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General Description: The BA3826S is a 7-band ( 2), band-pass filter that uses microprocessor time division to output in serial to left and right stereo channels. To minimize the number of external components required and enable compact and reliable designs, all of the capacitors for the filters are on the chip. Circuit diagram: Band-pass filter for spectrum analyzer Datasheet for BA3826S: Download

Low pass filter is a low-pass filter with low frequency signals but attenuates (reduces the amplitude of) signals with frequencies higher than cutoff frequency. The actual amount of damping for each frequency varies from filter to Filtering. Sometimes called-high-cut filter, or treble cut filter when used in audio applications. Low-low pass filter is the opposite of the band-pass filter. Low Pass Filter Basic Circuit The concept of low-pass filter exists in many forms, including electronic circuits (like a hiss filter used in audio), digital algorithms for smoothing data sets, acoustic barriers, blurring the image, and so forth.