Attached is a schematic which is mixing an audio signal from an MP3 player and PWM signal from a micro. I am using a single supply op amp MCP6001 to do the job.
I think i have most of the circuit figured out, but i need to know the best way to DC shift the audio signal so that it is centered at Vdd/2 so that it will not clip due to being near the negative rail(ground).
Sidequestion.
Is noninverting the best opamp configuration for this job? I could look at the non inverting configuration if it may be a better fit.
Thanks.
I think i have most of the circuit figured out, but i need to know the best way to DC shift the audio signal so that it is centered at Vdd/2 so that it will not clip due to being near the negative rail(ground).
Sidequestion.
Is noninverting the best opamp configuration for this job? I could look at the non inverting configuration if it may be a better fit.
Thanks.