FEM for ZigBee-based smart energy and ISM applications
27 July 2010
RFMD and Ember accelerate time-to-market with a complete reference design.
The RF6525 FEM meets or exceeds the system requirements of ZigBee applications operating in the 2.4 GHz - 2.5 GHz frequency band and supports multiple applications, including smart energy/advanced metering infrastructure (AMI), home area network (HAN), wireless ZigBee home automation, portable battery powered equipment, and general 2.4 GHz ISM band systems.
Designed in collaboration with Ember Corporation to create the RF6525/EM357 reference design, RF6525 integrates a +20dBm PA with a Tx harmonic output filter in the transmit path, and a low noise amplifier (LNA) with bypass mode in the receive path. The RF6525 also includes a low insertion loss, high isolation, double-pole double-throw (DPDT) diversity transfer switch and a two-port 50 ohm Rx/Tx integrated balun that simplifies matching and provides balanced input and output signals for both the Tx and Rx paths.
The RF6525 is suitable for ZigBee systems operating with high efficiency requirements and a minimum output power of 20 dBm. In the receive path, the Rx chain provides 11.5 dB of typical gain with only 7 mA of current and a noise figure of 2.5 dB. The high level of integration and form factor of the RF6525 (3.5mm x 3.5mm x 0.5mm) minimise end customer product footprint and reduce assembly costs and external discrete component count. The complete reference design approach, pairing RFMD's RF6525 FEM with Ember's EM357, shortens customer design time and accelerates time-to-market, while delivering performance.
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