AD9910 POWER-DOWN CONTROL

I check the following discussion.

http://ez.analog.com/message/9312#9312

If i use the Power-down function, remain the Register vlaue?

I want to control the DAC output as following.

1.Register setting(FTW,etc)

2.DAC output xMHz

3.Power-down and DAC output 0MHz

4.No Register setting(FTW,etc) & Power-up and DAC output xMHz

Which function mode I should set ?

• Digital core >>>ON?

• DAC >>>OFF?

• Auxiliary DAC >>>OFF?

• Input REFCLK clock circuitry >>>OFF?

To the above operation, only the FTW = 0?

Please advice for me.

Thanks.