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A single chip mixed digital/analog signal processor in 1.2 mu CMOS interfacing 4 analog subscriber lines to the PCM digital System 12 exchange

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5 Author(s)
J. Sevenhans ; Alcatel Bell, Antwerp, Belgium ; D. Haspeslagh ; A. Delarbre ; L. Kiss
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For the development of a new generation line circuit a 4 channel speech processor was designed and fabricated in a 1.2 mu CMOS technology. The circuit includes digital signal processing for receive and transmit signals as well as the analog frontend interfacing four subscriber lines to a PCM digital exchange. The device is operating on a single 5 V power supply.

Published in:

VLSI Technology, Systems, and Applications, 1991. Proceedings of Technical Papers, 1991 International Symposium on

Date of Conference:

22-24 May 1991