L8574D Datasheet (Agere Systems) - Resistive SLIC / Ring Relay and Protector

L8574D, Resistive SLIC / Ring Relay and Protector

The L8574 is a resistive subscriber line interface circuit (SLIC) that is optimized for long loop applications, such as Bellcore TR-NWT-000057 requirements for digital loop carrier (DLC) applications.

It interfaces the low-voltage circuits on

L8574D Features

* s Low-power scan mode for low on-hook power dissipation (55 mW max) s Low active power dissipation; talk or on-hook transmission (240 mW max) s Distortion-free on-hook transmission s Eight operating states via latched paralleled data inputs with channel select feature s Precision ﬁxed 28 mA current