I need to calculate the resistors and capacitor values for a pole zero (low pass) filter. The cut off frequency is 70 kHz.

Please help me do the calculations.

 

F = 1 / 2pi*R*C, therefore R = 1 / 2pi*F*C, or C = 1 / 2pi*R*F

In the reasonable value range, one answer out of many is 22.6K and 100pF.

 

F = 1 / 2pi*R*C, therefore R = 1 / 2pi*F*C, or C = 1 / 2pi*R*F

In the reasonable value range, one answer out of many is 22.6K and 100pF.

That, of course, is for a single-pole filter which has the low rolloff rate of 6dB/octave.

 

I am asking the calculations for a pole zero filter as shown in the following figure. There are two resistors instead of one. Then what would be the case in calculating the values?

 

All you need to do is to find the transfer function