GENERAL DESCRIPTION
Semtech’s SX1272/73 family provides ultra long range while maintaining low current consumption, making it optimal for numerous applications.
With Semtech’s patented modulation technique the device can achieve sensitivity of over -138.5 dBm using a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20 dBm power amplifier creates the highest link budget making it optimal for any application requiring range. This modulation technique also provides significant advantages in blocking and selectivity over FSK.

KEY PRODUCT FEATURES
158 dB maximum link budget
+20 dBm - 100 mW constant RF outputvs. V supply
+14 dBm high efficiency PA
Programmable bit rate up to 300 kbps
High sensitivity: down to -138.5 dBm
Bullet-proof front end: IIP3 = -12 dBm with FSK
100 dB blocking immunity
Low RX current of 10 mA, 200 nA register retention
Fully integrated synthesizer with a resolution of 61 Hz
FSK, GFSK, MSK, GMSK, LORA and OOK modulations
Built-in bit synchronizer for clock recovery
Sync word recognition
Preamble detection
115 dB+ Dynamic Range RSSI
Automatic RF Sense with ultra-fast AFC
Packet engine up to 64 bytes with CRC
Built-in temperature sensor and low battery indicator