WS2418 - TELEPHONE TONE RINGER
The WS2418 tone ringer device its power supply by rectifying the AS ringing signal.
It uses this power to activate two tone generators.
The two tone frequencies generators are switched by an internal oscillator in a fast sequence and made audible across an output amplifier in the loudspeaker, both t
WS2418 TELEPHONE TONE RINGER WITH BRIDGE DIODE 8 DIP The WS2418 is a monolithic integrated circuit telephone tone ringer with bridge diode, when coupled with an appropriate transducer, it replaces the electromechanical bell.
This 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 f
WS2418 Features
* ! ! ! ! ! ! ! ! ! ! On chip high voltage full wave diode bridge rectifier Low current consumption, in order to allow the parallel operation of the 4device Low external component count Tone and switching frequencies adjustable by external components High noise immunity due to built-in voltage current
