I will quote from the link mentioned earlier. This is a CMRR measurement of the Shiit Midgard.
The images show the case where the impedance of the + and - lines are the same, and the case where 10 ohms is added to one of them.
Technically, we want to match the impedance. However, creating a separate cable for each device is cumbersome.
It would be great if the manufacturer could add the circuit shown in the attached application note.
The images show the case where the impedance of the + and - lines are the same, and the case where 10 ohms is added to one of them.
Technically, we want to match the impedance. However, creating a separate cable for each device is cumbersome.
It would be great if the manufacturer could add the circuit shown in the attached application note.