The reference design use a 75ohm balun (ADT1-1WT) on DAC output.
Question 1: Why use a 75 ohm balun, not a 50 ohm balun?
Question 2: 50 ohm resistor is connected to the input of the balun,
The purpose of these 50ohm resistror is for matching to 50 ohm?
Question 3: Can we use 50 ohm 1:1 balun (TC1-1-13M) and remove the 50 ohm resistors?
Thank you in advance.