Analysis: Apple keeps Cirrus Logic afloat in a sea of IC woes

While most chipmakers are facing a difficult year, Cirrus Logic is posting healthy results thanks to business from its biggest customer, Apple, Kirk Ladendorf writes. Apple represented more than three-quarters of Cirrus Logic's third quarter revenue, which was up 91% from a year earlier. Teardowns revealed that the iPhone 5 and the iPad Mini each contain three audio chips from Cirrus, Ladendorf notes.

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