Click to expand full text
®
T nt DUC PRO placeme r at E T e E te r L n 1 e O OBS HC5512 upport C om/tsc c d . S l n i l a rs mme Sheet hnic .inte Data Reco r Tec or www u o t IL ac cont -INTERS 8 1-88
HC-5509B3999-003
July 2003 FN4126.1
SLIC Subscriber Line Interface Circuit
The HC-5509B3999-003 telephone Subscriber Line Interface Circuit integrates most of the BORSCHT functions on a monolithic IC. The device is manufactured in a Dielectric Isolation (DI) process and is designed for use as a high voltage interface between the traditional telephone subscriber pair (Tip and Ring) and the low voltage filtering and coding/decoding functions of the line card. Together with a secondary protection diode bridge and “feed” resistors, the device will withstand 1000V lightning induced surges, in plastic packages.