Thank you very much for your reply in detail.
I could understand well.
The customer wants to increase the sound pressure level and improve the sound (voice announce) quality.
For the sound pressure level increasing, is it better to use DRV2700…
We have done some experiments using the LM48560 to drive 3-pin piezo buzzers. Are you referring to piezo buzzers? This depend on the voltage required for the piezo. If you need >30Vpp for the piezo buzzer, then the DRV2700 device is the right…
We have a good relationship with PUI and it might be good to work with them on this application. I'm guessing this is for a piezo sounder application? Have you seen TIDA-00376?
Feel free to shoot me and Javier a message through email…