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Author Topic: 11.5V on PGA2310 audio output  (Read 999 times)
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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.

Thanks!


* pga2310pa_1_bb.svg (344.74 KB - downloaded 13 times.)

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« Last Edit: April 10, 2011, 12:43:57 pm by opet » Logged

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It seems considering datasheet of this IC that you need to provide an balanced power.

You need +15v AND -15V. Considering your schema you provide only +15v and a ground !!!

You must do another way to power it with 7815 and 7915 IC's. (google it for more explanations).
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