Burst mode clock data recovery device and method thereof

A clock data recovery device, comprising:

• a clock data recovery loop for receiving a sampling clock signal and a data signal and using the sampling clock signal to lock the data signal to generate a recovery clock signal;
• a frequency tracking loop coupled to the clock data recovery loop for tracking a frequency of the recovery clock signal to generate a frequency detection signal associated with the recovery clock signal;
• a phase lock loop coupled to the clock data recovery loop and the frequency tracking loop for receiving the frequency detection signal and locking the recovery clock signal in a reference clock;
• and
• a fast-locking unit coupled to the clock data recovery loop for generating a fast-locking signal under a burst mode according to the recovery clock signal and a first phase detection signal to allow the clock data recovery loop to lock the data signal after the transition from a stall mode to the burst mode.