pt2399 echo application circuit
the pt2399 application circuit litteraly copied on fritzing (pcb view) (front view )
check "pt2399 echo application circuit" and forums to have more informarmations about this and the d-ground thing (digital ground)
the pt2399 application circuit litteraly copied on fritzing (pcb view) (front view )
check "pt2399 echo application circuit" and forums to have more informarmations about this and the d-ground thing (digital ground)