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Press release from Business Wire

Semtech 40G MUX/DEMUX Platform Enables JDSU 40G Metro Optical Network Transponder Solutions

<p class='bwalignc'> <i>JDSU 40Gb/s Transponder Uses Industry-Leading Merchant 40Gb/s MUX/DEMUX Chipset from Semtech</i> </p>

Monday, March 07, 2011

Semtech 40G MUX/DEMUX Platform Enables JDSU 40G Metro Optical Network Transponder Solutions08:00 EST Monday, March 07, 2011 CAMARILLO, Calif. (Business Wire) -- Semtech Corp. (Nasdaq: SMTC), a leading supplier of analog and mixed-signal semiconductors, today announced they have successfully integrated Semtech's 40Gb/s multiplexer (MUX)/demultiplexer (DEMUX) chipset platform into JDSU's 40Gb/s DWDM transponder modules. Semtech is a leader in the emerging, short-reach, metropolitan and long-haul optical network markets as a leading supplier of 40Gb/s and 100Gb/s MUX/DEMUX chipsets. JDSU is a leader in integrated 40Gb/s and 100Gb/s optical-to-electrical and electrical-to-optical conversion solutions for these markets. “Explosive video, voice and traffic demands, including HDTV, interactive TV, streaming video, and 4G are placing extreme pressures on global carriers to deliver ultra-high bandwidth quickly and in a cost effective, efficient and reliable way,” said Sameer Vuyyuru, vice president and general manager for Semtech's Transport and Data Communication Group. “JDSU is at the forefront of this wave with a commanding product breadth and depth of technology and we are proud to be designed into their leading-edge 40G transponders. We look forward to a long and rewarding relationship,” concluded Vuyyuru. “Semtech is a key vendor for JDSU with their MUX/DEMUX solutions at 40G and beyond,” stated John Kavanagh, vice president of supply chain for JDSU's CCOP division. “40G technology is technically challenging and requires high-level skill sets in analog design, as well as in packaging and testing.” JDSU's 40Gb/s transponder employs Semtech's SMI4027 MUX and SMI4037 DEMUX chipset to convert data signals from electrical to optical formats and back again. The SMI4027 multiplexer includes an on-chip clock multiplier unit (CMU) that supports data rates from 39.8 to 44.6Gb/s and combines 16 lanes of 2.5Gb/s incoming data signals into four lanes of 10Gb/s each to enable fast, reliable data transport over optical fiber. The SMI4037 demultiplexer accepts both single-ended and differential 39.8 to 44.6Gb/s bi-directional NRZ serial data streams and separates (demultiplexes) the data signals into 16 parallel output channels on the outbound transmission side. About Semtech Semtech Corporation is a leading supplier of analog and mixed-signal semiconductors for high-end consumer, computing, communications and industrial equipment. Products are designed to benefit the engineering community as well as the global community. The company is dedicated to reducing the impact it, and its products, have on the environment. Internal green programs seek to reduce waste through material and manufacturing control, use of green technology and designing for resource reduction. Publicly traded since 1967, Semtech is listed on the NASDAQ Global Select Market under the symbol SMTC. For more information, visit http://www.semtech.com. About JDSU JDSU (NASDAQ: JDSU; and TSX: JDU) innovates and markets diverse technologies that enhance the way people experience the world every day. We enable fast, high-quality communications, secure financial transactions, reliable consumer electronics, green energy, differentiated brands and a host of other solutions. We provide these solutions through three business segments: Communications Test and Measurement, Communications and Commercial Optical Products, and Advanced Optical Technologies. To learn more about JDSU please visit www.jdsu.com, www.jdsu.tv, and follow JDSU on Twitter: www.twitter.com/jdsu.   Semtech and the Semtech logo are registered marks of Semtech Corporation. JDS Uniphase and JDSU are trademarks of JDS Uniphase Corporation. Other trademarks and trade names mentioned maybe marks and names of their owners as indicated. Semtech CorporationPauline Cadena, 805-389-2755pcadena@semtech.com