人体是最大的静电载体,平时就带有上万伏的电压,秋冬干燥的季节,静电更易在人体上积累,指纹识别作为不可避免与人接触应用,静电防护显得十分重要。本方案采用单颗器件防护,节约空间, 保证信号完整性,满足IEC61000-4-2,等级4,接触放电20kV,空气放电20kV。
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