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Using microcontrollers in digital signal processing applications

Posted: 09 Jul 2008     Print Version  Bookmark and Share

Keywords:application note  Silicon Laboratories  DSP application  MCU  signal processors 

This application note discusses an alternative solution using a Silicon Laboratories microcontroller to implement DSP algorithms in less space and still have plenty of CPU bandwidth available for other tasks.

For each of these topics, we introduce the algorithm, discuss the implementation of these algorithms on the DSP-enabled MCUs using the multiply and accumulate (MAC) engine, and provide a list of the CPU bandwidth and memory usage.

The 100 peak MIPS CPU, 2-cycle 16x16 MAC engine and on-chip ADC and DAC make the C8051F12x and C8051F36x well suited to DSP applications. Using these resources on a C8051F36x microcontroller, a 5mmx5mm 8-bit MCU can process data in real-time for FIR filters and Goertzel Algorithms for DTMF decoding and implement a full FFT.

View the PDF document for more information.

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