Power amplifer for mobile phone ??

[electroconico]

Hi !

I'm looking for an audio amplifier for mobile phone.
Single ended input
Power out : 1W@8 ohms
Vsupply 2.5v-4.1v

I tested lm4670 but it does not work as espected.

The audio comes from the PWM microcontroller module and it's filtered by RC filter.

Any tip ?

Regards!

 

[tigox]

Hi !

I'm looking for an audio amplifier for mobile phone.
Single ended input
Power out : 1W@8 ohms
Vsupply 2.5v-4.1v

I tested lm4670 but it does not work as espected.

The audio comes from the PWM microcontroller module and it's filtered by RC filter.

Any tip ?

Regards!

Have a look at the LM4863: http://www.ti.com.cn/cn/lit/ds/symlink/lm4863.pdf

 

[doctormord]

PAM8403:

http://diodes.com/datasheets/PAM8403.pdf

 

[electroconico]

Now it's working good.It was the home made pcb

Thanks for reply.