Title :
A hybrid integrated trunk and subscriber line interface
Author :
Davis, Peter ; Crigler, F. ; Spires, D. ; Aull, D.
Author_Institution :
Bell Laboratories, Reading PA, USA
Abstract :
A two-chip hybrid integrated trunk and subscriber line interface has been fabricated for voice and data applications. This paper will discuss features including a programmable battery feed with lightning protection, battery-reversal signaling, 2-4 wire conversion, loop closure detection and power down capability.
Keywords :
Batteries; Data communication; Filters; Hybrid integrated circuits; Impedance; Lightning protection; Logic; Output feedback; Resistors; Voltage;
Conference_Titel :
Solid-State Circuits Conference. Digest of Technical Papers. 1982 IEEE International
Conference_Location :
San Francisco, CA, USA
DOI :
10.1109/ISSCC.1982.1156333
