Digital cables: 75 or 110 ohms?


What are the applications in using a 75 ohms digital or a 110 ohms? I have seen that most RCA to RCA digital cables are 75 ohms and XLR to XLR are 110 ohms. Are they all made that way?

Thanks to all of you for your help,

Chris
tentrek

Showing 1 response by audioengr

The SP/DIF spec is 75 ohms, single-ended signalling. The AES/EBU spec is 100ohms balanced or differential signalling.