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Power amp handles GMSK, Edge modes

Posted: 04 Sep 2009     Print Version  Bookmark and Share

Keywords:Edge  power amplifier  3G  W-CDMA 

AWE6159 power amp

Anadigics Inc. is offering a quad-band polar Edge power amplifier (PA) module designed to meet the stringent performance requirements for GMSK and Edge modes in mobile devices.

The AWE6159 PA uses open-loop polar modulation schemes required by top-tier 3G chipset providers. Measuring 5mm x 5mm, it is 49 per cent smaller than Anadigics' previous generation of polar Edge PAs and delivers higher saturated output power levels.

"The new, much smaller AWE6159 includes an integrated power control for GMSK and Edge modes to allow easy conversion between these two modes. It's this key feature that successfully drove the adoption of our AWT6280 Edge PA into lakhs of handsets, smart phones and data devices," says Bruce Webber, director of marketing at Anadigics. "Many GSM operators have upgraded their networks, and Edge capability is being designed into forthcoming W-CDMA/HSPA mobile devices to provide the necessary compatibility."

The AWE6159 also includes separate amplifier chains to support GSM850/900 bands and for DCS/PCS bands, each optimised to deliver GMSK and 8-PSK modulated RF with superior efficiency and low harmonics. Plus, the AWE6159 adds voltage tracking circuitry to assure Output RF Spectrum meets requirements at low battery voltage conditions.

Joe DeMoura, product line director for Edge at Anadigics, said, "The highly integrated AWE6159 directly addresses the needs of the 3G marketplace by delivering the higher saturated output power levels required for multi-mode devices, together with the linearity required for spec-compliant performance from top-tier 3G chipsets. The 49 per cent size reduction significantly decreases board area while the lower battery current meets the growing efficiency requirements of 3G devices to preserve battery life and extend talk/data time."

Samples of the AWE6159 are available now.

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