Other Parts Discussed in Thread: LMH2832
I evaluated LMH2832-50 EVM with input signal of -44dBm at 45MHz. With GUI, I set the gain of 30dB but found output power of only -22dBm, only 22dB gain rather than 30dB. It looks like gain control is good from 30dB to -9dB but absolute gain is not there. Is this inherent to EVM that loose 8dB but will have 30dB gain with differential interface? Or something else goes on?
Also, about bias control at GUI, it does not change gain or linearity by changing the bias. Can you let me know what exactly the bias control helps?