Input Impedance of SC block in PSoC1

Question: What is the input impedance of SC clock in PSoc1?

 

Answer:

Input impedance of SC block depends on the functionality and the value of input capacitor used. It can be calculated from formula:

Input Impedance = 1/(Fs * C)

Where
Fs is the switching frequency (column clock/4) and
C is value of input capacitor