LM4960 Piezoelectric Speaker Driver
October 2004
LM4960 Piezoelectric Speaker Driver
General Description
The LM4960 utilizes a switching regulator to drive a dual audio power amplifier.
It delivers 24VP-P mono-BTL to a ceramic speaker with less than 1.
0% THD+N while operating on a 3.
0V power supply.
The LM4960’s switching regulator is a current-mode boost converter operating at a fixed frequency of 1.
6MHz.
Boomer audio power
amplifiers were designed specifically to provide high quality output power with a minimal amount of external components.
The LM4960 does not require output coupling
capacitors or bootstrap
capacitors, and therefore is ideally suited for mobile phone and other low volta...