Greensboro, N.C. RF Micro Devices, Inc. has announced the availability of its RF6280 3G transmit system that is designed to simplify and accelerate implementation of multi-band and multi-mode 3G handsets and mobile device platforms.
The RF6280 3G transmit system supports all major WCDMA frequency bands and is comprised of a front-end power management IC optimized for use with either one or two available power amplifier (PA) options: the RF6281 and/or the RF6285. The RF6281 is a dedicated single-band power amplifier module (supporting Band I), and the RF6285 is a flexible dual-path, multi-band power amplifier module (capable of supporting Bands I, II, III, IV, V, VI, VIII, IX).
The centerpiece of the 3G transmit system is the RF6280 front-end power management IC, which combines a low-noise, high-efficiency DC/DC converter with embedded hardware control algorithms to enable best-in-class efficiency, enhanced performance and improved ease-of-use, said RFMD.
The RF6280 uses analog bias control and patent-pending DC-to-DC conversion technologies to intelligently and dynamically control PA operating conditions. Enabling mode-optimized PA efficiency and linearity performance, the RF6280 also ensures maximum efficiency across all power levels, data rates (voice-only to HSPA) and non-ideal load conditions (also known as "antenna mismatch"). This helps extend battery life and significantly reduces average thermal dissipation, said RFMD.
By leveraging the broadband characteristics of the dual-band RF6285, the 3G transmit system is said to simplify the implementation of multi-mode, multi-region 3G handset platforms. In addition, by leveraging a balanced (quadrature) PA architecture, the transmit system also provides improved total radiated power (TRP) and specific absorption rate (SAR) performance, eliminating the need for RF isolators and simplifying multi-band platform implementation.
In addition, the compact design of the RF6280 enables a significant reduction in the space requirements of a tri-band WCDMA solution, including filtering and front-end power management, as compared to competitive solutions, said RFMD. The RF6280, RF6281 and RF6285 all comply with the Restriction of Hazardous Substances (RoHS) Directive.
RFMD will showcase its portfolio of cellular front-end products at the 2008 GSMA Mobile World Congress in Hall 8, Stand 8B79.
Pricing: $5.00 in quantities of 10,000 for the RF6280 3G transmit system.
Product information: RF6280
RF Micro Devices, www.rfmd.com