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L7557 Datasheet Low-Power SLICs

Manufacturer: Lucent Technologies

Overview: Data Sheet January 2000 L7556, L7557 Low-Power SLICs with Battery.

Download the L7557 datasheet PDF. This datasheet also includes the L7556 variant, as both parts are published together in a single manufacturer document.

Datasheet Details

Part number L7557
Manufacturer Lucent Technologies
File Size 487.35 KB
Description Low-Power SLICs
Download L7557 Download (PDF)

General Description

These electronic subscriber loop interface circuits (SLICs) are optimized for low power consumption while providing an extensive set of

Key Features

  • s Auxiliary input for second battery, and internal switch to enable its use to save power s Low active power (typical 125 mW during on-hook transmission) s Supports meter pulse injection s Spare op amp for meter pulse filtering s.
  • 16 V to.
  • 60 V power supply operation s Distortion-free on-hook transmission s Convenient operating states:.
  • Forward powerup.
  • Disconnect (high impedance).
  • 2-wire wink (zero loop voltage) s Adjustable supervision functions:.

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