Ikanos Communications has begun sampling its second generation VDSL2 (G.993.2) chipsets, the SmartLeap 9402 and the SmartLeap 9450, designed for high-density line cards for VDSL and VDSL2-based Broadband Access Concentrators, Remote Units, mini-RAMs, and ATM or IP DSLAMs. The company’s first generation VDSL2 chipsets, which were introduced in December 2004, were the industry’s first announced VDSL2-compliant solutions for central office, remote terminal, and MxU equipment. The new chips offer significantly higher port density and transmit launch power. The new chipsets remain compatible with existing VDSL and ADSLx customer premises equipment, enabling equipment vendors to reduce development time and costs by building a single system for all worldwide VDSL applications.
Ikanos is positioning its VDLS2 silicon for Triple Play residential broadband services. The SL9402 and SL9450 chipsets support up to 60 Mbps of downstream bandwidth and up to 30 Mbps of upstream bandwidth. The company said major IPTV rollouts in the U.S. market are expected to bring fiber to within 3,000ft of customer homes, giving VDSL2 a clear bandwidth advantage over other DSL implementations.
VDSL2 compliant features of the new chipsets include Trellis coded modulation, Seamless Rate Adaptation, Dynamic Rate Repartitioning, Bitswap, Profile, programmable framing, fast start-up and variable tone spacing. Connectivity at up to 15,000 feet is supported.
The SL9402 consists of an 8-port Burst Mode Engine (BME) with integrated IP and ATM capabilities, a quad-port analog front end, and dual-port integrated front end (IFE) that support up to 17.5dBm of transmit power. The SL9402 consists of an 8-port Burst Mode Engine (BME) with integrated program memory, which reduces the occupied board area and BOM costs. Both could be used in 72-port line cards. Both devices are currently sampling and production quantities are expected to be available in August 2005. The chipsets are listed at $15 to $20 per port based on volume.
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