Page 120 - Phase-Locked Loops Design, Simulation, and Applications
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MIXED-SIGNAL PLL ANALYSIS   Ronald E. Best                                              78
































































                      Figure 3.17 The pull-in process of a PLL using the JK-flipflop as a phase detector. The upper
                              trace  shows the average phase  detector output signal   , while the lower trace
                              shows the down-scaled frequency ω ′ created by the VCO.
                                                              2

             ■ For the passive lead-lag filter


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