, connected to the power reference ground |
| 11 | NRESET | input | Chip reset triggers input pin, low level is effective, built-in pull-up resistor 50k |
| 12 | BUSY | output | Used for status indication (see SX1280 manual for details) |
| 13 | DIO1 | input/output | Configurable universal IO port (see SX1280 manual for details) |
| 14 | DIO2 |
input/output |
Configurable universal IO port (see SX1280 manual for details) |
| 15 | DIO3 |
input/output |
Configurable universal IO port (see SX1280 manual for details) |
| 16 | GND | - | Ground wire, connected to the power reference ground |
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Product manual |
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Development testing |
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Introduction to Yibaite |
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JD.com: |
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[Contact email]: sales@cdebyte.com |
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| product model |
interface type | chip solution | Carrier frequency Hz | Transmission power dBm | Test distance in kilometers | air rate bps |
package form | Product size mm | Product Features | technology manual |
sample buy |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UART | SX1281 | 2.4G | 27 | 7 | 1k ~ 2M | patch | 40.5*25 | LoRa spread spectrum, high-speed continuous transmission | |||
| SPI | SX1280 | 2.4G | 27 | 8 | 0.125M~2M | patch | 15 * 26.5 | LoRa spread spectrum, FLRC， ranging | |||
| UART | SX1280 | 2.4G | 12.5 | 3 | 1k ~ 2M | patch | 17.5* 28.7 | LoRa spread spectrum, high-speed continuous transmission | |||
| SPI | SX1280 | 2.4G | 20 | 6 | 0.125M~2M | patch | 15 * 26.5 | LoRa spread spectrum, FLRC， ranging | |||
| SPI | SX1280 | 2.4G | 12.5 | 3 | 0.125M~2M | patch | 25*14 | LoRa spread spectrum, FLRC， ranging |
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E28-2G4T27SX
Product model: E28-2G4T27SX
interface type
:UART
chip solution
:SX1281
Carrier frequency Hz
:2.4G
Transmission power dBm
:27
Test distance in kilometers
:7
Air speed bps
-
:1k ~ 2M
package form
: Surface mount
Product size mm
:40.5*25
Product features: LoRa spread spectrum, high-speed continuous transmission
PDF ：
buy
E28-2G4M27S
Product model: E28-2G4M27S
interface type
:SPI
chip solution
-
:SX1280
Carrier frequency Hz
:2.4G
Transmission power dBm
:27
Test distance in kilometers
:8
Air speed bps
:0.125M~2M
package form
: Surface mount
Product size mm
:15 * 26.5
-
Product features: LoRa spread spectrum, FLRC， ranging
PDF ：
buy
E28-2G4T12S
Product model: E28-2G4T12S
interface type
:UART
chip solution
:SX1280
Carrier frequency Hz
:2.4G
Transmission power dBm
:12.5
-
Test distance in kilometers
:3
Air speed bps
:1k ~ 2M
package form
: Surface mount
Product size mm
:17.5* 28.7
Product features: LoRa spread spectrum, high-speed continuous transmission
PDF ：
buy
E28-2G4M20S
Product model: E28-2G4M20S
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