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synchronzation between Ad9910

Question asked by LLDKong on Feb 4, 2016
Latest reply on Feb 16, 2016 by JLKeip

Hi all,

  I am going to synchronize two multiple AD9910. By readying the manual, it suggests to use a clock distribution chip for clock sync and the master's SYNCOUT-, SYNCOUT+ should be connected to SYNCIN-, SYNCIN+ for slave.

 

I don't have the clock distribution so can I direction connect the SYNCOUT to SYNCIN? Should I ground all SYNCOUT- to GND of the chip or just let it float?

 

I am still don't quite follow how to set it up, do I really need SYNCOUT- and SYNCOUT+ and SYNCIN- and SYNCIN+? I saw the SYNC_CLK output from pin 55, can I connect this (from master) to the slave's SYNCIN-/+ to make it work?

 

Actually, I started my project with PCB not the eval board. But I finally find that the SYNCOUT and SYNCIN pins are not lead out to somewhere after the PCB is done and chip are soldered. I need to solder those pins out, I wonder if there is any type of cable can be used for that small pitch.

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