Connecting a pc to an amplifier using digital coax?

[Energize]

I have a 10m digital coax cable and a Denon 1507 amplifier and a souncard with a 3.5mm digital output. Can I just connect the coax cable to the 3.5mm connector, or do I need an adaptor for the sound card?

 

[Dr.EM]

I connected straight to my digital 3.5mm output (though via a coax to optical convertor since my MD player has only optical). Should work fine with a 3.5mm mono jack plug into the soundcard

 

[james.miller]

being 10m, make sure the cable is half decent shielded stuff, otherwise you may experiance the odd drop-out or two