Frequency detector of phase locked loop

专利名称：Frequency detector of phase locked loop发明人：Je-kook Kim申请号：US08/962520申请日：19971031公开号：US05889418A公开日：19990330

摘要：A frequency detector in a phase locked loop which generates a clock signal forreproducing a signal from a optical disc. 3 T information corresponding to an upper limitof the frequency of the Eight- to-Fourteen Modulation signal is compared with theoscillation clock of the VCO divided by three to reduce the oscillation frequency of theVCO. Additionally, 11 T information corresponding to a lower limit of the frequency ofthe Eight-to-Fourteen Modulation signal is compared with the oscillation clock of theVCO divided by eleven to increase the oscillation frequency of the VCO thereby providinga VCO which oscillates at a frequency corresponding to the frequency of the Eight-to-Fourteen Modulation signal.

申请人：SAMSUNG ELECTRONICS, CO., LTD.

代理机构：Marger Johnson & McCollom P

更多信息请下载全文后查看