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Semiconductor Today Magazine


13 June 2006


Avago's CoolPAM PA modules

Avago Technologies announced that its CoolPAM power amplifier modules have been incorporated in a reference design from an undisclosed W-CDMA chipset supplier. Handsets based on the design are expected to begin shipping around Q3/2006.

The reference design incorporates the company’s ACPM-7311 module for UMTS800 (Band 5, 824 to 849 MHz), the ACPM-7331 module for UMTS1900 (Band 2, 1850 to 1910 MHz) and the ACPM-7381 module for UMTS2100 (Band 1, 1920 to 1980 MHz) operation. Avago claims CoolPAM technology significantly reduces battery power consumption, allowing mobile handsets to run cooler without the additional design time or expense of a DC/DC converter. The reference design supports HSDPA (High Speed Downlink Packet Access) and W-CDMA (Wideband Code Division Multiple Access) UMTS (Universal Mobile Telecommunications System)/GSM (Global System for Mobile Communication)/GPRS (General Packet Radio Service)/EDGE (Enhanced Data Rates for GSM Evolution) networks.

CoolPAM W-CDMA devices are supplied in a 4 mm by 4 mm by 1.1 mm, 10-pin surface-mount module designed for high thermal conductivity. They are fabricated with an advanced InGaP (indium gallium phosphide) HBT (heterojunction bipolar transistor) MMIC technology. The modules can operate at 3.2 to 4.2 volts for compatibility with low-current consumption designs. They incorporate 50-ohm input and output matching networks for simple integration, and are equipped with a control pin that sets operating parameters for highest efficiency when operating at low output power levels.

According to the company, CoolPAM power amplifiers offer the lowest average operating current in the industry. All versions are compatible with HSDPA. The ACPM-7381, ACPM-7331, and ACPM-7311 CoolPAM power amplifier modules are priced at $1.85 in 10,000-unit quantities.

Visit: http://www.avagotech.com