RF Transceivers
  • SX1272
  • Long Range, Low Power RF Transceiver 860-1000MHz with LoRa® Technology
  • SX1273
  • Long Range, Low Power RF Transceiver 860-1000MHz with LoRa™
  • SX1276
  • 137 MHz to 1020 MHz Low Power Long Range Transceiver
  • SX1277
  • 137 MHz to 1020 MHz Low Power Long Range Transceiver
  • SX1278
  • 137 MHz to 525 MHz Low Power Long Range Transceiver
  • SX1279
  • 137 MHz to 960 MHz Low Power Long Range Transceiver
  • SX1238
  • SX1238 - Fully Integrated Transceiver with +27dBm TX Power
  • SX1301
  • Base Band Processor for Data Concentrator for Long Range Communication Network
Semtech SX1236

Semtech SX1236

137 MHz to 1020 MHz Low Power Bi-Band Transceiver

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The SX1236 is a fully integrated ISM band transceiver capable of bi-band operation in most -licensed bands in the sub-GHz space with a minimum of external components. It offers a combination of high link budget and low current consumption in all operating modes. The 143 dB link budget is achieved by a low noise CMOS receiver front end and up to +20 dBm of transmit output power. A set of internal power amplifiers are provided permitting either fully regulated - for constant RF performance, or direct supply connection - for optimal efficiency.


  • 143 dB maximum link budget
  • +20 dBm - 100 mW constant RF output vs. V supply
  • +14 dBm high efficiency PA
  • Programmable bit rate up to 300 kbps
  • High sensitivity: down to -123 dBm
  • Bullet-proof front end: llP3 = -11 dBm
  • Excellent blocking immunity
  • Low RX current of 10.8 mA, 200 nA register retention
  • Fully integrated synthesizer with a resolution of 61 Hz
  • FSK, GFSK, MSK, GMSK and OOK modulation
  • Built-in bit synchronizer for clock recovery
  • Preamble detection
  • 127 dB Dynamic Range RSSI
  • Ultra-fast AFC
  • Packet engine up to 256 bytes with CRC
  • Built-in temperature sensor and low battery indicator


  • Automated Meter Reading
  • Home and Building Automation
  • Wireless Alarm and Security Systems
  • Industrial Monitoring and Control
  • Long range Irrigation Systems


  • QFN 28

Order Codes

  • SX1236IMLTRT - Pb-free, Halogen free, RoHS/WEEE compliant
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