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CC2564B power consumption increased(compare with CC2564)

Other Parts Discussed in Thread: CC2564

Hi~

 I'm working on a watch project using CC2564, for some reason,i replace it with CC2564B,but the power consumption increase from 300uA to 900uA without any else changes.(BLE/BR/EDR not connected,No Inquiry/Page/Advertising)

so i wonder is these anything i can do to reduce the power consumption back to 300uA? 

If the power consumption is from SBC module, how to close this module?