<SUBMISSION>
<ACCESSION-NUMBER>0000891618-09-000111
<TYPE>DEFA14A
<PUBLIC-DOCUMENT-COUNT>2
<FILING-DATE>20090327
<DATE-OF-FILING-DATE-CHANGE>20090327
<EFFECTIVENESS-DATE>20090327
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>CADENCE DESIGN SYSTEMS INC
<CIK>0000813672
<ASSIGNED-SIC>7372
<IRS-NUMBER>770148231
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1229
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>DEFA14A
<ACT>34
<FILE-NUMBER>001-10606
<FILM-NUMBER>09711451
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>2655 SEELY ROAD BLDG 5
<CITY>SAN JOSE
<STATE>CA
<ZIP>95134
<PHONE>4089431234
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>555 RIVER OAKS PARKWAY
<CITY>SAN JOSE
<STATE>CA
<ZIP>95134
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>ECAD INC /DE/
<DATE-CHANGED>19880609
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>f51853adefa14a.htm
<DESCRIPTION>DEFINITIVE ADDITIONAL MATERIALS
<TEXT>
<HTML>
<HEAD>
<TITLE>defa14a</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>WASHINGTON, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>SCHEDULE 14A</B></DIV>

<DIV align="center" style="font-size: 10pt"><B>(RULE 14a-101)</B></DIV>

<DIV align="center" style="font-size: 12pt; margin-top: 6pt"><B>SCHEDULE 14A INFORMATION</B></DIV>

<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>Proxy Statement Pursuant To Section&nbsp;14(a) of the Securities<BR>
Exchange Act of 1934 (Amendment No. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</B></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 10pt">Filed by the Registrant <FONT face="Wingdings">&#254;</FONT></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 3pt">Filed by a Party other than the Registrant <FONT face="Wingdings">&#111;</FONT>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 3pt">Check the appropriate box:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 3pt"><FONT face="Wingdings">&#111;</FONT> Preliminary Proxy Statement<BR>
<FONT face="Wingdings">&#111;</FONT> <B>Confidential, for use of the Commission Only (as permitted by Rule&nbsp;14a-6(e)(2))</B><BR>
<FONT face="Wingdings">&#111;</FONT> Definitive Proxy Statement<BR>
<FONT face="Wingdings">&#254;</FONT> Definitive Additional Materials<BR>
<FONT face="Wingdings">&#111;</FONT> Soliciting Material Pursuant to &#167; 240.14a-12

</DIV>
<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>CADENCE DESIGN SYSTEMS, INC.</B>
</DIV>
<div style="border-bottom: 1px solid #000000; margin-top: 0pt"></div>

<DIV align="center" style="font-size: 10pt"><B>(Name of Registrant as Specified In Its Charter)</B></DIV>

<div style="border-bottom: 1px solid #000000; margin-top: 18pt"></div>
<DIV align="center" style="font-size: 10pt; margin-top: 0pt"><B>(Name
of Person(s) Filing Proxy Statement, if Other Than the Registrant)</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 10pt">Payment of Filing Fee (Check the appropriate box):
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 10pt"><FONT face="Wingdings">&#254;</FONT> No fee required.<BR>
<FONT face="Wingdings">&#111;</FONT> Fee computed on table below per Exchange Act Rules&nbsp;14a-6(i)(1) and 0-11.
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Title of each class of securities to which transaction applies:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Aggregate number of securities to which transaction applies:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Per unit price or other underlying value of transaction computed pursuant to Exchange
Act Rule&nbsp;0-11 (set forth the amount on which the filing fee is calculated and state how it
was determined):</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(4)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Proposed maximum aggregate value of transaction:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(5)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Total fee paid:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Fee paid previously with preliminary materials:</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Check box if any part of the fee is offset as provided by Exchange
Act Rule&nbsp;0-11(a)(2) and identify the filing for which the
offsetting fee was paid previously. Identify the previous filing
by registration statement number, or the Form or Schedule and the
date of its filing.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Amount Previously Paid:</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Form, Schedule or Registration Statement No.:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Filing Party:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(4)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Date Filed:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></TD>
</TR>
</TABLE>
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio --><!-- /Folio -->
</DIV>
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: Helvetica,Arial,sans-serif">

<DIV align="center" style="font-size: 14pt; margin-top: 10pt"><B>CADENCE DESIGN SYSTEMS, INC.</B></DIV>

