Invention Grant
US07693247B2 Phase locked loop having reduced inherent noise 失效
锁相环具有降低的固有噪声

Phase locked loop having reduced inherent noise
Abstract:
A phase locked loop having reduced inherent noise is provided. The phase locked loop comprises a controlled oscillator for outputting a periodic output signal as a result of a control signal; a feedback unit for providing at least two periodic feedback signals having a constant phase shift to each other and each depending on the output signal; a phase/frequency detector for providing difference signals each depending on a periodic input signal and at least one of the feedback signals; and a control circuit for providing the control signal to the controlled oscillator depending on the difference signals.
Public/Granted literature
Information query
Patent Agency Ranking
0/0