LE79555-2BVC 参数 Datasheet PDF下载

Le79555

Ring-Trip Detector

Data Sheet

During the Ringing state, the DA pin is more positive than the DB pin, and the DET pin will show high to indicate the on hook.

When an off hook condition occurs, the DB pin becomes more positive than the DA pin, and the DET pin will go low to indicate

an off-hook.

Ring Relay Driver

The ring relay driver is active only in the Ringing state.

Relay Driver

A relay driver is activated by logic Low at either input pin, D1, or D2. D1 controls relay driver RYOUT1; D2 controls relay driver

RYOUT2.

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Zarlink Semiconductor Inc.