QI want to be able to use AD9788 both as a dual 16 bit 800MSPS DAC only (without
the NCO) and as dual 16bit 800MSPS DAC with NCO.
But, I can't find any register to bypass the NCO.
AThe NCO can be bypassed, if FTW (Reg0x0A) is set to 0 (default), the NCO is
disabled and bypassed.