[SI-LIST] help in split planes for analog & digital pins of ADC

 
________________________________

 
Hi all 

I am designing a low noise board for AD9244 ADC .   the ADC have AGND &
GND pins  
should I split the ground plane under the ADC for dig. pins and ana.
pins  ,and than connect the plan together near the power supply 
or should it be one plane all the way ? -( the dig. pins are connecting
to a noisy fpga & then to USB controller)  .
 
 thanks  in advance

 

 Moshe Frid

Senior PCB Designer

Adcom Computers and Communications

17 Ha'Tidhar St. Ra'anana

Israel 43665


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