DOI: 10.1109/isscc.1980.1156126
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Abstract: MONOLITHIC PCM CHANNEL FILTERS arc desirable in telephone switching and transmission systems, if they can reduce total lifetime costs without compromising overall performance, As these systems routinely operate in excess of 20 years and have typically used L-C or low-noise hybrid-bipolar filters, monolithic filters must meet very demanding power and performance standards to be universally accepted by the telephone industry. Using switched-capacitor techniques', previous monolithic channel filters have met fre…

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