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李根泳,崔訓淳 成均館大學校 科學技術硏究所 1984 論文集 Vol.35 No.1
Frequency multipliers find applications in the Fourier and Walsh spectrum measurments of periodic signals. Earlier digital frequency multipliers use two counters;l) An up counter which determines the period of the input signals by the number of clock pulses accumlated in a period of signal. 2) A down counter preset to the contents of up counter when zero. In this process the considerable amount of errors is introduced in output frequency because the fractional counter contents are ignored in the frequency multiplication phase. This paper uses two clock signals CLK_1, CLK_2 which drive I count-er and F counter respectively at proper time instant to reduce error. The considerable amount of errors are reduced by using method.