SX1276IMLTRT

The SX1276/77/78 transceivers are mainly based on LoRaTM remote modems for ultra long-range spread spectrum communication with high immunity to interference and minimize current consumption. With the patented LoRaTM patented modulation technology, the SX1276/77/78 achieves high sensitivity of over -148dBm with low cost crystals and materials. In addition, the high sensitivity and +20dBm power amplifier integration makes these devices' industry-leading level，link budgets the best choice for long-haul transmission and reliability-critical applications. Compared with the traditional modulation technology, LoRaTM modulation technology also has obvious advantages in anti-blocking and selectivity, which solves the problem that the traditional design scheme can not balance the distance, anti-interference and power consumption at the same time.

These devices also support high-performance (G)FSK modes for systems such as WM-Bus and IEEE802.15.4g. Compared with similar devices, the SX1276/77/78 significantly optimizes phase noise, selectivity, receiver linearity, and third-order input intercept point (IIP3) Variousper formance based on a significant reduction in current consumption.

LoRaTM modem

Maximum link budget up to 168dB

+20dBm–100mW When the voltage changes Constant RF power output

+14dBm high efficiency power amplifier

Programmable bit rate up to 300kbps

High sensitivity: as low as -148dBm

High reliability front end: IIP3=-11dBm

Excellent anti-blocking properties

9.9mA low receive current, 200nA register hold current

Fully integrated frequency synthesizer with 61Hz resolution

Support FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation methods

Built-in bit synchronization for clock recovery preamble detection

127dB RSSI dynamic range

Automatic RF signal detection, CAD mode and ultra-high speed AFC

Packet engine with CRC, up to 256 bytes

Built-in temperature sensor and low battery indicator

application:

Automatic meter reading

Home and building automation

Wireless alarm and security system

Industrial monitoring and control

Remote irrigation system