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An input selection circuit for the MT8843 and MT88E43

Posted: 29 Nov 2002 ?? ?Print Version ?Bookmark and Share

Keywords:mt8843? tip/ring? cas? cidcw? cpe?

This article describes a low cost circuit to select the MT8843 and MT88E43 analog input between tip/ring and the hybrid receive pair in a CIDCW telephone using passive components and transistors only.

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