Measurement-computing PC104-DIO48 User Manual download pdf (Page 22)

A simple low-pass filter may be constructed from one resistor (R) and

one capacitor (C) (Figure 5-3). The cut-off frequency is determined

according to the formula:

Fc =

1 Where π= 3.14...

2 π R C R = ohms

C = farads

and

R = 1

Fc = cut-off frequency in cycles/second.

2π C Fc

18

1 2 ... 17 18 19 20 21 22 23 24

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