Triton posted this and i was wondering if i could swap the potentiometer with and how i could do that. I'm thinking of using tact switches. i don't really like the idea of knobby dial for the volume control.
Audio amp help
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Triton posted this and i was wondering if i could swap the potentiometer with and how i could do that. I'm thinking of using tact switches. i don't really like the idea of knobby dial for the volume control.
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Re: Audio amp help
could i enter this instead of the potentiometer? or would there be a simpler layout?
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Re: Audio amp help
No. That would not. If you are wanting to use tact switches to control the volume you will need a digital potentiometer. Life of Brian used one with a similar audio amp circuit on a recent project of his; I would start by looking for that thread. Also, that part is mislabeled in that diagram. It should be labeled lm386. Not sure if this will be any help to you but here is the datasheet. Your question could have probably been answered by finding that first.
And just out of pure curiosity and in the utmost respect, where did you get the idea that putting those tact switches would work?
And just out of pure curiosity and in the utmost respect, where did you get the idea that putting those tact switches would work?
Re: Audio amp help
idk, i'm a long lost 14 year old.
and i have no experience with this what so ever.
and i have no experience with this what so ever.
Last edited by ABCinc on Wed Mar 10, 2010 8:28 am, edited 1 time in total.
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Re: Audio amp help
would this be any good?
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Re: Audio amp help
Yeah for the digital potentiometer, it looks reasonable. Just for future reference, if you are asking for help with a specific part (i.e. that IC), post a link to the data sheet. It would make the life of anyone trying to help you easier. Again, I am not sure how or where you got that schematic, but here is the datasheet for that chip. On page four there is a sample schematic relevant to your interests.
Re: Audio amp help
Thanks!
this is how it should look right?
this is how it should look right?
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Re: Audio amp help
No. Have you even looked at either of those data sheets? Everything you need to know is there.Re: Audio amp help
okay, is this right?
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Re: Audio amp help
Nope, but you are getting there. All you need is to connect audio input to RH instead of D and not connect RH to the voltage source.
Re: Audio amp help
Like this?
Thanks a ton, this is my first time doing this, so it was all extremely confusing.
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Re: Audio amp help
an 8 ohm speaker would be good for this right?
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Re: Audio amp help
lol, thanks^ *Information above may be incorrect.* ^
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Re: Audio amp help
the ds1669 was $8, so could i use this? 37K8018
it's pushbutton activated and has all the same features.
if so, is this what it would look like, here is the datasheet...
http://datasheets.maxim-ic.com/en/ds/MA ... AX5457.pdf" onclick="window.open(this.href);return false;
it's pushbutton activated and has all the same features.
if so, is this what it would look like, here is the datasheet...
http://datasheets.maxim-ic.com/en/ds/MA ... AX5457.pdf" onclick="window.open(this.href);return false;
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