RADIO COMMUNICATION UNIT, SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE, AND MOBILE TERMINAL APPARATUS

PROBLEM TO BE SOLVED: To provide a means for reducing the influence of nth-order harmonic by physically separating two digital communication lines using mutually different frequencies. SOLUTION: A radio communication unit includes a first radio chip taking charge of one digital communication line and a second radio chip taking charge of the other digital communication line. An RF receiving module and an RF transmitting module are included in either one of the first and second radio chips. By communicating between the two radio chips by an analog base band signal, the two digital communication lines are arranged in an isolated manner. Consequently, the influence of a harmonic component of an operation frequency of one digital communication line exerted on the other digital communication line is prevented. COPYRIGHT: (C)2011,JPO&INPIT