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6th December 2011, 06:57 AM
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diyAudio Member
Join Date: Nov 2006
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Power pins interconnection of a STA516B
I was wondering if any one could tell me if it is normal that the power pins of my STA516B are interconnected with each other.
I have measured a STA505 and those power pins where not interconnected. The problem with the interconnection is that i get noise when using it in 2 channel mode, or am I wrong? Just to clarify, with interconnection I mean: VCC1a and VCC1b are interconnected with VCC2a and VCC2b. GND1a and GND1b are interconnected with GND2a and GND2b. And of course I bench measured this bare chip without PCB. Maybe I have a counterfeit part? 
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