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: 0.000675 * '''FR''' ≤ ''f''<sub>high</sub> - ''f''<sub>low</sub> ≤ 0.99 * '''FR''' | : 0.000675 * '''FR''' ≤ ''f''<sub>high</sub> - ''f''<sub>low</sub> ≤ 0.99 * '''FR''' | ||
: Here '''FR''' is the input frequency range, the | : Here '''FR''' is the input frequency range, the pass band attenuation is 3 dB (0.1 dB if the design type is Chebyshev pass-band ripple filter), and the transition width is '''FR''' / 400. | ||
[[File:image_2020-11-27_095451.png|600px]] | [[File:image_2020-11-27_095451.png|600px]] |