I am designing an ADC interface for sampling 70MHz analog input signal at 100MSPS using AD9643. I have planned to use double balun transformer coupling for better SNR performance since my analog input frequency comes in the second nyquist zone. I have planned to use ETC1-1-13TR and i have also attached a snap of the circuit. Kindly advise that can ETC1-1-13TR transformer can be used for this application.
Thanks in advance.