41. Then attach a 350nm UV pass filter . 42. Then a simple low-pass filter with real coefficients can excise the portion of interest. 43. An anti-aliasing low-pass filter is included in the final video output circuit. 44. It is possible to cascade a delay line with another type of all-pass filter . 45. It arises especially in the step response of bandlimited systems such as low-pass filters . 46. The practical integrator circuit is equivalent to an active first-order low-pass filter . 47. Transfer functions with both zero and infinite frequency can be found in band-pass filters . 48. A low-pass lifter is similar to a low-pass filter in the frequency domain. 49. Some are fully configurable; some are pre-configured, usually as low-pass filters . 50. In this configuration, the circuit behaves as a " high-pass filter ".
