I have connected a PGA2310 to the arduino as described on http://nospecifictopic.blogspot.com/2011/01/controlling-pga2310-with-arduino.html. I have then added power and audio, and thats it. But trying to connect the amp just gives me a very loud buzz. I measured the audio out lines, and got 11.5V. That cant be right?
Ive attached a diagram of my own connections. What am I doing wrong?
Sorry if this is a really stupid question, but Im new to this and Ive been trying for hours with no luck.