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The ETRX3 series from Lemos/Telegesis features the EM357 and EM351 — the latest ARM® Cortex M-3 SOCs from Ember. ETRX3 series modules measure 19 mm x 25 mm for both standard and PA/LNA versions, which represents a 40% reduction in size compared to the ETRX2 module. They will be available with either an on board antennae or a Hirose U.FL connector to allow connection of external antennae. A link budget of 105 dB on the standard ETRX3 module gives excellent performance and RF power can be further boosted by use of the ETRX3-LR which adds an extra LNA+PA boosting the link budget to 123dB. The ETRX3 series are low power 2.4 GHz ZigBee modules integrating a 2.4 GHz, IEEE 802.15.4 compliant transceiver with up to 192k of flash, 12k of RAM, and many advanced peripherals.


Danny Lemos