<SEC-DOCUMENT>0001418215-15-000003.txt : 20150511
<SEC-HEADER>0001418215-15-000003.hdr.sgml : 20150511
<ACCEPTANCE-DATETIME>20150511120632
ACCESSION NUMBER:		0001418215-15-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150508
FILED AS OF DATE:		20150511
DATE AS OF CHANGE:		20150511

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SILICON LABORATORIES INC
		CENTRAL INDEX KEY:			0001038074
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				742793174
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		400 W CESAR CHAVEZ
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78701
		BUSINESS PHONE:		5124168500

	MAIL ADDRESS:	
		STREET 1:		400 W CESAR CHAVEZ
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78701

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WALKER LAURENCE G
		CENTRAL INDEX KEY:			0001255711

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29823
		FILM NUMBER:		15849565

	MAIL ADDRESS:	
		STREET 1:		22 NORMANDIE RD
		CITY:			DOVER
		STATE:			PA
		ZIP:			02030
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
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    <footnotes>
        <footnote id="F1">Price represents the weighted average selling price.  Prices range between $51.00 and $51.72 per share.</footnote>
        <footnote id="F2">Option is immediately exercisable but the shares vest upon the Optionee's completion of one year of board service measured from the grant date.</footnote>
        <footnote id="F3">Not applicable per instruction 4(c)(iii).</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Saie-Yau Hui for Laurence G. Walker</signatureName>
        <signatureDate>2015-05-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
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</SEC-DOCUMENT>
