which chip can be used to get the phase difference from two 10G RF sine wave ? the two 10G RF sine wave may have diffenent amplitute,and the accuracy of the phase difference need to be highly limited.can you recomment a proper chip? thanks!
I'll look around, but I do not think we have a single chip solution for that.
I searched the phase detector and phase locked amplifier that could meet two 10G RF signals before ,but I have not found until now. thank you for your help.
You could use the technique described in the attached article. Unfortunately, this circuit only works up to 6 GHz, so you would need to add a two mixers and a PLL VCO to mix the two signals down to a frequency below 6 GHz. HMC558A might be a good mixer choice and look at ADF5355 to provide the LO.
Thank you very much. This did help me a lot.According your proposal,the whole system will be much complex .So could you help me to find a solution that can meet the 10G sine input RF signals.
An image reject mixer like HMC1113 (www.analog.com/hmc1113) can be operated as an IQ demodulator. So this would simplify things and would eliminate the need for the mixer down-conversion stage.
thanks for you help
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