The foregoing review of important factors that could cause actual events to differ from expectations should not be construed as exhaustive and should be read in conjunction with Silicon Labs' and Sigma Designs' filings with the Securities and Exchange Commission ("SEC"), which you may obtain for free at the SEC's website at http://www.sec.gov, and which discuss additional important risk factors that may affect their respective businesses, results of operations and financial conditions. Silicon Labs and Sigma Designs undertake no intent or obligation to publicly update or revise any of these forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Additional Information and Where to Find It

Sigma Designs intends to file the applicable proxy statement(s) in connection with the Acquisition. Investors and security holders of Sigma Designs are urged to read such proxy statement(s) (including any amendments or supplements thereto) and any other relevant documents in connection with the Acquisition that Sigma Designs will file with the SEC upon such documents becoming available because they will contain important information about Sigma Designs and the Acquisition. Such materials filed by Sigma Designs with the SEC may be obtained free of charge at the SEC's website ( http://www.sec.gov) or at the Investor Relations page on Sigma Designs' website at www.sigmadesigns.com or by writing to Sigma Designs' Secretary at 47467 Fremont Blvd. Fremont, CA 94538 USA.

Sigma Designs and its directors and executive officers may be deemed to be participants in the solicitation of proxies from Sigma Designs' stockholders with respect to the Acquisition. Additional information about Sigma Designs' directors and executive officers is set forth in Sigma Designs' proxy statement on Schedule 14A filed with the SEC on July 17, 2017 and Annual Report on Forms 10-K and 10-K/A for the fiscal year ended January 28, 2017. Information regarding their direct or indirect interests in the Acquisition will be set forth in the proxy statement and other materials to be filed with SEC.

Note to editors: Silicon Labs, Silicon Laboratories, the "S" symbol, the Silicon Laboratories logo and the Silicon Labs logo are trademarks of Silicon Laboratories Inc. All other product names noted herein may be trademarks of their respective holders.

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SOURCE Silicon Labs; Sigma Designs, Inc.