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SoC is IEEE802.16-2004- compliant

Posted: 27 Apr 2005 ?? ?Print Version ?Bookmark and Share

Keywords:fujitsu microelectronics? wimax? system-on-chip? soc? mb87m3400?

The new highly integrated WiMAX SoC from Fujitsu Microelectronics Asia Pte Ltd complies with the IEEE802.16-2004 standard and will enable the development of a new generation of WiMAX-compliant broadband wireless access (bwa) equipment, said a press release from the company.

According to the pres release, the MB87M3400 SoC sets the stage for both base station and subscriber station implementation, which will bring cost-efficient, high-quality, fixed broadband connectivity to Metro Area Network users, without the need for direct Line of Sight access to base stations from their remotely connected subscriber stations The new SoC is designed to enable deployment of BWA equipment for both base stations and subscriber stations in licensed or license-exempt bands below 11GHz.

"I believe the WiMAX technology will revolutionalize the broadband and telecommunications industry, and present new opportunities to bring wireless high-speed connectivity to even the most remote areas," said Michael Shih, VP of the Electronic Devices Group Asia, Fujitsu Microelectronics. "Especially in emerging markets where deploying wired broadband infrastructure is tedious and costly, WiMAX would be the ideal solution," Shih added.

The MB87M3400 uses an OFDM 256 (Orthogonal Frequency Division Multiplexing) PHY that supports channels from 1.75MHz up to 20MHz, and can operate in TDD or FDD modes, with support for all available channel bandwidths. A programmable frequency selection generates the sample clock for any desired bandwidth. When applying 64QAM modulation in a 20MHz channel and using all 192 sub-carriers, the SoC can sustain raw peak data speeds up to 75Mbps Uplink sub-channelization is also supported.

The new chip incorporates sophisticated processing power, including a powerful main RISC engine that implements the 802.16 upper-layer MAC, scheduler, drivers, protocol stacks and user application software. Also on board is a secondary RISC/DSP that functions as a co-processor, which executes lower-layer MAC functions, offloading processing from the upper-layer MAC and enhancing total performance. A multi-channel DMA controller handles high-speed transactions among agents on a high-performance bus.

The MB87M3400 also incorporates radio control and all required analog circuits, along with a comprehensive set of integrated peripheral functions. To ensure security, the MB87M3400 uses DES/AES/CCM encryption/decryption engines for the 802.16 MAC privacy sub-layer. The chip includes a memory controller, an Ethernet engine for interfacing to the network, and high-performance DAC/ADC for flexible baseband interface.

With pricing beginning at $45 each in 1,000-unit volumes, the MB87M3400 is housed in a 436-pin BGA package. A complete reference design, including all required software and hardware for a cost-effective system solution, is also available. The reference design is scheduled for certification by the WiMAX Forum.

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