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Description of Business	12 Months Ended
Description of Business	Dec. 28, 2013
Description of Business
Description of Business	1. Description of Business Silicon Laboratories Inc. (the "Company"), a Delaware corporation, develops and markets mixed-signal analog intensive integrated circuits (ICs) for a broad range of applications for global markets. Within the semiconductor industry, the Company is known as a "fabless" company meaning that the ICs are manufactured by third-party foundry semiconductor companies.