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CC8520 Problem.

Other Parts Discussed in Thread: TLV320AIC3104, CC8520

 Hi,

 

I have CC8520 and TLV320AIC3104 audio codec. I made 2 layer PCB for CC8520 and 2 layer PCB for TLV320AIC3104 as datasheet and referance design show. When i try to connect two CC8520 with codec, they find network and i can have audio. But after a few minutes or if i touch the ground of the PCB with a metal, i lose audio; but network indicator led stay on ( it means there is a network connection ). If i hold PCB ground with my hand and touch PCB with a metal, it continues working. Exposed pad of CC8520 is well soldered. What can be the problem?

 

Thanks

  • Hi Saci,

    This seems more like a design and grounding issue. Can you please upload your design files/schematics for the 2 boards so that it can help to find the error.

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