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DP83620: DP83620光纤模式,与光模块 共模偏置电阻问题

Part Number: DP83620

您好,

     DP83620光纤模式,与光模块对接,光模块电平为LVPCEL(3.3V 交流耦合),我认为是 需要 在TD+,TD-  上拉82R,下拉130R。 但是DP83620手册和demo都是 上拉130R,下拉82R? 有点疑惑,帮忙确认一下。

  

我看几个光模块,给的参考电路也是如此:

有没有参考电路推荐,谢谢。