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CC2640R2L: 当cc2640R2L的5x5封装发射功率调到5dbm,使用差分电路如何打开内部偏置电路

Part Number: CC2640R2L

看了下手册2640R2L的5x5封装最大发射功率能到5dbm,但是需要使用差分电路。看手册我理解的是能打开内部偏置从而减少外部电路(少接一个电感),请教下这个偏置如何打开,同时打开后会增加功耗吗?