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TPD12S016: 有IIC输入信号没有输出信号

WANG JING
Prodigy 30 points
Part Number: TPD12S016
Other Parts Discussed in Thread: AM5728,

   HI

  主控采用AM5728，IIC经过TPDA2S016，再到HDMI接口，如图所示，目前出现出现的问题是：AM5728有IIC波形输出到TPDA2S016，波形如图所示，TPDA2S016没有波形显示，TPDA2S016电压正常，请问是芯片连接了防护需要做模式处理吗？