DOI: 10.1109/isscc.1982.1156420
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Y. Kuraishi, T. Makabe, K. Nakayama, T. Kimura

Abstract: BY USING DIGITAL SIGNAL processing and LSI techniques, modern modems have been, in the main, of LSI design, except for the analog section. However, a complete LSI modem is necessary to realize a low-cost and small size modem. The analog LSI circuit will be a key device for data transmission equipment. This paper will describe an NMOS analog front-end LSI circuit for high speed telephone channel modems. The circuit has various kinds of analog functions: A/D and D/A converters, band limiting filters, AGC circui…

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