Hi, all. We're developing a frequency synthesizer using HMC733 and ADF41513.
HMC733 datasheet promise around Vtune of 18V for output of 20 GHz. But we observed 21.2 V for output of 20 GHz.
(we measure Vtune and output freq. as dot in the illustration above)
Does out-of-spec Vtune affect output power? The output power is -8.2 dBm after power splitter(EP2k-19+) and dc-block cap.
We would also like to check if this is caused by device aging. The lot number is HV64.