Electronic Products & Technology

Power amplifiers for mobiles


Electronics CEL

ANADIGICS, Inc. introduced a series of new HELP4 WCDMA single-band power amplifiers (PAs) -- the AWT66xx family -- designed for the industry's most popular 3G mobile devices running on the WCDMA (Wideband Code Division Multiple Access) standard.

This HELP4 WCDMA family includes the AWT6621, AWT6622, AWT6624, AWT6625 and AWT6628 PAs, each designed for specific wireless bands.

The fourth generation of HELP (High-Efficiency-at-Low-Power) PAs are ideal for a broad spectrum of mobile device applications as they deliver maximum efficiency at various power levels, including a 50-percent reduction in current consumption where mobile devices operate most frequently. They also enable up to 75-percent longer battery life, resulting in significantly longer talk time in handsets.

With the proliferation of technologies like HSPA+, which improve wireless network performance, the global 3G WCDMA market remains the most pervasive 3G system globally. According to the GSA (Global mobile Suppliers Association), 3G/WCDMA is the leading 3G system globally with commercial service in 135 countries. 97% of WCDMA operators have commercially launched HSPA. Yet mobile broadband downlink and uplink speeds using HSPA are evolving. The Network Update reports on 80 operator commitments to deploy HSPA+ including 41 commercial systems launched in 26 countries.

Key Product Facts and Highlights:


ANADIGICS works with the industry’s leading chipset manufacturers in the development of the HELP4 WCDMA family to provide the highest level of flexibility, integration and ease-of-use to mobile handset designers.
The ANADIGICS AWT6621, AWT6622, AWT6624, AWT6625 and AWT6628 each include high-performance directional couplers in a 3 X 3 X 1 (mm) footprint.
Each device is HSPA and HSPA+ compliant for the highest data levels.
Each offer three mode states to achieve high power-added efficiencies at several power levels during the phone operation.
These products also enable low quiescent current and low leakage current in shutdown mode.

Specific Applications:

AWT6621: Band 1 (IMT) WCDMA/HSPA wireless devices; Band Class 6 CDMA/EVDO wireless devices
AWT6622: Band 2 (PCS) WCDMA/HSPA wireless devices; Band Class 1 (PCS) CDMA/EVDO wireless devices
AWT6624: Band 4 (along with Band 3 and Band 9) WCDMA/HSPA wireless devices; AWS/KPCS CDMA/EVDO wireless devices
AWT6625: Band 5 (Cell) WCDMA/HSPA wireless devices; Band Class 0 CDMA/EVDO wireless devices
AWT6628: Band 8 (EGSM) WCDMA/HSPA wireless devices


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