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使用TFP410编码没有输出的差分时钟

Other Parts Discussed in Thread: TFP410

我使用TFP410将视频数据进行TDMS 编码输出到HDMI显示器显示,TFP设置为24位上升沿单像素模式,芯片的TDMS差分时钟输出有问题一直为低电平,用示波器测过,一直为低电平,其他的TDMS三个数据通道用示波器测过有波形,那么这是芯片坏了,还是有什么地方没设置好呢?连接到显示器一直为黑屏?

信号输入无误,经过输出到VGA显示正常?

原理图如下: