Title :
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
Author :
Sevenhans, Jan ; Haspeslagh, Didier ; Delarbre, A. ; Kiss, L. ; Moerman, E.
Author_Institution :
Alcatel Bell, Antwerp, Belgium
Abstract :
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.
Keywords :
CMOS integrated circuits; codecs; mixed analogue-digital integrated circuits; speech analysis and processing; subscriber loops; 1.2 micron; CMOS technology; PCM digital System 12 exchange; analog frontend; analog subscriber lines; line circuit; mixed digital/analog signal processor; receive signals; speech processor; transmit signals; CMOS process; CMOS technology; Circuits; Digital signal processing chips; Digital systems; Phase change materials; Power supplies; Process design; Signal processing; Speech processing;
Conference_Titel :
VLSI Technology, Systems, and Applications, 1991. Proceedings of Technical Papers, 1991 International Symposium on
Print_ISBN :
0-7803-0036-X
DOI :
10.1109/VTSA.1991.246670
