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AD9252 clock power supply

Question asked by asadi.siyavash on Aug 12, 2016
Latest reply on Aug 15, 2016 by DougI


Hi,

I am new to high speed ADC. I want to use 3 AD9252 adc in my board with XC6SLX100 FPGA. I have some questions about power supply. as mentioned in datasheet it is better to use seperate power supply for analog and digital part so I used two ADP3339AKCZ-1.8 . Is it necessary to use two regulator for each ADC?

also in "Clock Jitter Considerations" mentioned "Power supplies for clock drivers should be separated from the ADC output driver supplies to avoid modulating the clock signal with digital noise." does it mean clock power supply should be same with Analog part?

Any help would be greatly appreciated,

best regards,

Siyavash.

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