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TMUXHS4212: Connecting MUX outputs to PHY

Part Number: TMUXHS4212
Other Parts Discussed in Thread: TS3USB221A, TMUXHS221

Hi Team, 

I have the following application:

 

From the PCIe I’m getting 4 x 3V3 signals that are converted to 1.8v.

These 4 signals are the inputs of the MUX TMUXHS4212 and the outputs is connected to the TI DP83826 PHY.

 

I have 2 questions here:

  1. Is it ok to connect the MUX directly to the PHY?
  2. Do we need to use decoupling capacitors between the MUX and the PHY?

 

Best regards.