There are many registers in adrf6720,I want to know the config order. Which one should be configed first,and which one is the second,and so on.
Please refer to the heading "Required PLL/VCO Settings and Register Write Sequence" on page 20 of the datasheet
" ...the last writes must be to Register 0x02 (INT_DIV), Register 0x03 (FRAC_DIV), or Register 0x04 (MOD_DIV). When Register 0x02, Register 0x03, and Register 0x04 are programmed, an internal VCO calibration initiates, which is the last step to locking the PLL."
This means the all other registers should be programmed before register 2, 3 & 4.
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