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Anadigics Inc. recently introduced its second generation of High-Efficiency-at-Low-Power (HELP) power amplifiers (PAs) for CDMA applications. Anadigics' HELP2 CDMA PAs provide industry-leading integration, while maintaining the world-class performance offered by first-generation HELP PAs. This level of integration and performance eliminates the requirements for external voltage regulation, reducing bill of materials cost and PCB space. Anadigics' 3 x 3 mm HELP2 CDMA PAs are footprint compatible with its 4 x 4 mm CDMA PAs, thereby reducing time-to-market for new designs.



The unique features and performance offered by Anadigics' HELP2 PAs are enabled by its exclusive InGaP-Plus technology, which integrates bipolar and FET structures on the same InGaP GaAs die. Anadigics' HELP2 PAs achieve industry-leading efficiency across different output power levels, specifically at low-range and midrange power levels where the PA typically operates, thereby dramatically increasing handset talk-time and standby-time.



Anadigics' family of HELP2 PAs includes the AWT6307 for the U.S. cellular band and the AWT6308 for U.S. PCS band. HELP2 PAs provide an exceptional efficiency of 20% at +16 dBm and 40% at +28 dBm. These new PA modules offer low quiescent currents of 16 mA and leakage currents of < 1 µA to further reduce power consumption and increase talk-time.



The new power amplifiers are offered in compact 3 x 3 x 1 mm modules and are designed for applications that require European Union's Restriction of Hazardous Substances (RoHS) solutions. The highly integrated AWT6307 and AWT6308 maintain pin-to-pin compatibility with existing 4 x 4 mm amplifiers, offering up to 50% space savings.

The AWT6307 and AWT6308 are priced at $1.29 in quantities of 10,000 units. Samples are available now.



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