IL6840 - Two-Tone Telephone Tone Ringer

Datasheet Summary

Description

The IL6840 tone ringer derives its power supply by rectifying the AC ringing signal.

It uses this power to activate two tone generators.

IK Semiconductor

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Datasheet Details

Part number	IL6840
Manufacturer	IK Semiconductor
File Size	299.66 KB
Description	Two-Tone Telephone Tone Ringer
Datasheet	IL6840 Datasheet
Additional preview pages of the IL6840 datasheet.

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Full PDF Text Transcription

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TECHNICAL DATA Telephone Tone Ringer with Bridge Diode The IL6840 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.

Published: Dec 20, 2005 |