Overview
The SX1308P915GW is a digital baseband chip designed by Semtech Corporation, specifically tailored for LoRa® gateway applications in the ISM bands worldwide. This chip is part of the LoRa Core PicoCell Gateway series and is configured for the 915MHz frequency band. Although the SX1308P915GW has reached its End of Life, it remains a significant component in existing LoRaWAN® infrastructure.
Key Specifications
| Specification | Value |
|---|---|
| Frequency Band | 915MHz |
| Sensitivity | Up to -139dBm with SX1257 or SX1255 Tx/Rx front-end |
| CW Interferer Rejection | 70dB at 1MHz offset |
| CCR (Carrier to Code Rate) | Up to 9dB |
| Demodulators | 49x LoRa demodulators and 1x (G)FSK demodulator |
| Radio Front-end Interfaces | Dual digital Tx & Rx radio front-end interfaces |
| Demodulation Paths | 10 programmable parallel demodulation paths |
| Operating Temperature | -40°C to +85°C |
| Power Consumption (Typical) | 330 mA (Rx mode with 8 channels ON), 230 mA (Tx mode at 20 dBm) |
Key Features
- Able to operate with negative SNR
- Dynamic data-rate adaptation (ADR)
- True antenna diversity or simultaneous dual-band operation
- 32MHz Ref Clock: TCXO
- PCB Layers: 4
- Tx Out Power: 22dBm
Applications
- Smart Metering
- Security Sensors Network
- Agricultural Monitoring
- Internet of Things (IoT)
- Advanced Metering Infrastructure (AMI) Network Systems
- Gas and Water Metering
- Environmental Monitoring
Q & A
- What is the SX1308P915GW used for?
The SX1308P915GW is used in LoRaWAN® gateways, particularly for applications in the 915MHz frequency band.
- What are the key specifications of the SX1308P915GW?
Key specifications include a sensitivity of up to -139dBm, 70dB CW interferer rejection at 1MHz offset, and the ability to operate with negative SNR. It also features 49x LoRa demodulators and 1x (G)FSK demodulator.
- What is the operating temperature range of the SX1308P915GW?
The operating temperature range is -40°C to +85°C.
- What are the typical power consumption values for the SX1308P915GW?
The typical power consumption is 330 mA in Rx mode with 8 channels ON and 230 mA in Tx mode at 20 dBm.
- What are some common applications of the SX1308P915GW?
Common applications include Smart Metering, Security Sensors Network, Agricultural Monitoring, and Internet of Things (IoT) solutions.
- Is the SX1308P915GW still in production?
No, the SX1308P915GW has reached its End of Life. For new designs, it is recommended to use the SX1302CSSXXXGW1.
- What is the frequency band supported by the SX1308P915GW?
The SX1308P915GW is configured for the 915MHz frequency band.
- Does the SX1308P915GW support antenna diversity?
- How many demodulation paths does the SX1308P915GW support?
- What is the typical Tx output power of the SX1308P915GW?
