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Using AC reference with AD5543

I'm planing to use an  AC signal (10Vp-p without DC bias) as Vref. But haven't seen any doc mentioned this. The most similar one is  "Multiplying DACs—AC-Arbitrary Reference Applications", but the 'AC references' mentioned in it's examples are all positive ones. So I'm not sure if I can use a 'zero-centered' AC signal as Vref. And if I can, what should I take care comparing with the 'fixed reference' usage?