Does REFCLK need to be running at all times?
We recommend that REFCLK remain running at all times. This is because the REFCLK runs the internal state machine. When the Deserializer shifts lock from REFCLK to embedded clock, then REFCLK can be taken away and the part may still work. However, should the Deserializer lose lock, without the presence of REFCLK, the LOCK pin will remain low incorrectly, indicating a locked part.
