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ADL5385 modulator phase reset

Question asked by scorpiomilo on Jul 22, 2015
Latest reply on Aug 19, 2015 by THA

Hello,

I am trying to build a multichannel RF transmit system. I am using ADL5385 as IQ modulators to vary the amplitude and phase of each channel.

The problem I am having is: whenever the modulator is powered on, it resets the output phase to be either 0 degree or 180 degree. As a result, the phase difference between the multiple channels could be either 0 or 180 degree, randomly.

So is there a way to overcome this and set the phase to 0 degree everytime I power on the device?

Thank you!

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