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Is it possible to replace the VCO with an OCXO on the ADRV9009-ZU11EG on ADRV2CRR-FMC

Category: Hardware
Product Number: ADRV9009-ZU11EG, ADRV9009, ADRV9009

Hi, we have a high frequency application requiring tight frequency stability. To minimize drift:

  1. Can we simply replace the on board SoM VCXO with an OCXO?
  2. We see an reference input on the SoM and CRR boards but those paths appear to require a VCXO at the HMC7044 OSCIN. This appears to make it pointless to use an OCXO as a reference or have we misunderstood how the HMC7044 outputs are generated when provided and external reference?
  3. If option 1 is not possible, what is the recommended way to minimize frequency temperature drift?
  4. What is the onboard TCXO used for? And would that need to be replaced with an OCXO as well?

Your assistance is highly appreciated.

Add question about TCXO
[edited by: EdwardK at 11:03 PM (GMT -5) on 19 Jan 2024]

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