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National Semiconductor's Quad LVDS Buffer-Repeaters Feature Industry’s Best Jitter Performance and ESD Protection

2.0 Gbps Buffer-Repeaters Feature Lowest Jitter Transfer, On-chip Termination and 15 kV of ESD Protection

Oct 9, 2006

October 9, 2006 – National Semiconductor Corporation (NYSE:NSM), a leading supplier of high-performance analog signal-path products, today introduced two new, low-jitter, signal-conditioning buffer-repeaters to its industry-leading portfolio of LVDS products.

National’s DS15BR400 and DS15BR401 four-channel LVDS buffer-repeaters provide all the features necessary for designing mainstream LVDS multi-cards or multi-boxes.  The devices operate from zero to 2.0 Gbps and feature 14 picoseconds of total jitter at 1.5 Gbps data rates.  In addition, the industry’s highest 15 kV of ESD protection ensures maximum protection for FPGAs, ASICs and other onboard components.  The DS15BR400 and DS15BR401 include configurable pre-emphasis and are well-suited for delivering clean LVDS signals across cables and backplanes found in a wide variety of electronic systems, including telecom, datacom, industrial, medical, automotive and office imaging applications.

Technical Features of the DS15BR400 and DS15BR401 Buffer-Repeaters
Offered in both 32-pin LLP® and 48-pin TQFP packages, the DS15BR400 drives up to four LVDS clock and/or data channels over common backplanes or cable configurations.  The wide differential input range easily interfaces to LVDS, low voltage positive emitter-coupled logic (LVPECL), or current-mode logic (CML) input levels and the output levels are fully LVDS compliant.  Configurable output pre-emphasis allows the designer to “overdrive” the outputs to compensate for a lossy interconnect.  In power-sensitive applications, the power-down per channel mode is useful in minimizing power consumption when all four channels of a single device are not active, as in redundancy applications.

The DS15BR400 has input and output terminations integrated to save board space and maximize signal conditioning.  The DS15BR401 has the same features and packaging options as the DS15BR400, but it does not include the integrated receiver termination, which allows it to be used as a multi-drop receiver.

For more information on the DS15BR400 and DS15BR401 or to order samples and an evaluation board, visit http://www.national.com/pf/DS/DS15BR400.html and http://www.national.com/pf/DS/DS15BR401.html.  For more information on National’s interface products, visit http://www.national.com/appinfo/interface/

About National’s LVDS Products
National Semiconductor's low-voltage differential signaling (LVDS) technology is a low-power, low-noise method for high-speed data transmission over copper interconnects.  LVDS solves current and future high-performance data transmission challenges in bandwidth-hungry applications by delivering data at gigabits per second at milliwatts of power.  National is the world’s largest supplier of high-speed LVDS products, according to Databean’s 2005 Analog IC Market Share survey.  National's LVDS products include interface line drivers and receivers, LVDS-LVDS signal conditioners, LVDS-LVDS switching/multiplexing/repeating functions, LVDS serializer/deserializers, FPD link display solutions and ADCs with high-speed digital interfaces.  For more information on National’s LVDS products, visit

Pricing and Availability
Available now, the DS15BR400 and DS15BR401 cost $4.33 each in quantities of 1,000. 

Note to editors:  To view a high-resolution downloadable photo of these products, visit National's photo gallery at http://www.national.com/company/pressroom/gallery/network.html.

About National Semiconductor
National Semiconductor, the industry's premier analog company, creates high-value analog devices and subsystems.  National's leading-edge products include power management circuits, display drivers, audio and operational amplifiers, interface products and data conversion solutions. National's key analog markets include wireless handsets, displays and a variety of broad electronics markets, including medical, automotive, industrial, and test and measurement applications. Headquartered in Santa Clara, Calif., National reported sales of $2.16 billion for fiscal 2006, which ended May 28, 2006.  Additional company and product information is available at www.national.com