Title :
CMOS pulse-code-modulation voice codec
Author :
Smarandoiu, Gheorghe ; Hodges, David A. ; Gray, Paul R. ; Landsburg, George F.
fDate :
8/1/1978 12:00:00 AM
Abstract :
A standard CMOS technology has been employed in LSI realization of a pulse-code-modulation (PCM) encoder and decoder for per-channel applications in telephony. Innovations in the design of an operational amplifier, a comparator, and precision-ratioed capacitor arrays, all in standard CMOS, are reported.
Keywords :
Capacitors; Comparators (circuits); Field effect integrated circuits; Operational amplifiers; Pulse-code modulation; Telephone equipment; Vocoders; capacitors; comparators (circuits); field effect integrated circuits; operational amplifiers; pulse-code modulation; telephone equipment; vocoders; CMOS technology; Capacitors; Codecs; Decoding; Large scale integration; Operational amplifiers; Phase change materials; Pulse amplifiers; Technological innovation; Telephony;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1978.1051085
