Analog-to-digital converter and multi conversion method for multimode baseband analog signal processing system

摘要

Disclosed are an analog / digital conversion device of a multi-mode baseband analog signal processing system and a conversion method thereof. The apparatus converts analog input signals into digital signals in response to the first conversion control signal, and analog / digital conversion means for outputting the converted digital signals in parallel as parallel digital signals, and the parallel digital signals as second conversion control signals. Mode control in response to a mode selection signal and signal output means for converting serial digital data in serial form in response to and outputting the converted serial digital data or parallel digital data selectively as digital output signals in response to the mode control signals. Control means for outputting signals and outputting first and second conversion control signals in response to the mode control signals, the mode clock signals and the inverted second conversion control signal input from the outside, and the mode clock signals Each is characterized in that the clock signal corresponding to various modes, one analog Since only the / digital converter can be used, the size of the system can be reduced, current consumption can be reduced, and the accuracy and gain of the system can be improved.