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AD9637 channel to channel amplitude unbalance is 6dB

Question asked by pxzhang on Mar 30, 2016
Latest reply on Mar 31, 2016 by DougI

when using AD9637 to perform IF sampling,I found that channel to channel amplitude unbalance is 6dB max,the IF frequecy is 260MHz.The front analog is typical RF transform circuit (datasheet p19,figure 47) with TC1-1T+.when setting IF frequecy to 5MHz,amplitude unbalance is 1.5dB max.What will cause this problem?

thanks!

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