L7556 - Low-Power SLICs

Lucent Technologies

Datasheet Details

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

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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