Other Parts Discussed in Thread: LMH2110
Dear TI,
I'm using the power detector to measure power in the IF sat band 950-2150.
When there is one CW at 1GHz I have a voltage X coming out of the detector.
When I add a second carrier at 1.01 GHz with exactly the same RF power, I expect I will have an output voltage of X+3dB, but the output voltage doesn't change, even when I add a third carrier, the output voltage doesn't move...only when I move away my second carrier far enough from the first one (>400MHz), I notice a rise in the output voltage, but still not 3dB...
I have already tried to change the output capacitor from 0 to 100nF, but that didn't change the behavior, seems logic as the carriers are unmodulated.
Can you explain why I didn't see any rise of the output voltage when I add a second carrier with equal RF power ?
Thanks, kind regards, Koen.