Renesas Technology Develops 2G/3G Dual-mode RF Transceiver IC

(Product News, 26 Feb 2008)

Renesas Technology Corp. has released its R2A60281LG, a 2G/3G dual-mode radio frequency (RF) transceiver IC that supports both 2G and 3G modes used in cellular communications. The device integrates in a single chip most of the high-frequency signal processing functions required by mobile phone handsets. The RF transceiver IC performs functions such as converting received wireless signals to a lower frequency for use by the baseband processor. Forming an essential part of the transceiver block of the mobile phone, the R2A60281LG will facilitate the development of smaller and thinner handsets with support for global mobile telephony standards.

The R2A60281LG implements A/D and D/A conversion functions formerly handled by an analog baseband processor. It includes a high-speed (maximum 312Mbps) digital interface function that enables high-speed exchange of I/Q and control data with a digital baseband processor.

Renesas Technology mass produces a 2G (GPRS/EDGE) quad-band (850MHz/900MHz/1.8GHz/1.9GHz) RF transceiver IC (5x5x1mm) and 3G (W-CDMA) triple-band (800MHz/1.7GHz/2GHz) RF transceiver IC (5x5x0.65mm), both of which feature compact, thin packages and are used in a variety of handset products. Now, in response to the above-mentioned demand, the company has combined these two types of RF transceiver IC in a single chip. The R2A60281LG ultracompact 2G/3G dual-mode RF transceiver additionally supports the 1.5GHz band under the specifications newly standardized by the Third Generation Partnership Project (3GPP). The device incorporates a filter supporting CDMA2000 that attenuates wavelengths outside the desired frequency band in order to reduce susceptibility to radio interference.

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