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Power-Efficient Crosspoint Switch

Tue, 09/04/2007 - 5:09am

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national2_512_WEB.jpge_arrows.jpgNational Semiconductor Corporation’s low-voltage differential signaling (LVDS) 4 x 4 crosspoint switch delivers the industry’s best jitter performance (10 ps typical) at data transmission rates up to 3.125 Gbps, according to the company. The DS25CP104 is suitable for clock and data switching/routing in telecom, professional video, storage, and automated test equipment (ATE) applications. The device offers a feature set to enhance signal integrity in demanding applications such as XAUI (telecom) and SMPTE 424M (pro video). For example, the product consumes only 122 mW per channel while boosting and equalizing field-programmable gate array (FPGA) or applications-specific integrated circuit (ASIC) signals over cables and FR-4 backplanes. The device inputs have a wide common-mode voltage range that allows it to accept low-voltage positive emitter coupled logic (LVPECL), current-mode logic (CML), and LVDS signal levels without using coupling capacitors. The system designer has maximum flexibility configuring the DS25CP104 with external pin control or a serial System Management (SM) Bus. The crosspoint also features 8 kV electrostatic discharge (ESD) protection and 100 Ohm termination on the LVDS input and output pins to minimize insertion losses, component count and board space. The DS25CP104 (3.125 Gbps) is available now in 40-pin LLP packages and are priced at $8.75 in 1,000-unit quantities.
National Semiconductor Corporation
800-272-9959, www.national.com 

Click here for more information http://www.national.com/pf/DS/DS25CP104.html

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