0001285081-05-000060 4 1 20050708 20050712 20050712 SILICON LABORATORIES INC 0001038074 3674 742793174 DE 1231 4635 BOSTON LN AUSTIN TX 78735 4635 BOSTON LANE AUSTIN TX 78735 Rabinovitsj Daniel A 0001325243 4 34 000-29823 05951211 512-416-8500 4635 BOSTON LANE AUSTIN TX 78735 4 1 primary_doc.xml PRIMARY DOCUMENT