860 MHz to 1020 MHz Low Power Long Range Transceiver SX1272IMLTRT, 28-VQFN Exposed Pad RF IC

GENERAL DESCRIPTION

The SX1272/73 transceivers feature the LoRaTM long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption. Using Semtech’s patented LoRaTM modulation technique SX1272/73 can achieve a sensitivity of over -137 dBm using a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20 dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness. LoRaTM also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption. These devices also support high performance (G)FSK modes for systems including WMBus, IEEE802.15.4g. The SX1272/73 deliver exceptional phase noise, selectivity, receiver linearity and IIP3 for significantly lower current consumption than competing devices.

KEY PRODUCT FEATURES

LoRaTM Modem

157 dB maximum link budget

+20 dBm at 100 mW constant RF output vs. V supply

+14 dBm high efficiency PA

Programmable bit rate up to 300 kbps

High sensitivity: down to -137 dBm w Bullet-proof front end: IIP3 = -12.5 dBm

89 dB blocking immunity

Low RX current of 10 mA, 100 nA register retention

Fully integrated synthesizer with a resolution of 61 Hz

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

Built-in bit synchronizer for clock recovery

Preamble detection

127 dB Dynamic Range RSSI

Automatic RF Sense and CAD with ultra-fast AFC

Packet engine up to 256 bytes with CRC

Built-in temperature sensor and low battery indicator

Product Information

APPLICATIONS

Automated Meter Reading

Home and Building Automation

Wireless Alarm and Security Systems

Industrial Monitoring and Control

Long range Irrigation Systems

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