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TAS2562YFPEVM-DC: TAS2562 EVM DISCONNECTED EVERY FEW SECONDS!!!

Part Number: TAS2562YFPEVM-DC
Other Parts Discussed in Thread: PPC3-EVM-MB

Hi there, 

I'm testing the output power of TAS2562YFPEVM-DC & PPC3-EVM-MB connected with a 4ohm resistance which is powered by a DC source 5V 2A. However, when I modified the input source level of a sine 1kHz signal from -20dBFS to 0dBFS, the board will be disconnected any moment. The board will be disconnected during a sweep signal as well. With this disconnection problem, I can't tell if this amplifier can reach an output level of 1.5W 4ohm or not, and I can't test the compression result. You can find the AP settings and board photo below. The FW is just the default new file.
93616b3c-2120-4295-a81f-bd92e25eae57.jpg 
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