Matched High-Efficiency WLAN PA Powers Up 802.11b Reference Designs

Present day WLAN solutions require reduced Bill-Of-Material (BOM) costs, usually achieved through a high level of integra-tion. To address the cur-rent market needs, RF Micro Devices has added a 50-ohm input/out-put matched 802.11b WLAN power amplifier (RF5189) to its WLAN PA portfolio. It is a lin-ear, medium power, high efficiency amplifier designed for battery operated WLAN applica-tions such as PC cards, mini PCI and compact flash applications. The RF5189 requires only a few external discrete components for optimal performance, and it has on-chip power detec-tor circuitry for ease of use.