US : ANADIGICS has expanded its successful line of HELP3™ WCDMA power amplifiers (PAs) with a new dual-band design. The AWT6221 combines North American cellular and PCS bands in a single 3 x 5mm package incorporating field-proven efficiency advantages of ANADIGICS HELP3™ technology. The AWT6221 is designed for both US 3G handsets and world-phones. Through the integration of two independent PA chains, the tiny AWT6221 delivers uncompromised performance in both frequency bands and conserves printed-circuit board area.

Leveraging ANADIGICS' proprietary HELP3™ technology, the AWT6221 dramatically reduces average current consumption by 75%, which translates to up to 25% increase in talk-time. ANADIGICS' HELP3™ PAs like AWT6221 use the Company's exclusive InGaP-Plus™ technology, which integrates bipolar and field-effect transistor (FET) devices on the same InGaP GaAs die. Through selectable bias modes, the HELP3™ PAs achieve optimal efficiency across the low-range and mid-range output power levels. The intelligent bias circuit of AWT6221 reduces current consumption to 8mA at low power levels - the world's best.

"ANADIGICS has leveraged its extensive RF technology and design differentiation to deliver multi-band 3G HSPA power amplifiers with best-in-class performance and size," said Dr. Ali Khatibzadeh, Senior Vice President and General Manager of Wireless Products at ANADIGICS. "The AWT6221 sets a new industry benchmark in performance and size for WCDMA power amplifiers and extends ANADIGICS leadership in 3G RF PA market."

The AWT6221 dual-band PA from ANADIGICS offers superior integration by combining North American cellular and PCS bands in a small 3 x 5 mm package. As a result, using the HSDPA compliant device saves 53% PCB space when compared with implementations using two single-band 4 x 4 mm PAs. The chip includes built in voltage regulator functionality, which eliminates the need for external