PWM Audio Filter + Amp Stereo
Posted: Thu Mar 09, 2017 8:50 pm
I'm creating an AIO-style PCB (I want to learn, so I'm creating my board). I'm using a raspberry PI zero.
To create the audio, I chose the PAM8403 IC because it is a stereo. First I made the pwm filter for raspberry using pins 0 and 1. Soon after the signal was sent to PAM8403. Is the schematic correct?
Another question is about the headphone, I have read a lot about it, but I did not understand and I could not find a solution to put a p2 jack for headphone because the ground is not common for L and R.
Sorry, I'm graduated in software development, I'm self-dictated in electronics.
My schematic:
To create the audio, I chose the PAM8403 IC because it is a stereo. First I made the pwm filter for raspberry using pins 0 and 1. Soon after the signal was sent to PAM8403. Is the schematic correct?
Another question is about the headphone, I have read a lot about it, but I did not understand and I could not find a solution to put a p2 jack for headphone because the ground is not common for L and R.
Sorry, I'm graduated in software development, I'm self-dictated in electronics.
My schematic: