jbdavid
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if you can use Verilog-AMS its probably better.. The main trick in my first one was to understand they type of CDR.. so I used a normal PFD for the "lock to reference" phase, when that is locked, the CDR gets a signal, that switches the control to the data channel Phase detector. The model I have references the design of our IP vendor, so I can't share it. Just these general concepts.
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