RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD

摘要

According to one embodiment, a radio communication device 1 includes a variable frequency divider 17 that divides a frequency of a reference clock REFCLK and outputs a frequency divided clock DCLK; a controller 15 that controls a frequency dividing ratio of the variable frequency divider 17 so that an integral multiple of a frequency of the frequency divided clock DCLK is not included in a frequency band of a high-frequency signal that has been received from outside by radio; and a DCDC converter 18 that performs a switching operation in synchronization with the frequency divided clock DCLK to generate an output voltage Vout obtained by stepping down an input voltage Vin.

主权项

1. A radio communication device comprising:
a variable frequency divider that divides a frequency of a reference clock and outputs a frequency divided clock; a controller that controls a frequency dividing ratio of the variable frequency divider so that an integral multiple of a frequency of the frequency divided clock is not included in a frequency band of a high-frequency signal that has been received from outside by radio; and a DCDC converter that performs a switching operation in synchronization with the frequency divided clock to generate an output voltage obtained by stepping down an input voltage.