Series termination resistor for IMI9531 Spread Spectrum Clock Generator

Question: What is the recommended  series termination resistor for the output 133 MHz clock lines from the IMI9531 Spread Spectrum Clock Generator?

 

Answer:

The best termination depends on the trace length and trace impedance and capacitance being driven . A nominal value would be between 22 and 33 ohm. Make sure there are not any vias in the trace within the middle 3rd of the trace.