0001418215-07-000004 4 1 20071207 20071211 20071211 CASH HARVEY B 0001198704 4 34 000-29823 071297575 9723927279 13455 NOEL ROAD SUITE 1670 DALLAS TX 75240 CASH H BERRY 20021015 SILICON LABORATORIES INC 0001038074 3674 742793174 DE 1231 400 W CESAR CHAVEZ AUSTIN TX 78701 5124168500 400 W CESAR CHAVEZ AUSTIN TX 78701 4 1 primary_doc.xml PRIMARY DOCUMENT