" he figure indicates a serially 390ohm resistor and a 91 ohm to ground, I don't know if the capacitor from the Toslink example should be removed or not though. BTW, would 0,6W resistors be fine?"

Those resistors would set the output impedance and voltage assuming the card itself isn't already doing that. The capacitor is just for decoupling of the power supply to the Toslink transmitters, that doesn't apply for the coax output. 0.6w resistors are more then enough, 1/4w units would be fine too.

Shawn

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