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电路图：
CH1是 ISO1640 的SCL1 ,CH2是ISO1640 SDA1波形,SCL1\SDA1接BQ76952，BQ769452无法解析信号，我们初步分析是SCL1“低”电平大概是0.6~0.8V，导致AFE无法解析。如何将"低“电平拉低？
您好，是否方便提供完整的电路。
