The AD9106 TxDAC® and waveform generator is a high performance, quad digital-to-analog converter (DAC) integrating on-chip pattern memory for complex waveform...
AD9106 on Analog.com
What is the AD9106 output state on power up?
It sits at 0 ma at power up. Once pattern generation is started in will sit at IOUTFS/2 when no pattern is being played from SRAM and/or DDS.