High-linearity Amplifiers Targeted at WiMAX and Next-Gen Cellular Networks

(Product News, 15 May 2008)

Avago Technologies has launched 1W and 2W families of high-performance power amplifiers designed for next generation cellular and WiMAX infrastructure applications. The ALM-31122, ALM-31222 and ALM-31322 families of 1W base station power amplifiers, available in an ultra compact size and with no RF matching requirements, offer high linearity and power added efficiency (PAE) at 400mA typical current consumption levels. These devices support cellular (GSM, CDMA, WCDMA, CDMA2000 and TD-SCDMA) and WiMAX frequencies.

Designed to support applications from 750MHz to 3.9GHz, the ALM-31x22 power amplifiers have built-in active bias circuitry and no RF matching components, simplifying product design and shorten time to market. Available in a 5x6x1.1mm, 22-pin molded chip-on-board package, the ALM-31x22 is ideal for compact pico or femto-cell base station applications.

At typical biasing conditions of 5V and 400mA, Avago's ALM-31122 delivers 31.6dBm of output power (P1dB), 47.6Bm of third order intercept point (OIP3) and 15.6dB gain at 900MHz. The ALM-31222 delivers an equally impressive performance of 31.5dBm P1dB, 47.9dBm OIP3 and 14.9dB gain at 2GHz; and the ALM-31322 delivers 31dBm P1dB, 47.7dBm OIP3 and 13.2dB gain at 3.5GHz.

Avago's family of 2W power amplifiers, the ALM-32220, also has built-in active bias and requires no RF matching components. Built to optimally support 1.7GHz to 2.7GHz applications, the 800mA current consumption for the ALM-32220 gives it a best in class ranking among similar devices on the market. The new power amplifier delivers 34.4dBm of output power (P1dB), 50dBm of OIP3 and 14.8dB gain at 2GHz. The ALM-32220 is housed in a 7x10x1.1mm, 20-pin molded-chip-on-board package.

Click here for more information on Avago's RF/Microwave Solutions

Click here for more information on Avago's ALM-31122 1W Amplifier

Click here for more information on Avago's ALM-31222 1W Amplifier

Click here for more information on Avago's ALM-31322 1W Amplifier

Click here for more information on Avago's ALM-32220 2W Amplifier

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