Silicon Labs Telegesis ETRX35x ZigBee Modules

Silicon Labs Telegesis ETRX35x ZigBee Modules are low power 2.4GHz devices with an added frontend module (SiGe SE2432L) containing both PA and LNA for the highest possible link budget. These 3rd and 4th generation modules have been engineered to be easily integrated into any device. The ETRX35x series from Silicon Labs enables users to add powerful wireless networking capability to products and quickly bring them to market by utilizing a premier EmberZNet ZigBee® stack.


  • Small form factor, SMT module 25mm x 19mm
  • Side Castellations for easy soldering and inspection
  • 2 antenna options
    • Integrated chip antenna
    • U.FL coaxial connector
  • ARM® Cortex-M3 based family of ZigBee modules
  • JTAG programming and real-time network-level debugging via the Ember InSight port
  • Lowest deep sleep current of sub 1μA and multiple sleep modes
  • Wide supply voltage range (2.1 to 3.6V)
  • 32.768kHz watch crystal can be added externally
  • Radio Features
    • Based on the Ember EM351 and EM357 single chip ZigBee / IEEE802.15.4 solutions
    • 2.4GHz ISM Band
    • 250kbit/s over the air data rate – NB: actual usable data throughput with ZigBee is about 20kbps
    • 15 channels (IEEE802.15.4 Channel 11 to 25)
    • SiGe SE2432L integrated PA and LNA
    • +20dBm output power (adjustable down to -41dBm)
    • High sensitivity of -106dBm typ. @ 1% packet error rate
    • 33mA RX current
    • Approx, 140mA at 20dBm TX current
    • Robust Wi-Fi and Bluetooth coexistence


  • AMR – ZigBee smart energy applications
  • Wireless alarms and security
  • Home/building automation
  • Wireless sensor networks
  • M2M industrial controls
  • Lighting and ventilation control
  • Remote monitoring
  • Environmental monitoring and control
Published: 2016-07-11 | Updated: 2022-03-11