I am planning to use ADF4356. My question is- Is it possible to control the VCO core externally by a different chip like ADF4158?
Looking forward to your reply.
Yes, it is possible to lock the ADF4356 using an external PLL. It must first be locked using the internal PLL, then control can be passed to the external PLL.
However, the ADF4158 doesn't have better performance than the PLL inside the ADF4356, so there isn't really any gain.
What are you trying to achieve?
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