DEMULTIPLEXING DEVICE, MULTIPLEXING DEVICE AND RELAY DEVICE

摘要

Disclosed is a demultiplexing device capable of reducing power consumption. The demultiplexing device is provided with frequency transformation receiving low-pass filter units (101 to 114) for performing frequency transform processing and low-pass filter processing for passing a desired band, and additionally performing downsampling for changing the sampling rate to half of the data speed of the input signal and outputting the same; receiving channel filter units (121 to 128) for waveform shaping the signal with desired frequency characteristics and outputting the same; a filter bank control unit (13) for generating a clock control signal for clocking the frequency transformation receiving low-pass filter units and the receiving channel filter units corresponding to the signal passband on the basis of channel information; and a receive clock supply unit (14) for clocking the frequency transformation receiving low-pass filter units and the receiving channel filter units corresponding to the signal passband on the basis of the clock control signal.