AD9219 Clock Sources

Hi, 

We often use a sine source to clock our high-speed ADCs.  You will see a description of that recommendation on page 37, and on page 41 there is a schematic of how we use a transformer and some Schottky diodes to transform to a differential signal and clip the sine source.   This preserves the high slew rate portion of the sine input without overdriving the clock input, thereby providing a low jitter clock to the ADC.  

Good luck with your design, 

David

Hi, 

We often use a sine source to clock our high-speed ADCs.  You will see a description of that recommendation on page 37, and on page 41 there is a schematic of how we use a transformer and some Schottky diodes to transform to a differential signal and clip the sine source.   This preserves the high slew rate portion of the sine input without overdriving the clock input, thereby providing a low jitter clock to the ADC.  

Good luck with your design, 

David