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IL6840

IK Semiconductor
Part Number IL6840
Manufacturer IK Semiconductor
Description Two-Tone Telephone Tone Ringer
Published Dec 20, 2005
Detailed Description TECHNICAL DATA Telephone Tone Ringer with Bridge Diode The IL6840 is a monolithic integrated circuit telephone tone rin...
Datasheet PDF File IL6840 PDF File

IL6840
IL6840

Overview
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.
• On chip high voltage full wave diode ...


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