I want to use HMC438 before clock buffer, say ADCLK946 or ADC9508.
1) The output of HMC438 is complementary to each other that is Out and out bar. My question is what is the differential impedance between them? Is it 100Ohm or 50 Ohm?
2) The output level of HMC438 is given -1dBm, so is it insertion loss of the device? or no matter how much ever input i give the output will always be -1dBm?
3) Question number 2 is common for HMC433 aswell