Greetings. I use LM386 to amplify my speaker and I follow the connection in the datasheet. Yet, there are humming noise. Do anyone can help me solve this?
thanks in advance
dyeatman
Joined: 06 Sep 2003 Posts: 1924 Location: Norman, OK
Posted: Fri Jun 18, 2010 5:51 am
Sounds like a power supply problem to me. However, this is a CCS
compiler rather than an electronics forum so that question would be
better asked in alt.electronics or a similar forum. _________________ Google and Forum Search are some of your best tools!!!!
SherpaDoug
Joined: 07 Sep 2003 Posts: 1640 Location: Cape Cod Mass USA
Posted: Fri Jun 18, 2010 1:40 pm
Most likely a power supply problem. Could the hum be at the D/A sample rate or PWM frequency? _________________ The search for better is endless. Instead simply find very good and get the job done.
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