Audio Processor ICs for Advanced TV
A family of fully integrated advanced audio processors for advanced TV applications implemented in deep submicron complementary metal oxide semiconductor (CMOS) will be presented. These are mixed signal designs with integrated data converters and digital signal processing to enable rich acoustic experience for cost-sensitive systems. Digital performance, in terms of speed and large memory, in conjunction with low cost required by the application, calls for the use of a small geometric CMOS process. It is technically challenging to design high performance converters on such sub-micron CMOS, particular due to substrate noise and flicker noise. To overcome these issues, continuous-time converter architectures have been developed and designed.
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