L7554 - Low-Power SLIC

Lucent Technologies

Datasheet Details

This electronic subscriber loop interface circuit (SLIC) is optimized for low-power consumption while providing an extensive set of

s Low active power (typical 165 mW during on-hook transmission) s Sleep state for low idle power (76 mW) s Quiet Tip/Ring polarity reversal s Supports meter pulse injection s Spare op amp for meter pulse ﬁltering s.
24 V to.
72 V power supply operation s Distortion-free on-hook transmission s Convenient operating states:.
Forward powerup.
Polarity reversal powerup.
Forward low-power scan.
Polarity reversal low-power scan.
Ground start.

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