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Low pass filter design calculator

Low pass filter design calculator
  1. How HPF is designed from LPF?
  2. What is 3dB point of low-pass filter?

How HPF is designed from LPF?

A high-pass filter (HPF) attenuates content below a cutoff frequency, allowing higher frequencies to pass through the filter. A low-pass filter (LPF) attenuates content above a cutoff frequency, allowing lower frequencies to pass through the filter.

What is 3dB point of low-pass filter?

The 3dB point, or 3dB frequency, is the point at which the signal has been attenuated by 3dB (in a bandpass filter). This is generally considered the point for determining the filter's bandwidth. The bandwidth is defined as the difference between the upper and lower 3dB points.

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