18 February 2011

Avago linear PA enables WiMAX to coexist with other radios in portable devices

Avago Technologies Ltd, a supplier of analog interface components for communications, industrial and consumer applications, has launched a new linear power amplifier module for mobile and fixed-wireless data WiMAX applications that include WiFi and other cellular radios.

The new MGA-22103 module features an aggressive gain shape that limits the noise injected into radio receivers co-located in the same device, enabling WiMAX to coexist with WiFi, GPS, PCS and other radios in handsets, tablets, USB dongles and other portable electronics.

Covering a frequency range of 2.5–2.7GHz and including fully integrated RF matching, Avago says that the new linear power amplifier is cost-effective and meets industry-standard Spectral Emission Mask (SEM) tests operating at 3.3V. These features are integrated in a compact 3mm x 3mm x 1mm package, allowing designers to achieve standards-compliant performance in space-constrained designs.

Leveraging Avago’s proprietary GaAs enhancement-mode pHEMT technology, the MGA-22103 module can be used for most high-linearity applications. With what is claimed to be superior performance across a range of voltage and operating temperature levels (–40ºC to +85ºC), the module exhibits flat gain and good matching while providing linear power efficiency to meet stringent mask conditions. The module meets the IEEE 802.16 WiMAX mask at over 25dBm power, with high gain of 35dB across the band. Additionally, a low-power mode allows operation at about 80mA when only minimal power is required.

The MGA-22103 linear power amplifiers are priced at $2.20 each in 10,000 piece quantities. The module is available as part of the Sequans SQN1210 reference design for USB dongles.

Tags: Avago

Visit: www.avagotechwireless.com

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