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U4076B-FL - Three-Tone Ringer for Telephone Sets

Datasheet Summary

Description

The three-tone ringing integrated circuit U4076B, in conjunction with a piezo transducer or loudspeaker replaces the normal electromechanical telephone bell.

It is operated with the ringing current from the exchange.

Features

  • D Three-tone ringing sequence with 800 Hz, 1067 Hz and 1333 Hz D Clock oscillator with ceramic resonator or LC series cct possible D Sequence frequency adjustable between 2.5 Hz and 25 Hz D Input protective diode D On-chip rectifier bridge D Protection circuit against ringing in a parallel circuit D D D D D Adjustable volume Push-pull output stage Piezo transducer or loudspeaker connection Common input for frequency and call recognition Reduced pulse duration for electromagnetic transducers.

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Datasheet Details

Part number U4076B-FL
Manufacturer TEMIC Semiconductors
File Size 90.25 KB
Description Three-Tone Ringer for Telephone Sets
Datasheet download datasheet U4076B-FL Datasheet
Additional preview pages of the U4076B-FL datasheet.

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U4076B Three-Tone Ringer for Telephone Sets Description The three-tone ringing integrated circuit U4076B, in conjunction with a piezo transducer or loudspeaker replaces the normal electromechanical telephone bell. It is operated with the ringing current from the exchange. There is also a possibility of operating the IC with the dc supply voltage, being developed for large operating range. The integrated circuit is overload protected. Features D Three-tone ringing sequence with 800 Hz, 1067 Hz and 1333 Hz D Clock oscillator with ceramic resonator or LC series cct possible D Sequence frequency adjustable between 2.
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