signalthebandwidthoftheloop filterwillbegreaterthanifit expectsafixedinputfrequency. Thefrequencyrangewhichthe PLLwillacceptandlockonis calledthecapturerange.Once thePLLislockedandtracking asignaltherangeoffrequencies thatthePLLwillfollowis calledthetrackingrange. ...
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[2] W. F. Egan, Phase-Lock Basics, John Wiley and Sons, 1998. ISBN 0-4712 -4261-6 Good introduction to PLLs. See also the same author’s Frequency Synthesis by Phase Lock. [3] B. Razavi, Monolithic Phase-Locked-Loops and Clock Recovery Circuits, IEEE Press, 1996. ISBN 0-7803-...
Phase-Lock Basics || The Basic Loop The article reviews the book "Phase-Lock Basics," by William F. Egan. Egan,F William - 《Microwaves & Rf》 被引量: 20发表: 2007年 Phase-Lock Basics: Second Edition Broad-based and hands-on, Phase-Lock Basics, Second Edition is both easy to ...
Broad-based and hands-on, Phase-Lock Basics, Second Edition is both easy to understand and easy to customize. The text can be used as a theoretical introduction for graduate students or, when used with MATLAB simulation software, the book becomes a virtual laboratory for working professionals ...
Figure 4. A PFD out of phase and frequency lock. Figure 5. Phase frequency detector, frequency, and phase lock. Returning to our original example of the noisy clock that requires cleaning, the phase noise profile of the clock, free running VCXO, and closed-loop PLL can be modeled in ADIs...
3.4.3 Relationship of Error Function to Closed Loop 103 3.4.4 Output Responses to Unnormalized Input Steps 107 3.4.5 Ramp Phase Solution 109 3.4.6 Parabolic Phase Solution 110 3.5 Acquisition of Lock 112 3.5.1 Derivation of the Second-Order, Nonlinear, Ordinary Differential Equation 114 3.5.2...
Figure 2, but it allows the choice of an external VCO for applications that need to meet more stringent phase-noise requirements. In the simulation, the PLL loop filter was set at 20 kHz to attempt to minimize the op amp noise contribution, while keeping the PLL lock time less than 2 ...
These PLL architectures use distinct mathematical conditions to tailor frequency generation and phase alignment capabilities across various applications. Whether for simple clock alignment or complex RF synthesis, each PLL type offers unique advantages to meet precision, stability, lock speed, and integration...
PLL Basics A phase-locked loop is a feedback system combining a voltage-controlled oscillator and a phase comparator so connected that the oscillator frequency (or phase) accurately tracks that of an applied frequency- or phase-modulated signal. Phase-locked loops can be used, for example, to ...