Patent ID: 7383028
Filing Date: 2008-06-03
Classification: H03F,H04B,H04L

Abstract:
1. A transmitter comprising: two DA converter units which convert two digital signals that are obtained by separating an inputted digital signal or two digital signals that are separately inputted into analog signals; a combiner which combines the analog signals obtained through the conversion by the DA converter units with each other; a distributor which extracts a portion of the combined signal as a feedback signal; an AD Converter which converts the feedback signal into a digital signal; an oscillator unit which supplies clock signals to operate the DA converter units and the AD converter; a first separation unit which separates the feedback signal converted by the AD converter into two signals; and a comparator unit which compares at least one of the two digital signals that are obtained by separating the inputted digital signal or at least one of the two digital signals that are separately inputted with the feedback signal separated by the first separation unit, wherein the oscillator unit controls the clock signals supplied to the DA converter units and the AD converter based on a result of the comparison by the comparator unit.