3678 - PLL: When does the lock of PLL lose?

3678 - PLL: When does the lock of PLL lose?

Description:
There could be several reasons for Phase Lock Loop (PLL) losing the lock.

1.If the input clock or feedback signals to the PLL become invalid.

2.If there is Noise in the PLL power supply.

3.If the input clock Period Jitter (tIPJIT) of the source is not within the specification.