<DIV align="center" style="font-size: 12pt; margin-top: 0pt"><B>2655 SEELY AVENUE, SAN JOSE, CALIFORNIA 95134</B></DIV>


<DIV align="Center" style="font-size: 11pt; margin-top: 6pt"><B>Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting<BR>
to Be Held on Wednesday, May&nbsp;13, 2009<BR>
<br style="font-size: 3pt"></B>

</DIV>
<center>
<DIV style="width: 70%; border: 1px solid black; padding: 0px">
<DIV align="center" style="font-size: 10pt; margin-left: 11px; margin-right: 11px; margin-top: 3pt"><B><I>The Proxy Statement, Annual Report and other proxy materials are available at:</I></B><BR>
<B><I>http://bnymellon.mobular.net/bnymellon/cdns</I></B><BR><br style="font-size: 3pt"></DIV>
</DIV>
</center>

<P><DIV style="position: relative; float: left; width: 50%">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<IMG src="f51853af5185303.gif" alt="(LOGO)"></DIV>

<DIV align="center">
<TABLE style="font-size: 6pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="6%">&nbsp;</TD>
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    <TD width="50%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="10%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
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<TR style="font-size: 10px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
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    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD style="border-right: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>

<TD rowspan="3" align="center" valign="top" style="border-top: 1px solid #000000; border-right: 1px solid #000000; border-left: 1px solid #000000" >
<B><br>&nbsp;BAR CODE&nbsp;<BR>&nbsp;RESTRICTED&nbsp;<BR>&nbsp;AREA&nbsp;<br><br></B></TD>

    <TD width="1%" style="border-right: 0px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="left" valign="top" >&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD width="1%" style="border-right: 0px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-right: 0px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
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    <TD align="left" valign="top">&nbsp;</TD>
    <TD style="border-right: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-right: 0px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size:25px"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px; border-left: 2px solid #000000; border-bottom: 2px solid #000000">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>
</DIV>

<DIV style="position: relative; float: right; width: 40%">
<DIV align="justify" style="font-size: 9pt; margin-top: 10pt"><B><I>This communication presents
only an overview of the more complete proxy materials that are
available to you on the Internet. We encourage you to access and
review all of the important information contained in the proxy materials before voting.</I></B></DIV>

<DIV align="justify" style="font-size: 9pt; margin-top: 10pt"><B><I>If you want to receive a
paper or e-mail copy of these documents, you must request one. There
is no charge to you for requesting a copy. Please make your request
for a copy as instructed below on or before May&nbsp;1, 2009 to facilitate timely delivery.</I></B></DIV>
</DIV>
<BR clear="all"><BR>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt">Dear Stockholder:</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The 2009 Annual Meeting of Stockholders of Cadence Design Systems, Inc. will be held at the
offices of Cadence Design Systems, Inc. (the &#147;Company&#148;) located at 2655 Seely Avenue, Building 10,
San Jose, California 95134, on Wednesday, May&nbsp;13, 2009, at 1:00 p.m. Pacific time.</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Proposals to be considered at the Annual Meeting:</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To elect directors to serve until the 2010 Annual Meeting of Stockholders of the Company;</TD>
</TR>

<TR>
    <TD style="font-size: 3pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To approve an amendment to the Company&#146;s Amended and Restated Employee Stock Purchase
Plan;</TD>
</TR>

<TR>
    <TD style="font-size: 3pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To ratify the selection of KPMG LLP as the Company&#146;s independent registered public
accounting firm for the fiscal year ending January&nbsp;2, 2010; and</TD>
</TR>

<TR>
    <TD style="font-size: 3pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(4)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To transact such other business as may properly come before
the meeting or any adjournment or postponment thereof.</TD>
</TR>
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt">The Board of Directors of the Company recommends a vote &#147;<U>FOR</U>&#148; Items 1, 2 and 3.</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt">The Board of Directors of the Company has fixed the close of business on March&nbsp;17, 2009 as the
record date (the &#147;Record Date&#148;) for the determination of stockholders entitled to notice of and to
vote at the 2009 Annual Meeting of Stockholders and at any adjournment or postponement thereof.</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt; margin-left:550px">CONTROL NUMBER<BR>
<FONT face="Wingdings">&#234;</FONT></DIV>

