Could you tell me what sequence do i program the registers of HMC765 and HMC820 (for example: with ADF4159: write reg R7,R6,R6,R5,R5,R4,R4,R3,R2,R1,R0)? Or Can i set registers with any sequence?
And could you share with us "recommended PLL register Set text File" of these ICs?
Thank in advance!
In general you can program registers in any order except Reg 0x03 and Reg 0x04 should be programmed last. These registers configure the frequency. The HMC820 has an additional requirement to set Reg 0x05=0x05 after all previous writes to Register 0x05 (see section 4.19 in the User Guide).
Keep in mind Reg 0x00=1 resets all HMC765 registers to their default values. Similarly Reg 0x00=1 resets all HMC820 registers to default values.
I've attached example configuration files included with the eval software for both parts. These files have additional instructions for the eval board software which are not actually sent to the device during configuration.
Thank you very much dyoung1,
Please attached example configuration files for HMC765 and HMC820 (f0/2 mode board). File which you attached is only HMC820 (f0 mode).
I've attached the missing file...