I am just trying to build a mixer circuit to change stereo to mono using a summing circuit for a project.
As shown by the drawing, I am using the lm386n-1 op-amp as an audio amplifier, with supply voltages of 9V and GND. When I apply an audio input, the output waveform is clipped at -40 mV for the negative component of the input waveform. There is no clipping on the positive component. Why is the output clipped to -40 mV when a negative voltage is applied?
The audio inputs are in mV range so I don't think the output will exceed the supply voltage.