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针对红外信号传感器输出信号较弱且变化范围大的特点，介绍了一种基于16位A／D转换器CS5521的可编程红外信号检测电路的设计方法。
In view of the weak output signal of infrared signal sensor and its wide variation range, a design method of programmable infrared signal detection circuit based on 16-bit A / D converter CS5521 is introduced.