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4W power amp rolls for W-CDMA systems

Posted: 20 Dec 2006 ?? ?Print Version ?Bookmark and Share

Keywords:power amplifier? power amp? W-CDMA? WJ Communications? base station?

RF products supplier WJ Communications Inc. has announced the AP622, a 4W power amp module for W-CDMA infrastructure systems. This new device builds upon the company's AP60x family of 28V InGaP/GaAs HBT power amplifiers. The AP622, a highly integrated two-stage power amp, is suitable for the pre-driver and driver stages in W-CDMA base stations and power amp modules, and the output stage in repeaters.

"This product along with the recently launched AP60x series demonstrate our expertise in RF power amplifier design as well as InGaP HBT (GaAs) process technology," said Haresh Patel, SVP for sales and marketing at WJ Communications. "The AP622 offers extraordinary linearity performance and adjustable quiescent bias, providing designers the flexibility to meet challenging system requirements."

The AP622 operates from 2,110MHz to 2,170MHz and is housed in a RoHS-compliant 13-by-29-by-4.1mm flange-mount package. It has a P1dB of 35dBm, 28dB of power gain and ACLR of -55dBc at 23dBm power output for W-CDMA applications and operates from a 28V supply at 130mA operating current when configured for class AB operation.

The AP622 meets the requirements for high linearity, high power gain, low operating current, 28V supply voltage and design flexibility, all in a single package. It incorporates the same features as AP60x products, including active bias circuitry to achieve improved linearity and adjustable quiescent bias, while providing design flexibility for demanding system requirements.

A unique feature of AP622 is the fully matched 50-ohm input and output to simplify the design and PCB layout for wireless infrastructure equipment designs, said WJ Communications. It also enables designers to "plug and play" the module into their system designs, thus reducing the implement time and resources.

Pricing information is available directly from the company.

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