AnsweredAssumed Answered

How to let HMC765LPCE to identify which register to write from SPI command?

Question asked by liangbin on Jan 16, 2018
Latest reply on Jan 19, 2018 by liangbin

I would like to program the SPI (LE, Data and CLK) for the HMC765LPCE by using FPGA. I would like to achieve the output frequency of the PLL at 7912.5 MHz, is it correct to let R=1, Nint=158, and the Nfrac=2^22? How does HMC765 identify if I would like to program register 03H? This is not explained either in the datasheet or the operating guide. For ADF4108, it can identify which register to write given the control bits of C2,C1. Can you elaborate more on this for HMC765? 

Outcomes