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L9500A - High-Voltage Ringing SLIC

Description

This device is optimized to provide battery feed, ringing, and supervision on short-loop plain old telephone service (POTS) loops.

This device provides power ring to the subscriber loop through amplification of a low-voltage input.

Features

  • s Differential ringing and codec interface 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 Eight operating states:.
  • Scan mode for minimal power dissipation.
  • Forward and reverse battery active.
  • On-hook transmission states.
  • Ground start.
  • Ring mo.

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Datasheet Details

Part number L9500A
Manufacturer Agere Systems
File Size 364.25 KB
Description High-Voltage Ringing SLIC
Datasheet download datasheet L9500A Datasheet
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Full PDF Text Transcription

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Preliminary Data Sheet September 2001 L9500A High-Voltage Ringing SLIC for VoIP Applications L9500A Introduction The Agere Systems Inc. L9500A 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 device has the capability to operate with a VCC supply of 3.3 V or 5 V and is designed to minimize external components required at all device interfaces.
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