sound card digital out help needed

I have a sound blaster audigy 2 sound card. It has a 1/8th inch digital out on the card. I want to connect it to my rca type coaxial digital input on my stereo receiver. I have been able to find the rca type digital coax cable to use, however I'm unsure on the adapter I need to connect it to the sound card.


I've seen seen stereo to mono adapters, but will this work? I want to be able to use my dolby surround and such. So will this type of adapter lose my surround sound?

Much thanks for any help on clearing this dilema up

Thanks

Matthew