Title :
A Software Programmable CMOS Telephone Circuit
Author :
Dielaeher, F. ; Hauptmann, Joerg ; Reisinger, Jochen ; Steiner, R. ; Zojer, H.
Abstract :
A mixed Analog-Digital IC combining the speech and signalling functions for an analog telephone on a 2μ CMOS chip will be described. New features such as software programmable level control, dc characteristics, input impedance and transhybrid balancing offer a flexible system-solution for the different international requirements with a minimum number of external components. This features enable telephone manufacturers to produce a quality feature phone with a minimum number of components, and therefore with high reliability and low cost.
Keywords :
CMOS analogue integrated circuits; CMOS digital integrated circuits; electronic engineering computing; mixed analogue-digital integrated circuits; programmable circuits; reliability; telephone sets; CMOS chip; analog telephone; dc characteristics; input impedance; mixed analog-digital IC; reliability; signalling function; size 2 mum; software programmable CMOS telephone circuit; speech function; telephone manufacturer; transhybrid balancing; Analog integrated circuits; Analog-digital conversion; Analog-digital integrated circuits; CMOS analog integrated circuits; CMOS integrated circuits; Impedance; Level control; Manufacturing; Speech; Telephony;
Conference_Titel :
Solid-State Circuits Conference, 1990. ESSCIRC '90. Sixteenth European
Conference_Location :
Grenoble
Print_ISBN :
2-86332-087-4
