I have a LMC555 which generates a audio signal between 440-880 Hz. The signal is DC between 0-3V after the chip. To use it as input for an amplifier. The amplifier, a LM386N-1, starts clipping the signal quite early, somewhere around 20mV. Currently I use this solution:
I lack the really deep theoretical understanding. As I know, each resistor in series will increase the noise of the signal. Higher resistance will cause more Johnson–Nyquist noise.
Here I have a 1MΩ resistor in front of the amp input, so I wonder...
...is there an alternative solution to this which causes less noise?