Fujitsu bases VoIP phone IC on a customized DSP engine from ARC International
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Fujitsu bases VoIP phone IC on a customized DSP engine
By EE Times
May 1, 2003 (3:18 p.m. EST)
URL: http://www.eetimes.com/story/OEG20030501S0060
Sunnyvale, Calif. - The IP-Phone voice-over-Internet Protocol chip from Fujitsu Microelectronics America Inc. includes a customized DSP engine, VoiceDSP, based on a core from ARC International plc (Elstree, England). The DSP engine is integrated with a RISC coprocessor to provide hardware acceleration, and with an Ethernet switch, memory controller and peripheral functions. Target applications for the VoIP chip include Internet telephony and media-termination adapter applications for small office/home office and other cost-sensitive applications. Its architecture is scalable to support future applications, the company said. Keith Horn, vice president of marketing, said the chip was designed to overcome processing, power and cost "deficiencies" in competing products. "Carrier suppliers could only choose among standard products designed for general-purpose applications," he said. "Voice-DSP leverages our system-on-chip technology and proven [intellectual-property] blocks to meet our customers' specific requirements." The chip runs as a custom DSP with two multiplier-accumulators and a matrix processor, supporting multichannel speech vocoders and telephony functions. Fujitsu's IP-Phone chip is built in a 0.18-micron process. It includes a 3.3-volt I/O with a 1.8-V core and JTAG interface in a 256-pin quad flat pack. Pricing starts at $12 in 10,000-unit quantities. The reference design board and associated software are available now. Call (858) 521-4260
www.fma.fujitsu.com/asic
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