I'm building a simple analog mute circuit and I need advice on the simplest way to achieve my goal.
I have a GPIO pin that goes high when audio is playing and low when it's not. When audio is not playing, I need to connect AGND to the L & R channels of the audio circuit.
Obviously, I could do this with a transistor if the GPIO pin were reversed, but it's not. Is there an Active-Low component that I can use to achieve this goal? Preferably something in a small form factor.
EDIT: The audio circuit is driven by a PCM5102A DAC. It's a 2.1v RMS single-ended line driver that is ground centered. I do not believe there is DC Bias.