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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”...

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