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DS90UB913和DS90UB914之间,采用POC的方式供电,PCLK会失锁

Other Parts Discussed in Thread: DS90UB954-Q1

各位专家,我手上有一个多摄像图像拼接的项目,如果单独给加串器那端供电,则可以正常加串/解串;如果采用了POC的方式供电,会出现LOCK信号不停跳变,观察POC filter输出电压稳定(没有明显跌落),FPD-LINK信号的眼图也和解串正常的时候基本一致(没有模板,只能将两种眼图进行对比)。

请问可能造成这种现象的原因有哪些?

  • It is likely that you are feeding some DC voltage to the Rin pins.

    What's your POC voltage?

    Is your POC network the same as the recommended network on Figure 41 of the DS90UB954-Q1 Datasheet?

    您可能正在为Rin引脚提供一些直流电压。
    你的POC电压是多少?
    您的POC网络是否与DS90UB954-Q1数据表图41中推荐的网络相同?