Dac problem ,I need help

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my dac project is dac7
I can't choose from 1XSAA7350+2Xtda1547 and 2XSAA7350+2Xtda1547 !,someone can give me some advice?
and I want to bypass internal OPAMP,Two tda1547s and 8 pins current output,can these parallel connect?
someone can give some schematic?
help! :)
 
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