SPDIF coax cables

[Martin Czech]

> Does anyone know how SPDIF cables should be made up? I know there's 
> a requirement of 90ohm (?) impedance, but not how that is supposed to 
> be achieved...?
> 
> It seems noone around here actually stocks premade SPDIF cables...
> 
> 
> 
I simply use 0.5 m audio chinch cable, right from the shelf.  No
problems so far. The frequency should be about 1 MHz, this gives a
wavelength of about 300m (just order of magnitude approximation). So,
this cable is very short compared to lambda/4. No need for impedance
matching.


m.c.