Audio Amp Recommendations

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jefflongo

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Hey, I'm currently learning to design custom PCBs. I'm going to integrate an audio amp into my current project and I am trying to decide from the plethora of options online. Anybody have any recommendations? I'm not implementing a headphone jack and haven't decided on speakers; I am just looking for one that will give me good audio quality, is relatively simple, has a mute function, and being able to use a slider for volume would be a plus, though I'm sure I could implement a conversion from analog to digital volume control.
 

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Anything wrong with using a PAM8803? I mean it fits all your needs, and very easy to intergrate
 

JacksonS

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I think the LM49270 is a good choice even without the headphones. It requires very few external components except for the microcontroller. My code has slider functionality too.
 

jefflongo

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Hmm.. I still think that amp might still be a bit overkill for my needs. I've been looking at some different PAM variations, and these three seem to have analog volume control and a mute function.

https://www.diodes.com/assets/Datasheets/PAM8603M.pdf
https://www.diodes.com/assets/Datasheets/PAM8001.pdf
https://www.diodes.com/assets/Datasheets/PAM8008.pdf

Though I'm not sure what the differences are aside from the 8001 being 2W/ch as opposed to 3W/ch. Do these look good/simple to use? Has anyone used any of these before? Where is the sweetspot of power/channel? How should the power rating for your speaker match up with the power output per channel?

EDIT: I think I'm going to go with the PAM8603M unless there are any reasons I shouldn't
 
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Sorry to be a newb, but can't you just add a pot to the input line, and have analog volume control for any amp? How do these PAM chips handle it differently having it "integrated?"
 

splain

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Ok. Or a stereo pot if someone still wanted to use a PAM8803 with analog controls
 
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