SL2418 Description
SL2418 Telephone Tone Ringer with Bridge Diode The SL2418 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 posed of a high frequency (fR) alternating with a low frequency...