<P><DIV style="position: relative; float: left; width: 50%">
<P>
<DIV style="width: 100%; border: 1px solid black; padding: 0px">

<DIV align="center" style="font-size: 10pt; margin-top: 3pt; margin-bottom: 6pt"><B>You may vote your proxy<BR>
when you view the materials on the Internet.<BR>
You will be asked to enter this 11-digit control
number</B><BR><br style="font-size: 3pt"></DIV>
</DIV>

</DIV>
<DIV style="position: relative; float: right; width: 49%">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><BR></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><FONT face="Wingdings">&#232;</FONT></DIV>
</DIV>
<BR clear="all"><BR>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>
<DIV style="font-family: Helvetica,Arial,sans-serif">

<DIV align="left" style="font-size: 10pt; margin-top: 10pt"><B>Stockholders
of record as of the Record Date are cordially invited and encouraged
to attend the 2009
Annual Meeting of Stockholders of Cadence Design Systems, Inc.<br>
To receive directions to this Annual Meeting, please visit our corporate website at
http://www.cadence.com</B>.</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 3pt"><U><B>Meeting Location:</B></U></DIV>

<DIV align="left" style="font-size: 10pt; margin-left: 3%; margin-top: 0pt">Cadence Design Systems, Inc.<BR>
2655 Seely Avenue, Building 10 <BR>San Jose, California 95134</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 3pt"><u><B>The following materials are available for you to review online:</B></u></DIV>

<DIV style="margin-top: 0pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the Company&#146;s 2009 Proxy Statement (including all attachments thereto);</TD>
</TR>

<TR>
    <TD style="font-size: 0pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the Proxy Card;</TD>
</TR>

<TR>
    <TD style="font-size: 0pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the Company&#146;s Annual Report for the fiscal year ended January&nbsp;3, 2009 (which is not
incorporated into the proxy soliciting materials); and</TD>
</TR>

<TR>
    <TD style="font-size: 0pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>any amendments to the foregoing materials that are required to be furnished to stockholders.</TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 3pt"><U><B>To
request a paper copy of the proxy materials</B></U>: (you must reference your 11-digit control number)</DIV>

<DIV align="left" style="font-size: 10pt; margin-left: 3%; margin-top: 0pt">Telephone: <B>1-888-313-0164 </B>(outside of the U.S. and Canada call 1-201-680-6688)<BR>
Email: <B>shrrelations@bnymellon.com</B><BR>
Internet: <B>http://bnymellon.mobular.net/bnymellon/cdns</B></DIV>

<DIV align="center" style="font-size: 14pt; margin-top: 3pt"><U><B>ACCESSING YOUR PROXY MATERIALS ONLINE</B></U></div>

<DIV align="center" style="font-size: 10pt; margin-top: 0pt"><B>YOU MUST REFERENCE YOUR 11-DIGIT CONTROL NUMBER WHEN YOU REQUEST<BR>
A PAPER COPY OF THE PROXY MATERIALS OR TO VOTE YOUR PROXY<BR>
ELECTRONICALLY OR BY TELEPHONE.</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 50pt"><B>The Proxy Materials for Cadence Design Systems, Inc. are available to review at:</B></DIV>

<DIV align="center" style="font-size: 14pt; margin-top: 10pt"><U><B>http://bnymellon.mobular.net/bnymellon/cdns</B></U></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 10pt">Have this notice available when you request a PAPER copy of the proxy materials,<BR>
when you want to view your proxy materials online<BR>
OR WHEN YOU WANT TO VOTE YOUR PROXY<BR>
ELECTRONICALLY OR BY TELEPHONE.
</DIV>

<center>
<P>
<DIV style="width: 80%; border: 1px solid black; padding: 11px">

<DIV align="center" style="font-size: 14pt; margin-top: -10pt"><BR style="font-size:3pt">
<B>VOTE BY INTERNET OR THE PHONE</B></div>

<DIV align="center" style="font-size: 10pt; margin-bottom: -5pt">Use the Internet or call the number provided to vote your shares.<BR>
Have this card in hand when you access the above website.<BR>
On the top right hand side of the website click on <B>&#147;Vote Now&#148; </B>to access the electronic proxy card<BR>
and vote your shares or call the number provided on the website to vote your shares by telephone.</DIV>
</DIV>
</center>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
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