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can LM 4663 connect with LM 386 to eliminate noise?

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audioguru

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I have always wondered if I go deaf will I make my own cheap amplifier with a microphone and headphones? The size of a book? Replace its battery every day?
Luckily i can still hear perfectly.

I have always wondered if I go blind with cataracts will I get the lenses replaced with surgery? I did get blind, had the surgery and my new vision is absolutely perfect!
 

audioguru

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Your choice depends on where in this world you are located. Some countries are 100 years or more behind mine. Vacuum tubes. Flags?
 

elnino86

New Member
I get what you mean sir.Im not able to do a digital hearing aid based on DSP technique becuase of it cost and time is limited for me.I need to order a DSP chip from TI which capable for my project but to learn the programming will take quite a time to learn.
 

audioguru

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The LM386 doesn't have any theory. It is just a simple audio low power amplifier and its datasheet tells all about it.

Its output power is only 0.25W to 0.5W at clipping depending on the power supply voltage into an 8 ohm speaker.
Its voltage gain is adjustable from 20 to 200.
Its input resistance is 50k ohms.
 

elnino86

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