L9218A Datasheet | Agere Systems

Features s Basic forward battery only SLIC functionality at a low cost s Pin patible with Agere Systems Inc. L9219 and L9217 SLIC s Low active power (typical 138 m W during on-hook transmission) s Low-power scan mode for low-power, on-hook power dissipation (59 m W typical) s Minimal external ponents s Distortion-free, on-hook transmission s Convenient operating states: - Forward battery low current limit - Forward battery high current limit - Low-power scan - Disconnect (high impedance) s Adjustable supervision functions: - Off-hook detector with hysteresis - Ring trip detector s Logic controlled high and low current limit s Two gain options to optimize the codec interface s Thermal protection with thermal shutdown indication Description This general-purpose electronic subscriber loop interface circuit (SLIC) is optimized for low cost, while still providing a satisfactory set of features . The L9218 is...