Compensation of Non-Linearly Gain of Tunable Decimation CIC Filters

In this article described the procedure of design CIC decimation filters with variable decimation factor used in DSP with more economical and operating efficiency. The described method of compensating amplitude degradation due variable decimation factor allows to reduce FPGA resources or die area in comparison with other methods. The considered filter has 2x greater efficiency of FPGA resource usage and 60% higher operating frequency. Recommendations for design, application use and a design example with the necessary requirements is given.