L9215G - Agere Systems

L9215G Short-Loop Sine Wave Ringing SLIC

Data Sheet September 2001 L9215A/G Short-Loop Sine Wave Ringing SLIC Introduction The Agere Systems Inc. L9215 is a subscriber line interface circuit that is optimized for short-loop, power-sensitive applications. This device provides the complete set of line interface functionality (including power ringing) needed to interface to a subscriber loop. This d.

Features

s Onboard ringing generation s Three ringing input options: — Sine wave — PWM — Logic level square wave s Flexible VCC options: — 5 V or 3.3 V VCC — No
  –5 V required s Battery switch to minimize off-hook power s 11 operating states: — Scan mode for minimal power dissipation — Forward and reverse battery active — On-hook transmission states — Meter pulse states — Ring mode — Disconnect mode s Ultralow on-hook power: — 27 mW scan mode — 42 mW activ.