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GPS front-ends pack high-rejection FBAR filters

Posted: 07 Apr 2010 ?? ?Print Version ?Bookmark and Share

Keywords:GPS? front-end? LNA? FBAR filter?

ALM-2712 front-end modules

Avago Technologies has released the ALM-2712 front-end module, which integrates pre- and post-high rejection FBAR filters to provide low insertion loss in GPS band frequencies. The device also includes optimum out of band rejection at cellular, DCS/PCS and WLAN band frequencies, making it well-suited for use in simultaneous GPS, voice and data operations in mobile handsets.

By integrating the LNA, pre- and post high-rejection FBAR filters, and other RF matching components into the module, the ALM-2712 does not require any external RF matching components. As a result, it helps customers to simplify the design process, and reduce board space and component count in their applications. Moreover, the ALM-2712 has a built-in shunt inductor at the RF input pin to enhance ESD production, which allows the device to survive more than 3kV of Human Body Model ESD charge at the RF input pin.

Avago's ALM-2712 GPS module is housed in a miniature 3mm x 2.5mm x 1mm MCOB package and is intended for use in space constrained applications. At a typical operating condition of 2.7V and 7.5mA, this GPS front-end module effectively leverages Avago's 0.25?m GaAs enhancement-mode pHEMT process and its proprietary FBAR filtering technologies, to deliver a 1.26dB noise figure, 14.2dB gain, and +5dBm input third order intercept point (IIP3) and 89dBc/80dBc/72dBc of out of band rejection at cellular, DCS/PCS and WLAN band frequencies.

Pricing for the ALM-2712 is $1.44 each in 10,000-piece quantities. Samples and production quantities are available through Avago's direct sales channel and worldwide distribution partners.

- Ismini Scouras

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