Ad9122 data input

1、Do N data input port and P data input port of ad9122 control IOUTN and IOUTP respectively?

2、Is the IQ signal to be set up separately in FPGA, or only one channel of data will be created, and the data will be automatically divided into I channel and Q channel  in the chip?

3、If I use stm32f4 Series MCU with 168mhz clock frequency instead of FPGA, can I output 150MHz sine wave with AD9122?

Because I'm a beginner, I don't know many things. I may ask some low-level questions. Please forgive me.Thank you for your answer.