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TVP5150AM1输入波形异常问题

Other Parts Discussed in Thread: TVP5150

大家好,有个问题请教一下:

TVP5150AM1这个芯片在使用过程中,发现有故障的,检查发现CVBS输入脚(如PIN1)的波形异常,如下图。请问是否说明这个芯片已经坏了?