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ads5400在不输入信号时出现毛刺

Other Parts Discussed in Thread: ADS5400

你好

我在调试ADS5400的时候,1G采样率,双通道,DDR模式,发现踩到的数据在没有信号输入时有毛刺现象。在spi不配置的情况下,输出偏移二进制,理论上ADS5400输出的值在2048左右,但是会出现520和3320的数据。这种情况该如何应该,试过在fpga调整相移,效果不明显。