Telecoms, Datacoms, Wireless, IoT


WiFi front end module

13 October 2010 Telecoms, Datacoms, Wireless, IoT

RFMD’s highly integrated new RF5365 FEM (front end module) satisfies the need for size reductions for typical 802.11b/g front-end designs and reduces the number of components outside the core chipset.

The device integrates a 802.11b/g power amplifier with a single-pole, three-throw (SP3T) switch for 2,4 GHz to 2,5 GHz ISM band applications. By integrating SP3T switch functionality, the RF5365 is able to route WLAN and Bluetooth receive/transmit signals to two system-on-chip (SOC) transceivers, accommodating a common implementation in high-performance consumer electronics and handset/handheld WiFi applications. The SP3T switch can also act as a splitter to transmit or receive Bluetooth and WLAN signals simultaneously.

The FEM’s 802.11b/g power amplifier delivers 18 dBm of linear output power for higher efficiency and lower EVM for 802.11n applications. Additionally, integrated 2170 MHz filtering and harmonic attenuation reduce the need for a high loss/attenuation filter at the FEM output, increasing output power at the antenna. An integrated Rx balun eliminates requirements for tuning components between the FEM and the SoC, and a direct-to-battery connection eliminates the need for additional DC circuitry. Finally, an integrated power detector increases immunity to power supply, temperature and VSWR fluctuations and improves the accuracy of the part’s closed loop power control. The RF5365 is fully tested and packaged in a 2,5 x 2,5 mm QFN package.

For more information contact Andrew Hutton, RF Design, +27 (0)21 555 8400, [email protected], www.rfdesign.co.za



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