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CC2540 TX Power Test

Other Parts Discussed in Thread: CC2540

hi,

The CC2540 is under the MP status at my customer side, they did the RF TX power verification, they set the TX power as -2dBm, but they got 2 chip can't meet to the value, they got only -2.23dBm. Customer judge these 2 chips is fail, and they also mount these 2 chips to another PCBA,  got the same result of -2.23dBm. Is it really fail? if not, how is the exact RF TX Power tolerance of CC254X? 

the fail rate is 2/377 = 0.59%