ANALOGUE circuits are holding back the development of the next generation of silicon for mobile devices, according to semiconductor executives speaking at two recent industry conferences. The problem is emerging as so-called system-on-chip (SoC) designs mop up more of the functions that, previously, would be divided across many chips on a printed circuit board. What used to be discrete chips are now realised as intellectual property (IP) cores that have to be incorporated into a larger SoC layout.
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