Patent ID: 6924705

Claim:
An injection synchronization narrowband regenerative phase-locked loop (INSNRPLL) comprises a synchronous oscillation loop and a phase-locked loop, it is characterized that: the synchronous oscillation loop is an injection-locked loop, and comprises an injection synchronization narrowband regenerative voltage-controlled oscillator (ISNRVCO) with an input terminal inputted by a clock frequency component generated by the input data and an output terminal outputting a regenerated clock signal; the phase-locked loop comprises: a digital phase detector with bang-bang working mode, detecting a phase difference signal between the input data and output regenerated clock signal of the ISNRVCO; a charge pump, receiving phase difference signal outputted from the digital phase detector; a loop filter with an input terminal and an output terminal connected to output terminal of the charge pump and voltage control terminal of the ISNRVCO, respectively.