Apparatus and method for compensating for distortion caused by a phase slew of a frame reference signal in an asynchronous wideband code division multiple access communication system

The apparatus of 4, wherein the I/Q channel converter comprises:

• a selector for alternately switching the output of the FIR filter to an I channel output and a Q channel output every ⅛ chip;
• a first delay for delaying the output of the FIR filter by a ¼ chip;
• a first multiplexer (MUX) for selecting the Q channel output of the selector or a previous final Q channel value according to the first select signal;
• a second MUX for selecting the output of the first MUX or the output of the first delay according to second select signal;
• a second delay for delaying the I channel output of the selector by a ⅛ chip;
• a third MUX for selecting the output of the second delay or a previous final I channel value according to the first select signal;
• and
• a fourth MUX for selecting the output of the third MUX or the output of the first MUX according to the second select signal and outputting the selected data as a final I channel value.