ADRF6780 BB I/Q amplitude

heavysci
on Jan 18, 2019

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)