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Making a toy sound pcb, LM4670 vs LM4675, Pros Cons?

Jameel Ahed
Prodigy 90 points
Other Parts Discussed in Thread: LM4675, LM4670

LM4670 vs LM4675, Pros Cons?

What are your thoughts???

I know LM4675 is more expensive and has only 2.7W. 

The LM4670 is cheaper and has 3W. 


The toy is played with outdoors, so I would like it to be loud!  Should I be using an 8 ohm speaker or a 4 ohm speaker?

Thanks!

  • 0
    TI__Guru**** 189399 points

    Hi, Jameel,

    LM4670 is not a focus device - for example, it does not show up in the parametric search, and it doesn't have an EVM.

    The LM4675 is a focus device - we have EVMs for it, etc, etc.

    As for your speaker choice, typically, 4 ohms will deliver more sound. Compare the SPL ratings of the speakers you are considering to get the loudest one possible.

    -d2