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CC2538: Dcoupl1 and Dcoupl2 PIN connection question

Part Number: CC2538


Hello e2e,

In CC2538 datasheet, Dcoupl1 and Dcoupl2 PIN connection has different explanation, could you help to check which is the right way? and is it a must to connect these two pin together? thanks.

1. in below diagram, Dcoupl1 and Dcoupl2 doesn't connect together.

2. in LP schematic and datasheet description, Dcoupl1 and Dcoupl2 connected together.

 what's the meaning of "stable operation" here?

thanks.