AC termination power calculation

[likephysics]

How do we calculate power dissipation for AC termination on a clock signal?
The resistor is dissipating only at the edges(assuming a square wave).

 

[Baluncore]

You need to know the clock frequency, the amplitude of the signal, and the capacitance.
Charge is pumped through the resistor with each clock transition.
C = Q / V ; Q = C⋅V .
Q = I⋅ t ;

Or you model it with LTspice etc.

 

[Tom.G]

I think that @Baluncore supplied the needed information above, but just in case --
Here is a tutorial site about termination. It is mostly DC coupling but does touch on AC coupling. They offer a free handbook and a Chat link after you read the whole page. Might be useful.
https://www.protoexpress.com/blog/pcb-trace-termination-techniques-to-reduce-signal-reflections/

Cheers,
Tom