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TPD7S019-15DBQR 7-channel integrated ESD solution for VGA port 15ohm termination

客户这个芯片是用在VGA显示功能部分,产品显示输出上面发生异常。 VGA10寸屏,无法调整好,分辨率不会自适应,接正常显示器也不显示;客户OS下看到只找到“通用非即插即用显示器”正常应该可以抓到显示器的型号;客户工程师量测了正常IC与异常IC的区别,在开机后发现EDID出不来,导致无法识别显示器硬件。经过客户对对物交叉验证,发现不良现象跟着物料走,确认为物料不良。

客户正常显示画面为:


 

客户不良显示画面为:


 

客户原理图供参考: