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TDA4VH-Q1: SERDES Refclk HCSL Output

Part Number: TDA4VH-Q1

Tool/software:

Hello,

In our design we are using a clock buffer between the TDA and external device for PCIe reference clock. For HCSL output the buffer lists the following implementation:

Does TDA have series resistors internally or do these need to be included externally with the 50-ohm termination to ground? 

Thank you!