Hello! I'm amplifying an audio signal using the LM386 in its "Minimum Parts" configuration, as given on its datasheet, but I'm getting a DC offset of about 1V. The problems with this are that a) it appears to limit my output gain, and b) I believe it will lead to a hum in the output signal.
I'm wondering why this is happening, and what I can do to fix it? (On the datasheet, I read about an output bias of half the supply voltage, but I'm using a supply voltage of about 8 V.)
My specific application is to amplify a short rectangular wave from 00.3 V to 0X V, where X can be set up to about 4 V (half of the supply).
Thanks for reading.
I'm wondering why this is happening, and what I can do to fix it? (On the datasheet, I read about an output bias of half the supply voltage, but I'm using a supply voltage of about 8 V.)
My specific application is to amplify a short rectangular wave from 00.3 V to 0X V, where X can be set up to about 4 V (half of the supply).
Thanks for reading.