PhillDubya
New Member
Fundamental question.
A single pole low pass filter, lets say: RC lowpass, will have a VERY shallow cut off.
A 5 pole filter will have a VERY STEEP cut off.
The question:
If I were to design a single pole low pass for 100Hz, due to the shallow cut off, it probably wouldn't actually cut off right at 100Hz correct?
It may actually pass 110, and even 120, etc..., correct?
Basically, the higher order, the higher accuracy...if I am understanding correctly?
Thanks
A single pole low pass filter, lets say: RC lowpass, will have a VERY shallow cut off.
A 5 pole filter will have a VERY STEEP cut off.
The question:
If I were to design a single pole low pass for 100Hz, due to the shallow cut off, it probably wouldn't actually cut off right at 100Hz correct?
It may actually pass 110, and even 120, etc..., correct?
Basically, the higher order, the higher accuracy...if I am understanding correctly?
Thanks
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