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ADL5375-05 not work with the IQ-input

Question asked by sunsong77 on Jan 17, 2018
Latest reply on Jan 25, 2018 by dmailloux

hello ADI engineers,

I draw the pcb as the ADL5375 datasheet like following figures, drive the circuit with 5-V source, the working current is about 230 mA, much higher than the given typical value as 194 mA. Is it normal? what's the problem.

I used the VSG keysight n5182a generated the 5-Mhz IQ signal with 1 Vpp and 0.5 V offset. Use E4438C generate a LO with 0dBm. However the output RF is just -20dBm and without bandwidth, it's like a leakage of LO.

Look forward to your reply.

Thanks a lot !