L9311

Data Sheet July 2001 L9311 Line Interface and Line Access Circuit Full-Feature SLIC with High Longitudinal Balance, Ringing Relay, and GR-909 Test Access Introduction The Agere Systems Inc. L9311 is a combination fullfeature, ultralow-power SLIC, solid-state ringing access relay, and line test matrix. It is part of a pinfor-pin compatible family of devices designed to serve a wide variety of applications. The L9311 is optimized for North American access applications where TR-57 longitudinal balance and GR-909 line test are required. Features SLIC s 5 V and battery operation s Optional automatic battery switch s 13 operational and test modes s Appropriate for 58 dB longitudinal balance applica- tions s Minimal external components required at all inter- faces s Ultralow power dissipation s Software/hardware adjustable dc parameters and supervision thresholds s Ground start Solid-State Ring Relay s Low impulse noise s Current-limited switches/thermal protection Line Test Matrix s GR-909...