POWER CONSUMPTION REDUCTION CIRCUIT AT TRANSMISSION, RADIO COMMUNICATION TERMINAL USING IT AND LINEAR OPERATION CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To more effectively reduce the power consumption. SOLUTION: In the case that the power consumption is reduced by using a linear compensation circuit 30 to operate an amplifier in a transmission circuit section 20 in a nonlinear operating region, power supply to the linear compensation circuit 30 is controlled to be interrupted with respect to a transmission output of a prescribed level or lower (a linear operating region of the amplifier). Or clock supply to the digital circuit section of the linear compensation circuit 30 may be controlled to be interrupted. The power consumption of the linear compensation circuit 30 can be reduced by bringing substantially the linear compensation circuit 30 into a halt state in the linear operating region of the amplifier.