Le79R79 Datasheet (Zarlink) - Ringing Subscriber Line Interface Circuit

Le79R79, Ringing Subscriber Line Interface Circuit

The Le79R79 Ringing SLIC device is a bipolar monolithic SLIC that offers on-chip ringing.

Designers can achieve significant cost reductions at the system level for short-loop applications by integrating the ringing function on chip.

Examples of such applications would be ISDN terminal adaptors, fibe

™ Le79R79 Ringing Subscriber Line Interface Circuit VE580 Series APPLICATIONS Ideal for short-loop applications Ideal for ISDN-TA and fixed radio access applications Integrated Access Devices (IADs) Network Interface Units (NIUs) Cable Modems DSL Modems Set Top / House Side Boxes Intelligent PBX Pain Gain FXS Cards Voice over ISDN or T1/E1 Smart Residential Gateways

Le79R79 Features

* Through trapezoidal ringing On-chip ring-trip detector Low standby state power Battery operation:

* VBAT1:

* 40.5 to

* 75 V

* VBAT2:

* 19 V to VBAT1 On-chip battery switching and feed selection On-hook transmission Two-wire