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Register configuration issues on the HMC764

Question asked by pasqal on Feb 21, 2017
Latest reply on Mar 6, 2017 by MRichardson

Find a typical register configuration for integer division.
Now no matter how many of the registers of the N divider ,the vco are oscillating at around 7.5GHz.

Phase frequency is 10MHz and  reference input is 50MHz.

The following is my register configuration:

02h <= 5d(R divider is 5)

03h <=  770d(N divider is 770,expected RF out is 7.7GHz)

04h <= 0

05h <= 50894C

06h <= 703387

07h <= 4FA

08h <= 31DF

09h <= 900000

0Ah <= 0

0Bh <= 72

0Ch <= 0

0Dh <= A

 

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