Audio amplifier advice

anthony conti

Other Parts Discussed in Thread: TPA2013D1, LM48310

Hello All,

I need some opinions, and/or advice.

I am designing an audio amplifier that has around 2.5W per channel. But I want it to be powered from Li-Ion batteries. I have 2 ideas.

Idea 1; use a "TPA2013D1" with one Li-Ion battery, for each channel. and use the on board DC-DC Boost converter.

Idea 2; use a "LM48310" with 2 Li-Ion batteries in series, and use a DC-DC Buck converter.

What would be the better option? The option with the best sound, least noise, best performance.. etc. Would there be a much better option out there? Any input would be great.

Thanks

Anthony

over 9 years ago

0 José Luis over 9 years ago

TI__Mastermind 20085 points

Hi Anthony

First of all, The TPA2013D1 has better SNR and PSRR than LM48310, and they have practically the same efficiency. second of all, The TPA2013D1 has a boost converter, this provides a louder audio output than a stand-alone amplifier connected directly to the battery. it also maintains a consistent loudness, regardless of battery voltage. The device helps extend battery life when playing audio.
Thus, I consider that the best option is the TPA2013D1.

Best regards
José Luis Figueroa de Lara
Audio Applications Engineer
Texas Instruments

0 anthony conti over 9 years ago in reply to José Luis

Intellectual 460 points

Jose,
Thank you so much for the input. That was my first choise, and I am glad I was right.
Thanks

Anthony

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