The AWU6604 HELP3 TM PA is a 3rd generation WCDMA product for UMTS handsets. This PA incorporates ANADIGICS' HELP3TM technology to provide low power consumption without the need foranexternalvoltageregulator.A"daisychainable" directional coupler is integrated in the module thus eliminating the need of external couplers. The deviceismanufacturedonanadvancedInGaPHBT MMIC technology offering state-of-the-art reliability, temperaturestability,andruggedness.Therearetwo selectable bias modes that optimize efficiency for differentoutputpowerlevels,andashutdownmode withlowleakagecurrent,whichincreaseshandsettalk and standby time. The self-contained 3 mm x 3 mm x 1 mm surface mount package incorporates matching networksoptimizedforoutputpower,efficiency,and linearityina50 system.