ADRV9009 MCS and RF PLL Phase Sync Question

l312361206 said:

Should I use both TALISE_enableMultichipSync() and TALISE_enableMultichipRfLOPhaseSync() for mcs and RF PLL sync?

Yes. Your third sequence is correct. You have to first run MCS to set JESD204B deterministic latency using SYSREF signal pulses as normal. Then you have to run RFPLL phase synchronization that uses existing signaling and the SYSREF signal to accomplish LO phase synchronization.

Hope you are sending the SYSREF's after the MCS as per the JES204B API Initialization sequence given in UG.

Hello srimoyi,

TALISE_enableMultichipRfLOPhaseSync() must be called INSTEAD of TALISE_enableMultichipSync() or shall we call both of them ?
We found a power point document telling to call one instead of the other, but your answer says to call both of them.

www.analog.com/.../Talise_Release_6-0_Customer_ Release_ Notes_3-6-0-6.pdf


can you tell us when to call each ? I mean at what point inside the initialization procedure

Thanks

BR

  Pietro

You have to run both the MCS as well as RFPLLMCS. MCS is meant for baseband synchronization and RFPLL is meant for RFPLL synchronization.

Sequence to run MCS:

Initialize all devices in system using TALISE_initialize() 2) Run TALISE_enableMultichipSync with enableMcs = 1 3) Send at least 4 SYSREF pulses 4) Run TALISE_enableMultichipSync with enableMcs = 0 5) Run ARM cals and continue to active Transmit/Receive.

Sequence to run RFPLL MCS:

1) Initialize all devices in system using TALISE_initialize() 2) Run TALISE_enableMultichipRfLOPhaseSync with enableDigTestClk = 1 before TALISE_runInitCals() 3) Send at least 3 SYSREF pulses 4) Run TALISE_enableMultichipRfLOPhaseSync with enableDigTestClk = 0 5) Send at least 3 SYSREF pulses 6) Continue with init sequnece ...Run initCals, bringup JESD, etc

You have to run both the MCS as well as RFPLLMCS. MCS is meant for baseband synchronization and RFPLL is meant for RFPLL synchronization.

Sequence to run MCS:

Initialize all devices in system using TALISE_initialize() 2) Run TALISE_enableMultichipSync with enableMcs = 1 3) Send at least 4 SYSREF pulses 4) Run TALISE_enableMultichipSync with enableMcs = 0 5) Run ARM cals and continue to active Transmit/Receive.

Sequence to run RFPLL MCS:

1) Initialize all devices in system using TALISE_initialize() 2) Run TALISE_enableMultichipRfLOPhaseSync with enableDigTestClk = 1 before TALISE_runInitCals() 3) Send at least 3 SYSREF pulses 4) Run TALISE_enableMultichipRfLOPhaseSync with enableDigTestClk = 0 5) Send at least 3 SYSREF pulses 6) Continue with init sequnece ...Run initCals, bringup JESD, etc

But if I have to perform both synchronizations MCS and RFPLL what shall I do ?

call both the API in the same init procedure ?

Pietro

Yes you can do that in the same init script.

Hi srimoyi,

It's good luck to so many useful suggestions about MCS. I have a question that what does Initialize all devices in system using TALISE_initialize means?""

For example, I have one zcu102+two adrv9009s, does it mean that I should TALISE_initialize the first board and then the second board and then do chips MCS? like the figure below?

No. You need to initialize as well as trigger MCS for all the boards in the system at the same time

You mean that I should TALISE_initialize the first adrv9009 and then do MCS, and then TALISE_initialize the second adrv9009 and then do MCS again, is it right?

Yes. You can initialize and run MCS for the two boards one after the other.

I think you need to run them at the same time,

ez.analog.com/.../361869

you are right