HMC1056 As Vector Modulator

Document created by analog-archivist Employee on Feb 23, 2016
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The HMC1056 is listed both as a IQ downconverter and a IQ upconverter.There are
little information regarding the  the upconverter application - can the HMC1056
be used as a vector modulator? Is the conversion gain equal to the gain from
I/Q ports to the RF-port? What is the required input level on the I/Q ports in
this application?


HMC1056 is a passive IQ mixer, so it can work as up-convertor as well as
If you are using it is an up-convertor the maximum IQ power depend on the P1dB
(usually) which is about 8dBm (page 7) if using similar IF frequency as on page

The mixer will have conversion-loss so no gain out of the mixer and the minimum
IQ input is depend on what amplitude you want at the RF output. (RF power
output = IQ input power – Conversion Loss)