AM79R70
DESCRIPTION
The AMD family of subscriber line interface circuit (SLIC) products provide the telephone interface functions required throughout the worldwide market. AMD SLIC devices address all major telephony markets including central office (CO), private branch exchange (PBX), digital loop carrier (DLC), fiber-in-the-loop (FITL), radio-in-the-loop (RITL), hybrid fiber coax (HFC), and video telephony applications. The AMD SLIC devices offer support of BORSHT (battery feed, overvoltage protection, ringing, supervision, hybrid, and test) functions with features including current limiting, on-hook transmission, polarity reversal, tipopen, and loop-current detection. These features allow reduction of linecard cost by minimizing ponent count, conserving board space, and supporting automated manufacturing. The AMD SLIC devices provide the two- to four-wire hybrid function, DC loop feed, and two-wire supervision. Two-wire termination is programmed by a scaled impedance network. Transhybrid...
