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IL2418 - Telephone Tone Ringer with Bridge Diode

Description

The IL2418 tone ringer derives its power supply by rectifying the AC ringing signal.

It uses this power to activate two tone generators.

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Datasheet Details

Part number IL2418
Manufacturer Unknown Manufacturer
File Size 48.59 KB
Description Telephone Tone Ringer with Bridge Diode
Datasheet download datasheet IL2418 Datasheet

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Full PDF Text Transcription

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TECHNICAL DATA IL2418 Telephone Tone Ringer with Bridge Diode The IL2418 is a monolithic integrated circuit telephone tone ringer with bridge diode, when coupled with an appropriate transducer, it replaces the electro-mechanical bell. The device is designed for use with either a piezo transducer or an inexpensive transformer coupled speaker to produce a pleasing tone composed of a high frequency (fR) alternating with a low frequency (fL) resulting in a warble frequency. The supply voltage is obtained from the AC ring signal and the circuit is designed so that noise on the line or variation of the ringing signal can not affect correct operation of the device.
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