Re: searching better alternative for LM386

Tim,

So, basically I'm looking for a better audio amp, similar to the LM386
but with lower noise.

Classic answer for "more power than a LM386" is a LM383,

I didn't ask for "more power than an LM386", I asked for lower noise.

but there's ZERO reason for putting this much power into headphones.

As I clarified in my later post to Phil the high power pulses are only
for very brief periods of time.

The audio power level given to the patients is decided by the doctors,
not by me. My device just has to able to support the specified maximum
range: 105 dB nHL, which corresponds to something on the order of 140
dB RMS SPL, depending on frequency and toneburst shape.

Currently they are doing the same thing with big wall-powered devices,
I'm merely implementing the same functionality (with the same
specifications) in a portable battery-powered design.

LM4881 is very worthwhile as a headphone amp, plenty of power, much
less noise than a LM386.

Thanks for the suggestion, I'll look into it.

greetings,
Tom

.

Relevant Pages

  • Re: searching better alternative for LM386
    ... I didn't ask for "more power than an LM386", I asked for lower noise. ... My device just has to able to support the specified maximum ... The LM4881 is IIRC a member, a member of National Semiconductor's "boomer" ...
    (sci.electronics.design)
  • Re: searching better alternative for LM386
    ... I didn't ask for "more power than an LM386", I asked for lower noise. ... The low-end of TDA series audio amps ... replacement parts chain rather than the design parts chain. ...
    (sci.electronics.design)
  • Re: searching better alternative for LM386
    ... but with lower noise. ... ZERO reason for putting this much power into headphones. ... He also has demonstrated fuck all common sense or basic honesty. ...
    (sci.electronics.design)