introduced the SX1272, the first product in a new
long-range RFIC platform that boosts the transmission range of the devices to
up to 15 kilometers (km).
integrates Semtechís new LoRa (long range) modulation technology to enable
drastic range improvements over alternative modulation methods. The
maximum distance today of a smart meter transceiver in Europe utilizing FSK modulation is between
one and two kilometers. The SX1272, utilizing LoRa operating under the
same conditions and regulatory limits, can transmit more than 15 km.
is designed for industrial control, agriculture/irrigation, smart metering and
sensor network applications. The additional range provided by LoRa will
eliminate the need for repeaters in these applications, significantly
simplifying the system design and lowering the total cost of deployment.
The range extension provided by LoRa also makes the device ideal for emerging
smart city, Internet of things (IOT) and machine-to-machine (M2M) applications.
achieves receiver sensitivity up to -137 dBm utilizing a low-cost
crystal. This compares to todayís state-of-the-art FSK devices that can
achieve sensitivity of -115 dBm with a comparable crystal or -125 using an
expensive temperature controlled crystal oscillator (TCXO).
the SX1272 has a 25 dB improvement over FSK devices for rejecting in-band
interfering signals. This makes the device especially effective in
industrial, scientific and medical (ISM)-band applications such as security and
metering because it provides immunity from sub-GHz frequency 4G/LTE signals.
supports GFSK, FSK, GMSK, and OOK modulation in addition to LoRa and is
designed to support WMBus, IEEE 802.15.4g (SUN), FCC 15.247, ARIB T96/108, EN
300-220 as well as other worldwide standards and regulations.
- +20 dBm maximum
- -137 dBm sensitivity
- Low current
consumption; 9.7 or 10.8 mA RX current; 100 nA sleep current
- 28 mA TX current at
- Bit rates up to 300
- -12.5 dBm IIP3
- 72 dB adjacent
- 66 dB image
- 1.8 to 3.7 V supply
- Ultra-fast frequency
802.15.4g(SUN), ARIB T96/108, and LoRa compatible
- ETSI, FCC, and ARIB
(order code: SX1272IMLTRT) is available immediately in production quantities.
Semtech offers comprehensive design assistance, including field- and
factory-based support. Data sheets, volume pricing, and delivery quotes, as
well as evaluation kits and samples, are available at www.semtech.com/info.