DRF1272F

Revision 1.01

Page

of 6

Aug. 2015

1

DRF1272F

20dBm LoRa Long Range RF Front-end Module

V1.01

Features:

Applications



Frequency Range: 868MHz

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Modulation: FSK/GFSK/MSK/LoRa

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SPI Data Interface

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Sensitivity: -137dBm

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Output Power: +20dBm

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Data Rate: <300 kbps

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127dB dynamic Range RSSI

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Excellent blocking immunity

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Preamble detection

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Automatic RF sense and CAD monitor

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Built-in bit synchronizer for clock recovery

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Packet engine up to 256 bytes with CRC

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Working Temperature: -40°C ~+80°C

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Build-in temperature sensor

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Standby current: ≤ 1uA

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Supply voltage: 1.8~3.6V

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Remote Control

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Smart metering

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Home Automation

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Personal data logger

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Wireless sensor network

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Remote keyless entry

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Wireless PC peripherals

DESCRIPTION

DRF1272F is a type of low cost RF front-end transceiver module based on SX1272 from Semtech

Corporation. It keeps the advantages of RFIC SX1272 but simplifies the circuit design. The high

sensitivity (-137dBm) in LoRa modulation and 20dBm high power output make the module

suitable for low range and low data rate applications.

DRF1272F module consists of RFIC SX1272, thin SMD crystal and antenna matching circuit. The

antenna port is well matched to standard 50 Ohm impedance. Users don’t need to spend time in

RF circuit design and choose suitable antennas for different applications. DRF1272F operates at

1.8~3.6V with extra low standby current which makes it suitable for battery powered-up

applications. Because DRF1272F is purely hardware module and it adopts ±10ppm crystal which

the resolution of it places a important role in calculating spreading factor, bandwidth, etc. Users

need to read the datasheet of SX1272 carefully in order to use the module in the best performance.