A single-chip dual-tone and dial-pulse signaling receiver

1 January 1982

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

Vol. XXV, 212-213
https://doi.org/10.1109/isscc.1982.1156411

Abstract

A fully integrated central office DTMF/dial pulse receiver using switched capacitor filters and digital signal processing techniques, fabricated in double silicon NMOS, will be reported. The 36mm²400mW chip operates from ± 5v supplies.

Keywords

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