DocumentCode :
1899377
Title :
Fully Line-Fed Hand-Free Telephone Set
Author :
Consiglio, Pietro ; Antonini, Carlo
Author_Institution :
SGS Microelettronica S.p.A., Milano (Italy)
fYear :
1987
fDate :
23-25 Sept. 1987
Firstpage :
137
Lastpage :
140
Abstract :
A hand-free telephone set working out of line feeding (from at least 17 mA) has been realized using a 2 chips+uP arrangement. The line interface is realized in bipolar technology and the voice processor is realized in CMOS technology with S.C. techniques. The adopted approach allows for an extreme flexibility on gain, filter response time response and uses few external passive components to be placed on the line interface only.
Keywords :
Attenuators; CMOS process; CMOS technology; Potentiometers; Power amplifiers; Signal generators; Software maintenance; Switching loss; Telephony; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-state Circuits Conference, 1987. ESSCIRC '87. 13th European
Conference_Location :
Taunus-Tagungs-Zentrum, F.R. Germany
Print_ISBN :
3800715341
Type :
conf
Filename :
5434932
Link To Document :
بازگشت