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
| Manufacturer | Semtech Corporation |
| Packaging | Tape & Reel (TR) |
| Part Status | Active |
| Type | TxRx Only |
| RF Family/Standard | 802.15.4 |
| Protocol | LoRa™ |
| Modulation | FHSS, FSK, OFDM, O-QPSK |
| Frequency | 860MHz ~ 1.02GHz |
| Data Rate (Max) | 300kbps |
| Power - Output | 20dBm |
| Sensitivity | -137dBm |
| Memory Size | - |
| Serial Interfaces | SPI |
| GPIO | 6 |
| Voltage - Supply | 1.8 V ~ 3.7 V |
| Current - Receiving | 10.5mA ~ 11.2mA |
| Current - Transmitting | 18mA ~ 125mA |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 28-VQFN Exposed Pad |
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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860 MHz To 1020 MHz Low Power Long Range Transceiver , 28-VQFN Exposed Pad RF IC Images
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