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HMC7043 SPI problem - no response

Question asked by gkasprow on Jul 11, 2017
Latest reply on Jul 12, 2017 by kpeker

I'm fighting with HMC7043 SPI.
Don't get any response, the chip does not react to ID readout nor setting of GPIO.
I  generated example configuration using ADI tool - still no response. The chip keeps the data line Hi-Z all the time. I even configured GPIO as SPI data output but still no response.
I observe all SPI signals at the chip leads, power supply, reset are OK.
Maybe it needs RF signal for SPI operation ?

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