To provide an electrical signal processor capable of distributing a plurality of kinds (frequency) of clock signals, even if the number of clock wires used for the distribution of the clock signals is one.

A clock-connecting means 11 for connecting the plurality of clock signals (CLK11 and CLK12), having different frequencies and outputting one clock signal (CLK14) which includes information on the frequencies of the plurality of the clock signals, is included in a package 10A, and a clock- separating means 12 for separating the one clock signal into a plurality of clock signals (CLK15 and CLK16), having different frequencies on the basis of the information included in the one clock signal (CLK14), is incorporated in different packages 10B, 10C, and so on.