Chapter 5
Adding Components for Special Functions
SCB-68 Shielded Connector Block User Manual
5-10
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Figure 5-10.
Response of a Real Filter to a Square Wave Input Signal
One-Pole Lowpass RC Filter
Figure 5-11 shows the transfer function of a simple series circuit consisting
of a resistor (
R
) and capacitor (
C
) when the voltage across
R
is assumed to
be the output voltage (
V
m
).
Figure 5-11.
Transfer Function of a Simple Series Circuit
The transfer function is a mathematical representation of a one-pole
lowpass filter, with a time constant of
as follows:
(5-3)
Time (t)
Volts (V)
C
R
V
in
V
m
1
2
π
RC
---------------
T s
( )
G
1
2
π
RC
(
)
s
+
-------------------------------
=
