Band-Pass Filter Topologies
Band-pass filters are systems that allow the passing of signals within a band of frequencies, while attenuating the frequencies outside the defined ranged. The amount of attenuation the signals suffers outside the frequency range is dependent on the signals frequency and the order of the filter. In this chapter band-pass SC filters based on the continuous-time version of the Sallen-Key band-pass filter, implemented with a VCVS, will be presented and discussed when using ideal components. Higher order band-pass SC filters using cascaded sections will also be discussed in this chapter.