ADRF6780 BB I/Q amplitude

Hi everyone, can you tell me please my calculations are correct?

1. 15 dBm differential sine waves at external 100 Ohm resistor is equivalent to -12 dBm total power at differential input.

2. 12 dBm at external 100 Ohm resistor is ~0.22 V peak to peak (i.e. 0.39 to 0.61 V (with 0.5 V DC bias) in each single line).

3. 0.22 V =-13 dBV (100 Ohm)

4. -13 dBV + (10~13)dB VGain=-2~0.9 dBm (100 Ohm)