AD9958/9 and 1:2 etc. Transformers

Dear all,

I have a AD9958 application (10-200MHz) where the output voltage swing after balun and filter could well do with a little boost. So I wondered if I could simply use a  1:2 transformer to double the voltage and thus get around an extra amplifier. Has anyone in here given this a try? This almost feels too simple to make any sense