LORA Module RC-SM1276-868 based on Semtech SX1276

Frequency Band : 868Mhz

It’s a SX1276 LoRa module with SPI interface. CE certified.

The RC-SM1276-868 module is designed based on SX1276. The SX1276 incorporates the LoRaTM spread spectrum modem which is capable of achieving significantly longer range than existing systems based on FSK or OOK modulation. At maximum data rates of LoRaTM the sensitivity is 8dB better than FSK, but using a low cost bill of materials with a 20ppm XTAL LoRaTM can improve receiver sensitivity by more than 20dB compared to FSK. LoRaTM also provides significant advances in selectivity and blocking performance, further improving communication reliability. For maximum flexibility the user may decide on the spread spectrum modulation bandwidth (BW), spreading factor (SF) and error correction rate (CR). Another benefit of the spread modulation is that each spreading factor is orthogonal - thus multiple transmitted signals can occupy the same channel without interfering. This also permits simple coexistence with existing FSK based systems. Standard GFSK, FSK, OOK, and GMSK modulation is also provided to allow compatibility with existing systems or standards such as wireless MBUS and IEEE 802.15.4g.

Datasheet

Ta = 25°C unless otherwise specified

Technical Characteristics	Min	Typ	Max	Unit
Supply Voltage	1.8		3.7	Volt
Supply Current RX mode LnaBoost OFF, band1		10.80		mA
Supply Current RX mode LnaBoost ON, band1		11.50		mA
Supply Current RX mode Bands 2&3		12.00		mA
Supply Current Sleep Mode		0.20	1	µA
Supply Current Idle Mode (RC Osc. enabled)		1.50		µA
Supply Current Standby Mode (Crystal enabled)		1.60		µA
Supply Current Transmit Mode RFOP=+20dBm		120		mA
RF Power Output(for LORA Modulation)			+19	dBm
RF Sensitivity (for LORA Modulation)		-139		dBm
Operating Range Temperature	-30		75	°C