I'm working on a ADC-AD9266 which gives output at a reference of Data Clock Output (DCO) whose frequency is same as that of ADC conversion rate which also the frequency of Clock. f(clock) = f(DCO) = ADC conversion rate.
I have used FXO Oscillator to clock the ADC. before I was using FXO-16MHz & I was getting DCO (16 MHz) which was correct. But due to some reason I needed to move down to lower data collection rate. So I used FXO-10 MHz IC but now the DCO signal has disappeared.
This was happening even before when I was using FXO-25 & FXO-16 but slightly change(7V-8V) in power supply gave me proper DCO signal.
The problem is, I'm not not getting DCO signal with FXO-10 IC (which was there when I used FXO-16). I'm not able to figure out the problem. connection are proper & no pins are short. I'm having doubt in current that is supplied to FXO or ADC. could there be any other reason because I have just replaced FXO-16 by FXO-10 IC.