I am using 25MHz crystal as REF_CLK input. When I power on all voltage inputs of DDS except DVDD 3.3V , at REFCLK_OUT I am seeing 25MHz signal output. When I connect DVDD 3.3V pin then the signal goes off. Is this normal ?
After power on all the voltage inputs, I am doing a master reseting and then at SYNC_CLK pin I am seeing some signal which is changing 43 to 62 MHz but it should be 25/8 MHz, right ? Should I do something to start it properly with XTAL input ?