AMC7823: pls help review schematic diagram designing and give same suggest ?

Hi Xiaofu,

This schematic looks good.  I do not see any major issue. 

You have a 10nF capacitive load on the DAC output, which is not really a problem, but I will caution that if the is any additional load, you could have stability issues.  I recommend 1Ω to 5Ω series resistance to help isolate the DAC from the cap load if you expect additional loading at the PA.

Thanks,

Paul