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2 x ADF4159 synchronization

Question asked by fdenjean on Dec 5, 2013
Latest reply on Jan 3, 2014 by fdenjean

Hello,

I am trying to synchronize the ramps of 2 ADF4159.

As one is called "Master" and output the sync pulse on MUXOUT, the other one, "slave" should be synchronized via de Txdata input.

In open loop configuration, the MUXOUT shows a 2V pulse, it's OK.

When looped back to Txdata, only 0.3V...

There is a mismatch in the interface circuit, and no real information in the datasheet.

So, what is the best way to interconnect the 2 ADF4159?

 

Regards

Frederic DENJEAN

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