ELM412 Datasheet - ELM

ELM412 Piezo Element Driver

The ELM412 is an 8 pin oscillator circuit for driving piezo-electric elements. With the exception of one external resistor, all of the circuitry required to drive a typical piezo ‘bender’ is contained within this chip. This circuit allows the user to select one of eight possible operating frequencie.

ELM412 Features

* Low power CMOS design

* Wide supply range - 3.0 to 5.5 volt operation

* No external timing elements required

* Generates eight common piezo frequencies

* Bridged output for greater audio power

* Modified waveform for reduced harmonics Connection Dia

ELM412_ELM.pdf