The HC-5502X/4X family of telephone subscriber line interface circuits (SLIC) integrate most of the BORSCHT functions of the traditional hybrid transformer interface circuits onto one chip.

Our SLICs provide you an economical solution for adding voice channels to broadband applications such as residential broadband gateways, DSL IADs, cable eMTAs and more.

PROTECTIONCIRCUIT - Suggested protection circuit is based on pro- grammable Trisils (like LCP1511/2) as shown in Fig.2 and Fig. 3, and the surge current is limited by the resistors …

It is a multi-purpose system interface and control circuit for a line card of between four and thirty-two sub- scribers. In addition, this same circuit is useful as the inter- face device for trunk, …

A subscriber line interface circuit (SLIC) is typically used as the primary interface between the subscriber loop and the central office. Among other functions, the SLIC provides a direct …

Sep 18, 2025 · Subscriber Line Interface Circuits, commonly referred to as SLIC chips, are semiconductor devices designed to connect traditional telecommunication devices to digital …

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 …

Also, ISDN supports the standard telephone interface (voice and fax), which includes the Subscriber Line Interface Circuit. A Subscriber Line Interface Circuit requires a negative power …

The SLIM consists of a line driver, a line receiver, a line impedance control circuit, a hybrid balance circuit, a loop supervision circuit, a ring supervision circuit, three positive relay drivers, …

The Le79R241 Intelligent Subscriber Line Interface Circuit (ISLICTM) device, in combination with a VE790 series ISLACTM device, implements the telephone line interface function.